Showing 137,132 complaints - component: POWER TRAIN
Incident date: Jul 1, 2025
The contact owns a 2020 Jeep Cherokee. The contact stated that while driving approximately 15 MPH, the steering wheel suddenly turned to the right and the vehicle became difficult to steer. There was an abnormal roaring sound coming from underneath the vehicle. The contact waited until the vehicle decelerated before stopping the vehicle. The contact waited for a while before being able to continue
... driving and coasting into a parking space. The vehicle was taken to the dealer, who diagnosed the vehicle with PTU failure. The vehicle was not repaired because parts were on backorder for 2 months. The dealer suggested that the contact not drive the vehicle until the vehicle was repaired to avoid further damage. The contact referenced NHTSA Campaign Number: 26V290000 (Power Train); however, the VIN was not included in the recall. The manufacturer was not made aware of the issue. The failure mileage was 111,299.Read more
Incident date: Jul 21, 2026
There is a recall for the transmission cable bushings for years 2013-2106. The recall came out in 2022. This same bushing is used in the 2018 ford fusion model that was not fixed. The bushing on my vehicle which is a 2018 complete failed while I was driving and left me immobile until I searched for a fix and found the bushing completely gone. Ford Escape: Model years 2013–2019, Ford C-Max: Mode
... l years 2013–2018; Ford Fusion: Model years 2013–2016; Ford Transit Connect: Model years 2013–2021; Ford Edge: Model years 2015–2018. Each model besides the fusion went past the 2018 model in which the 2018 fusion should be apart ofRead more
Incident date: Aug 1, 2026
Transmission is shifting roughly and unexpectedly. Goes from high gear into low gear without warning for example going 45-50 in 10th gear and downshifts suddenly to 1st or 2nd gear causing vehicle to rapidly slow down throwing driver and passengers forward and possible being rear ended scenario.
Incident date: Aug 2, 2026
Delayed/unexpected transmission gear changes. The transmission delays downshifts at slow speeds causing the vehicle to not accelerate when acceleration is needed. This causes a huge safety issue when maneuvering in traffic (for example). Please help me with a solution to this.
Incident date: Jul 17, 2026
I am reporting a safety-related transmission problem I experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly shifts hard/lags on gears 3-5 and sometime higher gears 7-9 at higher speeds. I’ve also noticed a buzzing/metallic rattling coming near the engine from inside. There is also times i can tell i have no power wh
... en trying to speed up and the other day i almost thought i was going to get T-Boned. This occurred while on my daily traffic commute to work, creating a potentially dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting while merging, accelerating into traffic, crossing an intersection, turning, or traveling at highway speed can create a collision hazard. Because I personally experienced this unexpected transmission event, I request that NHTSA investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150s. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this is a safety defect requiring a recall. I believe owners should not have to wait for a potentially dangerous transmission failure before this known condition is addressed.Read more
Incident date: Jun 22, 2026
Intermittent hard downshifts when going from 3rd to 2nd gear. When merging onto the highway or periods of brief acceleration the transmission fights to find the correct gear.
Incident date: Aug 2, 2026
I’ve had this car since 2021 and it’s been worked on 3 times for the same issues. My clutch and a couple other things for the transmission. I just recently had it worked on for transmission problems and paid $1100 for a belt replacement that didn’t even fix the issue. I told them it was clutch A like the code readers pulled (multiple times might I add) and they did a test and charged me for
... that test and said it was just the harness belt. Today my check engine light came on, and I had a code pulled and it was clutch A like I told them (P0902). I’ve had the actuator replaced at least twice and the power module has also been replaced. My cars engine light is on and it’s shifting hard and is taking a while to even shift. I have the invoices to show that each time it’s been worked on it’s been an issue with the transmission. My VIN number needs to be recalled before something worse happens. Each time it’s been worked on it costed me too much money especially to keep having the same problems. I’ve also done research that proves this particular issue is an issue with a lot of ford focus cars.Read more
Incident date: Jul 22, 2026
My 2019 Toyota Highlander has the same UA80 transmission that Toyota was required to fix under CUSTOMER SUPPORT PROGRAM ZJC, which covers 2017-2018, the transmission has the same whining noise and shifting issues. Toyota must accept responsibility for their manufacturing error where the washer tab was not bent properly, allowing a nut to loosen leading to the whining noise. I expect the NHTS to
... require them to cover their 2019's as well, as a consumer we are getting screwed here.Read more
Incident date: Aug 1, 2026
Vehicle stalls out at highway speeds. It will be in gear, shown on the dash, it will be redlining, but not move. It will stall out while the vehicle is in motion. The accelerator does not provide power to the transmission and acts as if it is in neutral. All I can do is coast to the side of the road and power off the car, open the door to provide a full power down, then restart the vehicle. This h
... as happened over a dozen times since August 2025. Mercedes says there is no fix. It’s been in the shop more than 10 times for over 60 days. They have even sent out field engineers who cannot duplicate the issue, yet there are codes stored in the cars computer. The car also does not always shift into reverse or drive from park. The transmission often has a small 1-2 second delay upon pressing the accelerator from a stop, which sometimes puts me into the path of an oncoming car, say when turning left on a flashing yellow. Since the car has a delayed response, it puts me I harms way when I may have had time to go, but then it didn’t move. It also drives very jerky at times, shifts late or not at all. I have video of this but cannot load it through this form, so we need to send it a different way. I’ve opened multiple buy back requests as a lemon but Mercedes says no. I have far more documents than I can upload here if you have a way to send them. Mercedes says the car is safe and told me in person “if you crash, that’s why you have airbags”. Because the car can stall without notice at highway speeds, it is not safe in my opinion and it’s appalling they won’t fix it or buy it back.Read more
Incident date: Sep 1, 2025
While driving at normal and safe highway speeds, without warning (no audible or visual warning from the vehicle information display) my vehicle experienced engine lockout, loss of all non-electric power, and no control over vehicle speed. A few seconds after loss, the information display did show a "check engine light" and that the engine was in "lockout." We (my spouse, young child, and self) w
... ere surrounded by multiple commercial semi-trucks and passenger vehicles and had to weave and serve to avoid collisions at highway speeds and get to the shoulder of the highway in a few seconds. The root cause as diagnosed by a Chevrolet Dealership Service Department was failure of the magnetic strip that is press fit to the reluctor (tone) wheel. A 1/2in piece of the magnetic strip was missing and over 10 cracks within the strip itself observed. This magnetic strip is used by the Engine Control Module to measure engine RPMs. The strip's failure caused the EMC to shutdown the engine without warning which is a significant hazard for controlled vehicle movement at highway speeds. My vehicle's engine (LWN) is one of the few GM designs that have the press fit magnetic strip reluctor wheels. The rest use integrated wheels with the crankshaft or traditionally stamped steel with machined teeth. The vehicle and reluctor wheel has not been inspected by GM or any other representatives. I offered to send images to GM for records but they declined.Read more
Incident date: Jul 30, 2026
The engine sputters several times in a single trip, and is available upon request. The engine sputtered and the vehicle stopped in the middle of the road as I was trying to cross 2 lanes of traffic. It has sputtered so bad, I almost rear ended the vehicle in front of me. Yes, the dealership confirmed via text on 7/13/2026. The dealership confirmed it occurred then insisted on my picking up the
... vehicle despite of that. No effort to fix or determine why that was happening. I was told “the vehicle is learning how I drive, the road was bumpy, and the manufacturer would need more than to cover it” The dealerships invoice to the manufacturer stated “no sputtering” even after acknowledging in writing that it occurred and refused to change the paperwork. The dealership also reset the data and that it “could” resolve everything. If there’s nothing wrong with the vehicle, why would it need to be reset? The manufacturer has been called twice regarding the sputtering issue. No warning lights. Started in 10/2025 the dealership was made aware several times with several appointments and refused to look at the vehicle until the manufacturer contacted them in July.Read more
Incident date: Aug 1, 2026
Clutch assembly failed, the metal bracket weld cracked/failed resulting in the clutch pedal being inoperable. It's not available for inspection since I had it replaced and the defective assembly disposed of. My safety was at risk since I had extreme difficulty shifting gears on the road. The issue was confirmed at an independent service center - AAMCO of Huntsville, AL. No other entity inspe
... cted the part. The vehicle gave me no warning or indication of a problem other than the difficulty with starting and operating it.Read more
Incident date: Oct 1, 2025
The vehicle has experienced three separate incidents involving a sudden, unexpected loss of motive power at speed accompanied by a warning message ("Please pull off the road safely, vehicle will shut off soon") and a turtle icon ("Red Turtle of Death") on the instrument cluster. Two of these incidents occurred on major highways at speeds exceeding 60 mph. Incident History: February 2026 (Heavy Me
... lting Snow, Boston, MA): Vehicle experienced complete loss of propulsion while driving on a city street. Dealership (McGovern Chrysler Dodge Jeep Ram) held the vehicle for nearly a month under Diagnostic Trouble Code P167B ("Controlled System Shutdown"). Replaced occupant restraint module, which did not resolve the issue. Vehicle eventually resumed operating on its own. Recent Incident (Heavy Rain spray, Highway >60 MPH): Sudden loss of motive power on high-speed road. Instrument panel displayed turtle icon and forced an emergency pull-off. After cycling ignition, drive capability returned. OBD-II scanner returned code P0000 (generic placeholder concealing proprietary Chrysler hybrid/BPCM/PIM isolation fault codes). Two Days Later (Dry Conditions, Highway >60 MPH): Third sudden loss of motive power at 60+ mph, forcing an immediate pull-off into traffic shoulder. Check engine light remained on with code P0000. Safety Risk & Technical Context: Unexpected loss of motive power at highway speeds creates a critical safety hazard for vehicle occupants and surrounding traffic. These symptoms closely align with high-voltage isolation faults and internal short-circuiting documented in NHTSA Recall 23V-010 / PE22-008 (eFlite transmission internal connector wiring harness short). The vehicle presents a recurring hazard where moisture or intermittent electrical shorts trigger a high-voltage system shutoff, leaving the driver with limited or no propulsion without warning.Read more
Incident date: Aug 2, 2026
-On the date of Monday XXX at approximately 4:30 pm est I was traveling on [XXX] and transmission felt like a possible slip happened in transmission. At approximatively 4:45pm est I made it home tried to back vehicle into parking space and reverse was lost. Vehicle didn't and wouldn't shift into reverse. I had to push vehicle in spot backwards. No check engine or warning lights were displayed on d
... ash. - On Tuesday XXX. I contacted [XXX] of [XXX] approximately at 8:30 am est. [XXX] answered. I explained the symptoms and asked If I could bring in within the hour or so. He stated it would be fine to bring in. - At approximately 9:10 am est My girlfriend and [XXX] daughter got in vehicle. Started vehicle no service lights were on, but had no reverse still no reverse. My girlfriends mother was following us to pick us up at dealership as we dont have a 2nd vehicle. We started out driveway to [XXX]. I had no problems at 1st then prior to the intersection of [XXX] the Vehicle lost control on its own. The sequences happened fast and abrupt. 1. Vehicle downshifted roughly to about 3 gear 2. Lost power steering 3. engine over revved 4. vehicle pulled right. During this time as a professional trained driver. I removed us off [XXX] off road way on to [XXX] (To the right) to avoid being in an accident. I would say that the speed was roughly 20MPH at turn as I was avoiding the accident that could of potentially happened. I was not on asphalt the whole time to make turn as I had a limited vehicle (Not properly functional). I was able to stop at [XXX] to stop. Stopped on Brigantine is when I pointed out to my girlfriend that the lights just came on. in the meantime, we received a phone call from [XXX] (Girlfriends mom) asking where we went as she didn't see us. We explained to her situation, and she met on Brigantine and followed us to dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Aug 1, 2026
Purchased brand new vehicle. At the time of incident vehicle had 168 miles. I was driving approximately 20 miles per hour on a parkway entrance ramp with no vehicle in front of me and no vehicles approaching from behind. I accelerated gradually to merge onto the parkway. The engine kicked and the dashboard lit up with several warning indicator lights including the check engine light (see attached
... images). The dashboard also had the following messages displayed “ system malfunction visit your dealer, drive start control malfunction visit your dealer, AWD malfunction 2WD Mode engaged visit your dealer, check engine visit your dealer, hybrid system malfunction visit your dealer, hybrid system malfunction output power reduced, visit your dealer”. I was able to drive the vehicle home about 1 mile. Called pickup truck and had vehicle towed to dealer. Dealer kept vehicle for 6 days. In that time dealer was in communication with Toyota headquarters. On the 6th day, a mechanic from the service department called and said the vehicle was ready for pick up. When I asked why this occurred, the only thing they could attribute the incident to was the brand new battery was slightly low.Read more
Incident date: Jul 18, 2026
Ive noticed that the electric motor sometimes doesnt want to disengage quickly when I step on the brakes. In this incident I had to make a hard brake because someone pulled out in front of me. I had the cruise control on. When I slammed on the brakes the vehicle did not stop fast the vehicle felt as if it was still being pushed by something. Then a small jolt was felt and then the vehicle fi
... nally slowed. Had I been going faster or had the car that pulled been closer. This fault would have resulted in an incidentRead more
Incident date: May 12, 2026
I am reporting a safety-related transmission problem I experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly has lost propulsion and RPMs flare while driving steadily uphill. This occurred while merging onto a fast moving highway and while traveling at a steady speed going uphill, creating a potentially dangerous situ
... ation because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting while merging, accelerating into traffic, crossing an intersection, turning, or traveling at highway speed can create a collision hazard. Because I personally experienced this unexpected transmission event, I request that NHTSA investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150s. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this is a safety defect requiring a recall. I believe owners should not have to wait for a potentially dangerous transmission failure before this known condition is addressed.Read more
Incident date: Jul 22, 2026
My transmission has been slipping and sticking for years. My USB port hasn't worked in years and the connection as well, the light on the radio doesn't work.
Incident date: Jul 6, 2026
I am reporting a safety-related defect involving the 10R80 automatic transmission in my 2022 Ford F-150 STX. While slowing to a stop during normal driving, the transmission unexpectedly performed an extremely harsh downshift. The truck jerked forward violently as it shifted into a lower gear, making it difficult to slow the vehicle in a smooth and predictable manner. This occurred without warning
... and created a dangerous situation while approaching an intersection. A vehicle should decelerate in a controlled and predictable way. Instead, the sudden downshift upset the vehicle’s behavior and reduced my confidence in its safe operation. If this happens in heavy traffic, on wet roads, or near pedestrians, it could easily contribute to a crash. This is not simply an issue of comfort or drivability. It is a safety concern because it affects the driver’s ability to safely control the vehicle. My truck is equipped with Ford’s 10R80 transmission, which has been the subject of thousands of owner complaints describing harsh downshifts, delayed engagement, slipping, gear hunting, and other dangerous shifting behavior. Publicly available technical information also discusses failures involving the CDF clutch cylinder and sleeve, which can cause hydraulic pressure loss and unpredictable transmission operation. Based on my experience and the large number of similar reports from other owners, I believe this issue deserves a thorough safety investigation. NHTSA should review warranty claims, dealer repair records, transmission replacements, technical service information, and consumer complaints to determine whether this transmission contains a safety-related defect that warrants a recall or other corrective action. Owners should not have to wait until a harsh downshift causes a serious collision before this issue is addressed. I respectfully request that NHTSA investigate this defect and require an effective repair to protect drivers, passengers, and everyone sharing the roadRead more
Incident date: Jul 28, 2026
Truck will flare on lower gears of the 10 speed transmission. The 10R80 to be exact. The CDF drum was engineered incorrectly and ford has made an updated part but they didn’t make it till 2023. So that leaves years 17’-22 to have transmission problems and catastrophic transmission failures because of a bad design. It’s very dangerous for a transmission to lose power on the roads and or react
... in a way that can make you lose control of vehicle. Ford has acknowledged the issue but not for the affected years. People have spent millions out of pocket and or if they had warranty coverage they spent have spent lots of unnecessary time with vehicles in and out of dealers and shops.Read more
Incident date: Jul 28, 2026
Truck will flare on lower gears of the 10 speed transmission. The 10R80 to be exact. The CDF drum was engineered incorrectly and ford has made an updated part but they didn’t make it till 2023. So that leaves years 17’-22 to have transmission problems and catastrophic transmission failures because of a bad design. It’s very dangerous for a transmission to lose power on the roads and or react
... in a way that can make you lose control of vehicle. Ford has acknowledged the issue but not for the affected years. People have spent millions out of pocket and or if they had warranty coverage they spent have spent lots of unnecessary time with vehicles in and out of dealers and shops.Read more
Incident date: Aug 1, 2026
I am reporting a safety-related transmission problem I experienced with my 2022 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly shift hard in lower gears. It upshifts hard and downshifts really hard, it feels like someone runs into you. This occurs in stop and go traffic or slow moving traffic creating a potentially dangerous situation
... because the truck did not respond as expected when I needed predictable acceleration or propulsion and braking. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuiRead more
Incident date: Jun 20, 2026
I am the original owner of a 2023 Mazda CX-30 AWD (VIN: [XXX]), purchased new on XXX from Mazda of Clearwater, [XXX]. This vehicle has experienced four separate warranty failure events involving critical safety systems within approximately 32 months and 44,530 miles of ownership. In June 2026, at approximately 44,500 miles, my 2023 Mazda CX-30 AWD exhibited sudden RPM lock and inability to shift
... , with delayed and jerky acceleration. Dashboard warning lights activated including transmission malfunction indicators. DTCs P0756 (Shift Solenoid B Stuck Off) and P0780 (Shift Malfunction) were set. The vehicle was taken to an authorized Mazda dealership. The dealer confirmed the concern and contacted Mazda's regional tech specialist. The valve body was replaced first per Mazda's direction; however, the vehicle continued to exhibit rough and delayed shifting on test drive. Mazda then directed the dealer to replace the full transmission assembly. The repair required 35 days at the dealership. This failure did not occur in isolation. The same vehicle had previously required warranty replacement of brake components (disc, caliper, pads) at approximately 26,400 miles due to a driveability concern, and battery and drive belt tensioner replacement at approximately 29,100 miles. An independent service record five months prior to the transmission failure confirmed transmission fluid was at correct level, ruling out neglect. The pattern of cascading safety-system failures — braking, electrical, and transmission — within 32 months on a low-mileage vehicle suggests a potential systemic manufacturing defect. The RPM lock and inability to shift at highway speeds represents a direct safety hazard to the driver and other motorists. All repairs were confirmed and performed by an authorized Mazda dealer under factory warranty. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Jun 15, 2026
I am reporting a safety-related transmission problem I experienced with my 2023 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly shifts down violently from 10th to 8th gear, and rapidly jumping from 10th to 8th to 10th, causing harsh shifts. This occurred while driving on a highway or above 60mph. Just cruising and traveling. creating a p
... otentially dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting while merging, accelerating into traffic, crossing an intersection, turning, or traveling at highway speed can create a collision hazard. Because I personally experienced this unexpected transmission event, I request that NHTSA investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150s. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this is a safety defect requiring a recall. I believe owners should not have to wait for a potentially dangerous transmission failure before this known condition is addressed.Read more
Incident date: Oct 9, 2024
I am reporting a severe safety defect regarding the automatic transmission on my 2020 Honda Pilot AWD (VIN: [XXX]). The vehicle experiences a violent and constant transmission vibration/judder under light throttle acceleration. On XXX, at 127,073 miles, an authorized Honda dealership officially diagnosed the vehicle under Repair Order # XXX, confirming the presence of "shudder at light throttle".
... Despite changing the transmission fluid as required by maintenance schedules, the issue persists. This failure causes unexpected vehicle hesitation and jerky shifts while driving at highway speeds, creating a high risk of rear-end collisions and posing an immediate safety hazard to my family and other drivers on the road. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Jul 21, 2026
I am reporting a severe safety hazard regarding my 2018 Ford F-150, which is equipped with the 10R80 10-speed automatic transmission. While driving, the transmission suddenly lost its selected gear, slipped, and failed to engage. This event was accompanied by violent shifting, severe RPM flaring, and unexpected, harsh downshifts.This dangerous failure occurred during critical driving maneuvers—s
... pecifically while accelerating and attempting to merge onto a highway—creating an immediate collision hazard. The truck failed to respond to throttle input, depriving me of predictable acceleration and propulsion when I needed it most to match the speed of oncoming traffic.I believe this incident is directly related to the well-documented 10R80 CDF clutch-cylinder sleeve defect. Ford’s own technical documentation acknowledges that axial movement of this sleeve causes internal hydraulic leaks, leading to erratic shifting, slipping, and sudden losses of propulsion.This is fundamentally a safety defect, not a minor quality issue. An unexpected loss of power while merging or traveling at highway speeds places occupants at extreme risk of a rear-end collision. Because I have personally experienced this terrifying failure, I request that NHTSA open a formal investigation into the Ford 10R80 CDF clutch sleeve defect before it results in severe injuries or fatalities. Owners should not have to wait for a catastrophic transmission failure to receive a remedy.Read more
Incident date: Aug 1, 2026
I am reporting a safety-related transmission problem I experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving, the transmission would unexpectedly hesitate before engaging the selected gear and then shift harshly with a noticeable bang. On multiple occasions, the engine RPM would flare before the transmission engaged, resulting in delayed or inconsistent
... acceleration. The transmission has also exhibited harsh shifts, delayed engagement, and unpredictable gear changes. These events occurred during normal driving, including accelerating from a stop, merging into traffic, and driving at highway speeds. The transmission did not respond as expected when I needed predictable acceleration, creating a potentially dangerous situation. Delayed engagement and sudden harsh shifts make it difficult to judge available power when entering traffic or changing lanes. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks, resulting in harsh or delayed engagement and shifting. This condition can cause slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected hesitation, delayed engagement, or loss of propulsion while merging, accelerating into traffic, crossing an intersection, or traveling at highway speed creates an increased risk of a crash. Because I personally experienced these unexpected transmission events, I request that the National Highway Traffic Safety Administration investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150 vehicles. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this represents a safety defectRead more
Incident date: Mar 5, 2026
Incident date: Jul 29, 2026
I'm reporting a transmission problem on my 2021 Ford F-150 with the 10R80 automatic transmission that I believe is a safety issue, not just a reliability one. The truck currently has about 55,000 miles on it. Right now the truck shifts hard and jerks every time I drive it, and it's especially bad at low speed. The worst situation is creeping through a parking lot looking for a spot, the transmiss
... ion drops down into first with a clunk and a jerk, and then kicks again when it shifts back up out of first. It's rough enough that I've taken to putting the truck in "Eco" drive mode on purpose, because that softens the shift profile and takes a little of the edge off. Once I'm out of the low-speed stop-and-go and up to normal road speed, it seems to smooth out and drive okay, but the low-speed shifting is genuinely excessively rough. From what I've read, this matches the known 10R80 problem where the CDF clutch sleeve can move axially and cause hydraulic-circuit leaks, which leads to slipping, RPM flares, delayed or harsh engagement, and unexpected shifts. Everything I've found says this condition progressively worsens as the transmission degrades. That's exactly why I'm filing now rather than waiting. A hard, unpredictable shift or a loss of propulsion at the wrong moment — pulling into traffic, crossing an intersection, merging — can easily cause a collision. I don't want to wait until it fails in a dangerous spot and someone in my family gets hurt. I'd like NHTSA to investigate the 10R80 CDF clutch-cylinder/sleeve condition on Ford F-150s and to review Ford's warranty claims, dealer repair records, transmission replacements, and other owner complaints to determine whether this is a defect requiring a recall. Owners shouldn't have to wait for a dangerous failure before a known condition like this is addressed.Read more
Incident date: Aug 1, 2026
I am reporting a safety-related transmission problem I experienced with my 2019 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly shifted violently from gears 3 to 5 and 1 to 3. This occurred while accelerating on the highway and from a stop light, creating a potentially dangerous situation because the truck did not respond as expected w
... hen I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuiRead more
Incident date: Jul 3, 2022
I am reporting a safety-related transmission problem I experienced with my 2022 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission shifts in fourth thinks about it then applies the power This occurred while I merge onto the interstate creating a scary moment of trying to get up to speed with the traffic and it happens often , creating a potentially
... dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting while merging, accelerating into traffic, crossing an intersection, turning, or traveling at highway speed can create a collision hazard. Because I personally experienced this unexpected transmission event, I request that NHTSA investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150s. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this is a safety defect requiring a recall. I believe owners should not have to wait for a potentially dangerous transmission failure before this known condition is addressed.Read more
Incident date: Oct 1, 2025
Transmission….very hard shifting and unexpected downshifting at random times. Needs to be a recall and fix on transmission.
Incident date: Aug 1, 2026
While driving on XXX I received a message on the dash: service transmission, will not be able to shift soon. I went to the nearest GMC service center, located in [XXX]. Their diagnostics indicated that the Gear Shift Control Module needed to be replaced with new PN 86421783. That part was not available until XXX, but old PN 86274946 was available at a few dealersships, and it acould possibly b
... e ordered and arrive sooner than XXX. I was told that driving the truck would be okay, but the part should be replaced as soon as possible. I live over an hour's drive from [XXX], and with the assurance that driving the GMC was okay, I chose to have the part shipped to and replaced at the dealership in [XXX], the nearest one to [XXX]. I drove back to [XXX], stopping at the Waldoboro dealership to make an appointment for their inspection of my truck, their troubleshooting the problem, and ordering the necessary parts to repair the transmission. When the part number went into their ordering system, the dealership was advised that no parts were available and no availability date was known. I contacted GMC Customer Assistance to express my concern and request assistance in locating the parts, but she was also unable to locate the parts or speed their availability. Again, on the assurance that the truck was okay to drive, on XXX I drove to my storage units near [XXX], and when I tried to leave and shifted into reverse the truck would not move. AAA towed me to the dealership in Waldoboro, and the replacement parts search began. Finally, on 7/28/26 I was advised that the part was at the dealership, and on XXX I picked up my repaired GMC truck. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Jul 17, 2026
I am reporting a safety-related transmission problem I experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly downshifts aggressively resulting in the rear tires locking up and sliding for a moment. This occurs while driving in stop and go traffic as well as coming to a stop light/sign, creating a potentially dangerou
... s situation. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting while merging, accelerating into traffic, crossing an intersection, turning, or traveling at highway speed can create a collision hazard. Because I personally experienced this unexpected transmission event, I request that NHTSA investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150s. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this is a safety defect requiring a recall. I believe owners should not have to wait for a potentially dangerous transmission failure before this known condition is addressed.Read more
Incident date: Jul 17, 2026
I am reporting a safety-related transmission problem I experienced with my 2023 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission has suddenly lost propulsion, jerked, and hard down shifted impacting braking. This occurred while trying to merge onto freeways and making turns into lanes containing traffic, creating a potentially dangerous situatio
... n because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuits. I've also experienced similar issues with this transmission after warranty repairs had been completed.Read more
Incident date: Jul 17, 2026
While driving approximately 30 mph in June 2024, my 2018 Land Rover Discovery Sport unexpectedly displayed Gearbox Fault and Brake Fault warnings and shifted itself into Park while the vehicle was moving. The vehicle became immobilized in the roadway and could not be shifted out of Park for an extended period. The identical failure occurred again in July 2025 and July 2026. During the 2025 and 20
... 26 events, the vehicle again became locked in Park and left me stranded. During the 2026 incident, the failure occurred twice within approximately fifteen minutes, and each event required approximately thirty minutes of repeatedly applying the brake pedal and cycling the electronic parking brake before the transmission would release. Land Rover dealerships have recovered transmission diagnostic trouble codes, including P099B-14 (Shift Solenoid G Control Circuit Low), and have repeatedly diagnosed the likely cause as an internal transmission valve body and/or internal transmission wiring harness failure. The Warranty Company - Fidelity Warranty Services (Carmax) has consistently refused to cover the repair of this vehicle stating that it must be replicated in front of the warranty technician. This is an intermittent issue which means it can not be replicated on demand. Instead of working with me, they continue to have me drive a vehicle which can put me and others at risk This failure has now occurred over three consecutive years and creates a significant safety concern because the vehicle can unexpectedly become immobilized and lose propulsion. I am submitting this complaint because I believe this may represent a recurring safety defect.Read more
Incident date: Jul 15, 2026
While driving approximately 30 mph in June 2024, my 2018 Land Rover Discovery Sport unexpectedly displayed Gearbox Fault and Brake Fault warnings and shifted itself into Park while the vehicle was moving. The vehicle became immobilized in the roadway and could not be shifted out of Park for an extended period. The identical failure occurred again in July 2025 and July 2026. During the 2025 and 20
... 26 events, the vehicle again became locked in Park and left me stranded. During the 2026 incident, the failure occurred twice within approximately fifteen minutes, and each event required approximately thirty minutes of repeatedly applying the brake pedal and cycling the electronic parking brake before the transmission would release. Land Rover dealerships have recovered transmission diagnostic trouble codes, including P099B-14 (Shift Solenoid G Control Circuit Low), and have repeatedly diagnosed the likely cause as an internal transmission valve body and/or internal transmission wiring harness failure. The Warranty Company - Fidelity Warranty Services (Carmax) has consistently refused to cover the repair of this vehicle stating that it must be replicated in front of the warranty technician. This is an intermittent issue which means it can not be replicated on demand. Instead of working with me, they continue to have me drive a vehicle which can put me and others at risk This failure has now occurred over three consecutive years and creates a significant safety concern because the vehicle can unexpectedly become immobilized and lose propulsion. I am submitting this complaint because I believe this may represent a recurring safety defect.Read more
Incident date: Jul 29, 2026
Vehicle shudders at acceleration at times making merging onto highways and passing vehicles dangerous.
Incident date: Jul 26, 2026
On Saturday July 25th, while driving at 70 mph on the highway, my van lost the ability to accelerate or maintain velocity. There was no warning or indication that this was going to happen. There was a beep and the screen flashed to a screen that said to pull over immediately and safely. Surprised and scared, I had to cut across 3 lanes of traffic while losing velocity cutting off a tractor trai
... ler because my velocity dropped quickly. After restarting, the vehicle ran normally. I drove in the slow lane for a mile an it happened again. I was able to get the vehicle off the highway and drive slowly and safely on backroads to get the van to a Ourisman Chrysler in Clarksville, MD. The check engine light was on when I arrived at the dealer. Immediately upon arrival I was told by a service representative that it will most likely need a new transmission. On Tuesday he told me a tech verified it needs a new transmission. He told me the vehicle was classified as VOR (Vehicle Off Road) meaning it was unsafe or unable to be driven on the road and that parts were ordered and expedited. I did not hear back from the dealership until Friday at which point they surprisingly told me my vehicle was ready to pick up. In an email I was told: "what was found was a stored fault code P0A43-00 Drive motor "A" position sensor circuit intermittent. There is a TSB 21-037-26 for that fault code and vehicle going into limp mode and the repair is a rebuild kit for the transmission. " Despite this they also said in an email: "cleared codes and perform test drive. Code never came back and it states in the procedure you must verify the problem meaning it happened or is happening via active fault code which it is not." They refuse to fix the problem, despite acknowledging it happened. I was told to take the vehicle back and drive it as normal until it happens again, which I refused due to safety concerns. The vehicle currently has a bumper-to-bumper warranty.Read more
Incident date: Jul 31, 2026
While driving at 60 MPH Drive Mode Selector changed to Baja Mode and switched to 4WDHI. Had to stop and shut off truck to resume normal driving. While driving at 25-30 MPH in Normal Mode, Drive Mode changed to Rock Crawl Mode, engaged rear axel lock, and attempted to engage 4WD Low Range (several times). My local dealer Service Dept. is unaware of any other instances of this, although it appears t
... o be fairly common according to posts on internet forums.Read more
Incident date: Jun 18, 2024
I am reporting a safety-related transmission problem l experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly will shift gears violently, unexpectedly downshifted. This occurred while accelerating, merging onto a highway, turning, crossing an intersection, traveling at highway speed, stop-and-go traffic, creating a pote
... ntially dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting while merging, accelerating into traffic, crossing an intersection, turning, or traveling at highway speed can create a collision hazard. Because I personally experienced this unexpected transmission event, I request that NHTSA investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150s. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this is a safety defect requiring a recall. I believe owners should not have to wait for a potentially dangerous transmission failure before this known condition is addressed.Read more
Incident date: Dec 2, 2025
2017–2023 F-150 OWNERS — 10R80 TRANSMISSION PROBLEMS: PLEASE REPORT TO NHTSA I’ve experienced hard/violent shifting, slipping, RPM flares, delayed engagement, unexpected downshifts, lurching, loss of a gear, loss of propulsion, or other abnormal behavior from the 10R80 transmission, and am filing a safety complaint with NHTSA. This isn't just about an expensive transmission repair. Unexp
... ected loss of propulsion or unpredictable shifting can become a serious safety issue, especially when merging onto a highway, accelerating into traffic, crossing an intersection, turning, or trying to avoid another vehicle. Ford has technical information addressing the CDF clutch-cylinder/sleeve issue in 10R80-equipped F-150s. The documented condition involves movement of the CDF sleeve that can cause hydraulic-circuit leaks and result in harsh or delayed engagement and shifting. I am reporting a safety-related transmission problem I experienced with my 2022 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly failed to engage, shifted violently, RPMs flared, and unexpectedly downshifted. This occurred while driving normally (accelerating, merging onto a highway, turning, crossing an intersection, traveling at highway speed, stop-and-go traffic, etc.), creating a potentially dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting.Read more
Incident date: Jul 25, 2026
I am reporting a safety-related transmission problem I experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly slipped at least twice, and shifts violently often. The truck while driving on a 35mph road after just going over a railroad track I went to accelerate and lost gear and the transmission slipped really bad and v
... iolently caught a gear after reaching around 4000 rpm. The truck also shifts violently when under moderate acceleration at almost all times in gears 2-5 creating a potentially dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting while merging, accelerating into traffic, crossing an intersection, turning, or traveling at highway speed can create a collision hazard. Because I personally experienced this unexpected transmission event, I request that NHTSA investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150s. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this is a safety defect requiring a recall. I believe owners should not have to wait for a potentially dangerous transmission failure before this known condition is addressed.Read more
Incident date: Jul 25, 2026
I am reporting a safety-related transmission problem I experienced with my 2023 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly lost the selected gear, its slipped, shifted violently, RPMs flared, unexpectedly downshifted from 5th to 1st. So I took it in and they said it was my torque converter going out, and that it wasn’t something t
... hat they were aware of being a problem. This occurred when accelerating, merging onto a highway, turning, or just when driving straight. Creating a potentially dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This can cause strain and damage to other parts on the transmission as well. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting while merging, accelerating into traffic, crossing an intersection, turning, or traveling at highway speed can create a collision hazard. Because I personally experienced this unexpected transmission event, I request that NHTSA investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150s. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this is a safety defect requiring a recall. I believe owners should not have to wait for a potentially dangerous transmission failure before this known condition is addressed.Read more
Incident date: Jun 30, 2026
I am reporting a safety-related transmission problem I experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly violently jerks from 2nd to 3rd gear I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can
... cause hydraulic-circuit leaks andRead more
Incident date: May 12, 2026
Transmission was shifting erratically and harsh. I had to replace at my cost
Incident date: May 12, 2026
While driving truck down highway with cruise set at 68mph . I was in a bit of incline( not towing) vehicle violently downshifted from 10th to 1st . Service powertrain wrench came up on dash . Vehicle was derated . I came to a stop and shut down key off restarted . Vehicle operated normally again. Took vehicle to ford dealership where they could not find any issue . They also installed a pcm update
... at that time. Since then the vehicle has a harsh 3-4,5,6 shift and flaring in 7,8,9&10. I am convinced and concerned that the transmission is hurt due to what happened. Ford quoted 13,000.00 to install a new transmission. The truck has never been abused. I don’t wish what is happening to me on anyone as a inexperienced driver in winter conditions would have caused a major accident.Read more
Incident date: Jul 15, 2026
For about a year the transmission has been having an issue that has resulted in it now needing to be replaced. Started as periodic hard downshifting between 4th and 3rd gears. Now it periodically up and down shifts hard or skips gears between 2nd and 4th gears.
Incident date: Aug 1, 2026
ABS, Traction controle and 4 wheel drive system shut down. the truck is sending code- C0031-1D directly related to C4B recall. The dealerships have no fix and offered no support or guidance but did agree that the truck is unsafe to drive as is.
Incident date: Sep 11, 2023
My truck has spent 80 days in the shop over 11 visits attempting to repair the transmission since 2023. The truck has a hard downshift from 5-4, 4-3, and sometimes 3-1 while light braking coming to a stop. Sometimes it’s several times per day and sometimes not in an entire week. On average it occurs 2-5 times per week. I drive 40 miles to work mostly on the freeway with little traffic with two
... stop signs going and one stop sign + 4 lights returning so I don’t have that many locations for the condition to be repeated which means the frequency it occurs is pretty high. It is an hard enough downshift where it clunks real bad and sometimes shutters the truck. The transmision cannot last long term and is likely loosening / damaging other components. One of the hardest downshifts I have felt occurred 2 months ago. It shuttered so bad, it felt something could have been damaged. The same day I was holding speed going downhill and it had a hard shift from 3-2. On several occasions in the last 3 years it had a clunk from 5-6 while accelerating on the freeway. Every few weeks it has a hard shift from 4-3 going uphill for power. The adaptive tables have been reset multiple times. Sometimes that helps for a little bit, sometimes not. Long term it is not a solution. The pan was dropped at one of the last visits and a repair made inside. This did not make any significant changes. The hardest downshift I have ever felt (above) occorred several days after this.Read more