Showing 64,800 complaints for GMC
Incident date: Jun 8, 2026
I have experienced a severe hesitation or delay in acceleration when accelerating from a stop or near-stop condition. While the issue has only occurred a few times over the past several months, on multiple occasions it happened while merging into traffic and nearly resulted in an accident. Toyota has issued Technical Service Bulletin (TSB-0032-26) addressing this condition. However, when I brough
... t my vehicle to the dealership, Toyota documented that they were unable to reproduce or confirm the hesitation, and no repair was performed. This defect presents a significant safety risk. Unexpected loss of acceleration during traffic merges, intersections, or other situations requiring immediate power can place drivers and passengers in danger and could lead to serious injury or death. Given the safety implications and the fact that the remedy appears to be a software update requiring less than an hour to perform, I believe this issue warrants a formal safety recall rather than a voluntary Technical Service Bulletin. I urge NHTSA to investigate this matter and require Toyota to provide a recall remedy for all affected vehicles.Read more
Incident date: May 15, 2026
I was driving my Tesla in self drive mode, and ibecause it started raining. I reduce the speed to standard. I had a notification on the screen, an alert in red. That the tesla reached the maximum speed in that mode “standard”. I was surprised and decided ti canceled the FSD feature and took control of the vehicle. Then when I was driving in the expressway very close to my exit on the right lan
... e, the car accelerated by itself and turn to the left unexpectedly. I tried to returned the car to my lane and I never had control again of the car. Not the steering wheel, not the breaks responded. I was spinning on the expressway until I hit the concrete barrier with the rear bumper. Hopefully I did not hit any car nor they didn’t hit me. The car shutdown after the impact. Tesla sent me the footage of the impact, ignoring the moment that caused that incident that was some seconds before. The brakes were automatically turned onz and the wheels did not move. I know something wrong happened. Specially because the incident some minutes before when I was driving in standard mode and accelerated with no reasons. I have safety concerns. Also I noticed that after the last upgrades the car was havung navigation issues that I reported immediately when the autopilot was removed and we have to select the options.Read more
Crash
Incident date: May 28, 2026
I was driving down the highway when I kinda noticed speed changed. ABS lights, foreword collision light, and rear end lights, so I turned around went back home. I rarely drive my car and I never had any problems with it. I purshased it brand new.
Incident date: Jun 9, 2026
Coolant system and engine fan
Incident date: Jun 9, 2026
The rear passenger side sail applique flew off the truck while I was driving on the freeway.
Incident date: Jun 6, 2026
Manufacturer Recall Number93C has been almost a year and the remedy still not yet available!!
Incident date: Jun 6, 2026
Description of Safety Defect: The Automatic Emergency Braking (AEB) / Forward Collision Avoidance system is severely malfunctioning. On multiple occasions, the vehicle has experienced "phantom braking"—abruptly slamming on the brakes for no reason whatsoever. There were no obstacles, pedestrians, or vehicles ahead to trigger the system. This malfunction is happening at high speeds on major high
... ways. Safety Risk and Impact: This issue represents an immediate and terrifying safety hazard. Unexpectedly slowing to a sudden stop at highway speeds completely compromises vehicle control and leaves me at an extreme risk of being rear-ended by high-speed traffic. It is a severe danger to myself, my passengers, and every other driver on the road. While the vehicle is currently subject to a manufacturer recall regarding the backup camera and other software updates, this specific, dangerous braking behavior makes the vehicle incredibly unsafe to operate. I request that the NHTSA review this issue immediately to determine if a broader safety investigation or expanded recall is required for the 2024 Honda Prologue.Read more
Incident date: Jun 8, 2026
The contact owns a 2025 Ram 1500. The contact received a notification of NHTSA Campaign Number: 26V059000 (Exterior Lighting, Electrical System); however, the part to do the recall repair was not yet available. The local dealer was contacted on several occasions and confirmed parts were on back order. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall
... repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.Read more
Incident date: Jun 1, 2026
2024 Wrangler RHD. After being parked overnight pushing the start button clicks once as if the battery is weak. A second push of the start button the Jeep starts normally. Also, the clock resets itself 4 hours ahead. The HVAC temperature resets itself to 72 degrees regardless of where it was when parked. When shifting into reverse the backup camera displays a blue screen. Dealership is going t
... o ensure software is current and check the battery. This is an ongoing issue.Read more
Incident date: Jun 1, 2026
2024 Wrangler RHD. After being parked overnight pushing the start button clicks once as if the battery is weak. A second push of the start button the Jeep starts normally. Also, the clock resets itself 4 hours ahead. The HVAC temperature resets itself to 72 degrees regardless of where it was when parked. When shifting into reverse the backup camera displays a blue screen. Dealership is going t
... o ensure software is current and check the battery. This is an ongoing issue.Read more
Incident date: Jun 1, 2026
Was going down the highway at 72mph speed limit was 80. I felt my truck shift weird from 8th to 9th. Then once it hit 10th gear I watched it go to 1st gear then felt like it entered neutral. Shortly after it went back to 10th. Shortly after behind me it was smoking and it poured fluid from the transmission.
Incident date: Jun 8, 2026
I am reporting a recurring safety hazard involving my 2019 Kia Optima following a repair for diagnostic code P064A (Fuel Pump Control Module). Despite the dealership attempting to repair the fuel system, the vehicle remains in a 'limp mode' state. While driving, the vehicle began shaking violently and lost significant power, refusing to accelerate above 50 mph. This creates an immediate safety ris
... k, as the vehicle cannot maintain highway speeds or safely merge, increasing the danger of a rear-end collision. The P064A code and subsequent 'limp mode' symptoms persist even after professional service. I am concerned that the existing Kia warranty extensions (such as WTY028 for the low-pressure fuel pump) or current repair procedures are insufficient to resolve this underlying mechanical/electronic failure, leaving the vehicle unpredictable and hazardous to operate in traffic.Read more
Incident date: Jun 8, 2026
Recall on rear view cams and front dashboard connectivity is a continuous issue with the car and the dealership visits did not resolve the problem and recalls are still pending for want of spares and non availability of techs or some reasons by the dealer
Incident date: Jun 3, 2026
Unexpected braking at highway speeds. This has at least 50 times at highway speeds. The truck has experienced repeated false Forward Collision Alerts and un-commanded Automatic Emergency Braking events. Adaptive Cruise Control frequently detects roadside objects and vehicles in adjacent lanes, particularly on curves. The vehicle has never had windshield replacement, front-end damage, suspension m
... odifications, or aftermarket accessories. This is creating a safety hazard because the truck brakes unexpectedly in traffic at any speed.Read more
Incident date: Jun 3, 2026
Unexpected braking at highway speeds. This has at least 50 times at highway speeds. The truck has experienced repeated false Forward Collision Alerts and un-commanded Automatic Emergency Braking events. Adaptive Cruise Control frequently detects roadside objects and vehicles in adjacent lanes, particularly on curves. The vehicle has never had windshield replacement, front-end damage, suspension m
... odifications, or aftermarket accessories. This is creating a safety hazard because the truck brakes unexpectedly in traffic at any speed.Read more
Incident date: Apr 30, 2026
I am reaching out because recently I have been getting messages display on my dashboard of malfunction lights along with a check engine light currently my car has 27k miles I bought it brand new zero miles at the dealership of universal city nissan who closed down I have gotten my maintenance with the nearby certified nissan and kept up to date however this message only displays on startup and goe
... s away when I turn it back on I took it to the dealership for my oil change and a recent recall after the recall I got the messages and I took it back again and it appears my throttle position sensor to be reading 6% upon start up in which they said it means sticking upon start up and I have done my research nissan are doing recalls on this and it is exactly the symptoms I have now on my car I am very concerned because the dealership it trying to charge me and my car has been kept to date and all these recall issues are concerning me with the safety of my car. I wanted to reach out if I can get it fixed at the courtesy of Nissan since my vin is not listed but it is having the exact symptoms.Read more
Incident date: Apr 30, 2026
While driving my vehicle with my family, I experienced a sudden and dangerous loss of control. I was able to safely maneuver the vehicle off the roadway without injury. After inspection, it was determined that the subframe had fractured due to severe rust, which was not previously identified. The failure occurred without warning and directly impacted the ability to control the vehicle, creating a
... significant safety hazard. No warnings or messages indicated a problem existed prior to the failure.Read more
Incident date: Jun 8, 2026
The contact owns a 2021 Lincoln Aviator PHEV. The contact stated that while driving at an undisclosed speed, the contact noticed that there was an abnormal clicking sound coming from the front of the vehicle. The vehicle was taken to the dealer, where it was diagnosed with left and right lower control arm and right knuckle failures. The contact was informed that the left and right lower control a
... rms and the right knuckle needed to be replaced. The vehicle was taken to another independent mechanic, where it was diagnosed with driver's side upper knuckle and left control arm failures. The mechanic related the failures to an unknown recall and referred the contact to the dealer for repair. The vehicle was taken to the dealer, where it was repaired; however, the failure reoccurred. The vehicle was taken back to the dealer, where it was determined that the lower control arms had failed due to the driver's side knuckle failure. The Lincoln manufacturer was made aware of the failure and referred the contact to the Ford manufacturer. The failure mileage was 117,353.Read more
Incident date: Jun 8, 2026
A minor stone chip instantly escalated into a 12-inch crack that ran all the way to the edge of the glass. The factory acoustic glass is structurally weak and brittle, causing minor road debris to immediately result in a massive crack that compromises the glass integrity on the passenger side view.
Incident date: Jun 8, 2026
2017 Jeep Cherokee Trailhawk suffered a Power Transfer Unit failure leading to sudden motive power. Vehicle was pulled over to the side of the road with a narrow shoulder. Exiting the vehicle put driver at risk of being struck by traffic. Driver had to exit the vehicle via the passenger side leading to neck injury. Note Failure of have could have resulted in crash if it had happened earlier. PTU f
... ailure confirmed by dealership. Vehicle was under FCA recall O1C NHTSA 25V-011. It should be noted that even though this is a safety issue owners were not told not to drive vehicle, plus the remedy doesn't prevent PTU failure, which can happen without warning in certain conditions.Read more
1 injured
Incident date: Apr 28, 2026
The contact owns a 1999 GMC Sierra 1500. The contact stated that the ABS erroneously engaged at low speeds, and the tailgate was ajar due to a fractured hinge. The contact received the recall notification letter of NHTSA Campaign Numbers: 05V379000 (Service Brakes, Hydraulic) and 06V066000 (Structure). The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired. The co
... ntact was unsure why the vehicle was not repaired. The manufacturer was not contacted. The approximate failure mileage was 185,000.Read more
Incident date: Apr 28, 2026
The contact owns a 1999 GMC Sierra 1500. The contact stated that the ABS erroneously engaged at low speeds, and the tailgate was ajar due to a fractured hinge. The contact received the recall notification letter of NHTSA Campaign Numbers: 05V379000 (Service Brakes, Hydraulic) and 06V066000 (Structure). The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired. The co
... ntact was unsure why the vehicle was not repaired. The manufacturer was not contacted. The approximate failure mileage was 185,000.Read more
Incident date: Apr 28, 2026
UNKNOWN. Car has been making a humming noise for the last 4 years. I have taken it to multiple shops, and repair companies for inspection. Wheel bearings have been repaired 2x, ball joints, as well as sway bars. Tires have been replaced, breaks and rotors have been replaced. Noise still persisted. Noise has recently become louder, creating question when driving the car. Mechanic has determined tha
... t the noise is coming from inside the transmission. Upon inspection, the Internal Bearing has been failing. Due to Toyota's negligence, there is no official recall or plan to help car owners fix the problem.Read more
Incident date: Mar 25, 2025
Multiple lights on dash same time. Auto Hold, Fwd Collision, Adaptive Cruise and ABS. Code said ABS Module faulty. Multiple Safety System affected and rendered useless.
Incident date: May 30, 2026
On June 7, 2026, I was driving my 2020 GMC Terrain. I was going at about 40MPH along a very busy main road. While slowing for a red light the Check Engine Light turned on and the car displayed a notice about reduced engine power. Seconds later, the brake pedal became stuck and would not press down all the way and I lost braking ability. The car rattled/shook violently, made a grinding noise, and t
... hen the engine shut off and the car stopped abruptly, narrowly avoiding hitting the car in front of us. I turned on the hazard lights. I was not able to get the car to start again, nor was I able to get the car to shift into any other gear including neutral. We were nearly hit by other vehicles multiple times while attempting to get the car to move again, and to get myself and my child safely out of the road. Myself and multiple bystanders attempted to engage the transmission interlock override multiple time. We were eventually able to engage it and push the car to the side of the road. This failure created an extremely unsafe situation for all involved as this road is very busy and there were numerous near-collisions both with my disabled vehicle, and with other drivers serving out of the way and into other lanes at the last second. As time went on and the battery drained, most of the car's exterior lights turned off and other drivers had a hard time seeing my car. I used a strobe flashlight to alert other drivers but this required that I had to stand in the road near the vehicle. Police were called immediately when I found that we could not move the car out of the road, but they did not arrive. Ultimately the vehicle was stuck and inoperable in a travel lane for over two hours. The car was then towed to a nearby repair shop. The mechanic evaluation stated that the brake vacuum pump had failed resulting in loss of braking ability and expensive damage to the engine and other components. The manufacturer is aware of this issue. See: Thieme, et al. v. General Motors LLC.Read more
Incident date: Jun 7, 2026
Shift to park Malfunction again, 4 th time!! 1000$ to fix is ridiculous
Incident date: Jun 7, 2026
Shift to park Malfunction again, 4 th time!! 1000$ to fix is ridiculous
Incident date: Jun 7, 2026
The check engine light is on for periods of time and then goes off. Maybe the sensor is faulty?
Incident date: May 28, 2026
The contact owns a 2013 Dodge Dart. The contact received notification of NHTSA Campaign Number: 25V674000(POWER TRAIN); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.
Incident date: May 28, 2026
My 2024 Acura ZDX has an intermittent braking-related malfunction that causes the vehicle to jerk unexpectedly while slowing or stopping. The problem has occurred in stop-and-go traffic, on hills, and while reversing. The exact cause is UNKNOWN. This creates a serious safety risk because the vehicle does not always respond smoothly or predictably when braking. In traffic, the sudden jerking could
... cause a rear-end collision or make it difficult to maintain a safe stopping distance. On hills or while reversing, the unpredictable movement could cause the vehicle to strike another vehicle, pedestrian, cyclist, child, or object. The vehicle has also experienced unusually rapid battery depletion, raising concern that it could become disabled unexpectedly in traffic, severe weather, or an unsafe location. Any relationship between the battery issue and the braking problem is UNKNOWN. The vehicle has been taken to authorized Acura dealerships multiple times, including Acura of Westchester and Curry Acura. The condition was reported repeatedly. The dealers stated they could not duplicate it, even after an extended road test of more than 300 miles. No permanent diagnosis or repair was provided, and the problem remains unresolved. Acura/American Honda was notified and opened a corporate case. There were no consistent warning lights or dashboard messages before the incidents. Because the malfunction is intermittent and may occur without warning, I cannot predict when the vehicle will jerk or fail to stop smoothly. No crash or injury has occurred, but I believe this defect presents an unreasonable risk of collision and pedestrian injury. The vehicle is available for inspection upon request.Read more
Incident date: May 28, 2026
My 2024 Acura ZDX has an intermittent braking-related malfunction that causes the vehicle to jerk unexpectedly while slowing or stopping. The problem has occurred in stop-and-go traffic, on hills, and while reversing. The exact cause is UNKNOWN. This creates a serious safety risk because the vehicle does not always respond smoothly or predictably when braking. In traffic, the sudden jerking could
... cause a rear-end collision or make it difficult to maintain a safe stopping distance. On hills or while reversing, the unpredictable movement could cause the vehicle to strike another vehicle, pedestrian, cyclist, child, or object. The vehicle has also experienced unusually rapid battery depletion, raising concern that it could become disabled unexpectedly in traffic, severe weather, or an unsafe location. Any relationship between the battery issue and the braking problem is UNKNOWN. The vehicle has been taken to authorized Acura dealerships multiple times, including Acura of Westchester and Curry Acura. The condition was reported repeatedly. The dealers stated they could not duplicate it, even after an extended road test of more than 300 miles. No permanent diagnosis or repair was provided, and the problem remains unresolved. Acura/American Honda was notified and opened a corporate case. There were no consistent warning lights or dashboard messages before the incidents. Because the malfunction is intermittent and may occur without warning, I cannot predict when the vehicle will jerk or fail to stop smoothly. No crash or injury has occurred, but I believe this defect presents an unreasonable risk of collision and pedestrian injury. The vehicle is available for inspection upon request.Read more
Incident date: May 6, 2026
As I was traveling on the highway, the sunglasses holder opened and my sunglasses fell out and impaired my vision. FORTUNATELY, I was able to maintain control of the vehicle and the glasses did not fall to the floor and interfere with the gas or brake pedal operation. The sunglass holder latch does not operate properly and does not latch or stay closed. Called Toyota and was informed there were no
... other reports or TSP advisory, however encountered many similar incidents on. Reddit threads.Read more
Incident date: May 25, 2026
The entire digital instrument cluster, including the radio cluster has gone blank at least 5 or 6 time while the car is still driving. I feel that this is a safety issue and needs to be addressed. I am going to contact the dealership to see if they can figure out the problem.
Incident date: May 25, 2026
My electronic steering system is acting up, sometimes it is very hard to steer the truck, there are no lights on or warnings. I understand that a lot of ram 1500 trucks have this same safety issue!
Incident date: Mar 6, 2025
While driving at highway speed with adaptive cruise control The car put up a RED WARNING ACROSS MY ENTIRE SCREEN: SOS VEHICLE UNABLE TO DRIVE. SHUTTING DOWN.. The vehicle proceeded to shut down then it jerked and it started driving normally again. This incident occurred the day after software update
Incident date: Mar 6, 2025
While driving at highway speed with adaptive cruise control The car put up a RED WARNING ACROSS MY ENTIRE SCREEN: SOS VEHICLE UNABLE TO DRIVE. SHUTTING DOWN.. The vehicle proceeded to shut down then it jerked and it started driving normally again. This incident occurred the day after software update
Incident date: Jun 4, 2026
The seat doesn’t fully lock in and will shift while driving.
Incident date: May 19, 2026
Wipers do not spray correctly and it causes them to not property clear windshield and to cause pooling of washer fluid or other items which significantly limits driver visibility
Incident date: Jan 22, 2025
I took my car in for the 90,000 mile general service at the Volvo dealership. While rotating my tires the tech providing the service noted that the front left suspension fork was broken. The tech and Volvo were unable to provide an explanation for how the damage could have occurred. There was no other notable damage. The tire pressure light was on but that is baseline for my car (the tire pressure
... gauge is sensitive and usually turns on as soon as I adjust the tire pressure). I provided a picture of the suspension fork to a friend who works in the industry and they recommended reporting it. The part seems to have sheared and given that nothing around it is damaged, I believe and am concerned that this cast aluminum part had a manufacturing defect.Read more
Incident date: Jan 22, 2025
I took my car in for the 90,000 mile general service at the Volvo dealership. While rotating my tires the tech providing the service noted that the front left suspension fork was broken. The tech and Volvo were unable to provide an explanation for how the damage could have occurred. There was no other notable damage. The tire pressure light was on but that is baseline for my car (the tire pressure
... gauge is sensitive and usually turns on as soon as I adjust the tire pressure). I provided a picture of the suspension fork to a friend who works in the industry and they recommended reporting it. The part seems to have sheared and given that nothing around it is damaged, I believe and am concerned that this cast aluminum part had a manufacturing defect.Read more
Incident date: Jan 22, 2025
Driving car and suddenly all the lights on the dash light up and car goes into “limp” mode. Upon pulling over turning car off and turning back on lights are all still lit up. Plug car into obd2 scanner and car is showing code p0087 low fuel rail pressure. This is extremely dangerous as the car will randomly do this and will go into limp mode which can easily cause me to get into an accident. N
... o active recalls on this but I’m seeing this is a common issue with these Acura tlx models. Why hasn’t this issue been addressed yet Acura?! For reference I drive a 2018 Acura tlx base model 2.4 cylinderRead more
Incident date: Jun 1, 2026
My 2024 Chevy Malibu has lost power and is not shifting properly yet it’s not displaying any codes. It shifts and jerks very hard when on a cold start but also will not get up and go when I pull into traffic. This has caused me to almost get hit numerous times. It’s like it freezes and won’t go! The dealership could not recreate the problem (shocker), and since no codes they sent me away. Sa
... id last time it was due to the battery so I paid to replace that yet that did nothing to the engine/transmission problem. In addition to this issue, I think there’s an electrical issue. My rear view camera will often be distorted like I’m looking through a fish bowl and it has also come on while I’m driving on the freeway. I often lose my infotainment system too. It loses connection all the time and the screen goes black and disconnects from CarPlay. My onstar button will sometimes go red when this occurs but not all the time. Even when I lose the CarPlay, I can’t even get the Bluetooth to work. I purchased this vehicle used at 40k miles and my power train warranty will expire in less than 5k miles yet I can’t get any help with making it safe.Read more
Incident date: Jun 1, 2026
I have fighting this issue since January and have not gotten any help or relief from Chevrolet. This issue caused a significant safety risk and has cost me $12,000. I am writing to formally report a serious safety issue involving my 2021 Chevrolet Silverado that resulted in a sudden loss of power while merging onto an interstate highway. On XXX, I brought my vehicle in for service to replace the
... upper and lower ball joints, as well as the control arms. I retrieved the vehicle from the repair shop on XXX, and departed the same day for travel to [XXX]. Later that evening, while traveling southbound on [XXX] near [XXX], I stopped at Exit XXX. Upon re-entering the highway and accelerating to merge into traffic, the vehicle began shifting through gears abnormally. While in approximately 6th gear at around 2,900 RPM, a loud banging noise occurred, followed immediately by a significant loss of engine power. At the same time, the check engine light illuminated. Due to the sudden and unexpected loss of power while actively merging into highway traffic, I was nearly rear-ended by another vehicle. I was forced to take immediate evasive action and pull onto the shoulder to avoid a collision. This incident created a highly dangerous situation not only for myself but for surrounding motorists. This failure occurred without warning and directly impacted my ability to safely operate the vehicle in a high-speed traffic environment. I believe this presents a significant safety concern that warrants investigation. Please let me know if any additional information is required. I appreciate your attention to this matter and request that this incident be formally documented and reviewed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Jun 2, 2026
Vehicle will lurch on cold start up. This occurs while in park on a level surface.
Incident date: Jun 2, 2026
On 6/4, I completed a long road trip of over 650 miles. When I got back into my vehicle to move it to where it would be parked for the night, it displayed messages for a Powertrain Malfunction/Reduced Power and a High Voltage Battery Warning. I powered the car off and back on within about 5 minutes, and the messages were still being displayed. I connected a code scanner to the car and the car ha
... d stored codes P0D0F and P0AA4. Both of these codes indicated a fault with the High Voltage Battery Junction Box, a known issue with the Mustang Mach E. I was able to drive the car to a dealer the next day without incident but am wary of trusting the vehicle to make the same trip back home.Read more
Incident date: Jun 5, 2026
Upon taking hand off steering wheel car turns tires to the left all the way to the lock all by itself
Incident date: Jun 2, 2026
This is my wife’s car, I have already had to replace the evap hoses on this car twice due to faulty motor craft purge valves. I also replaced the charcoal canister before the second time I replaced the evap hoses so somewhere in the system there is a faulty part. Now at 80,000 miles my wife’s car is experiencing what many others are calling “shuddering”. How am I supposed to get anywher
... e in life when I just paid this car off and now I need a new transmission after I have done all services as specified by manufacturer.Read more
Incident date: Jun 2, 2026
I am filing a complaint regarding my 2021 GMC Yukon due to a serious engine failure involving the camshaft, lifters, and crankshaft. The vehicle began exhibiting engine ticking and knocking noises, rough idle, loss of power, and reduced performance. These symptoms progressively worsened and ultimately resulted in major engine damage. The vehicle was diagnosed with failed lifters and camshaft damag
... e, which required extensive repairs. In addition, the crankshaft failed, resulting in catastrophic engine damage and making the vehicle unsafe to operate. These are critical engine components that should not fail prematurely under normal driving and maintenance conditions. The most serious concern is safety. The engine's loss of power and deteriorating performance created the risk of sudden failure while driving. A vehicle that loses power in traffic, while merging, crossing intersections, or traveling at highway speeds can create a dangerous situation and increase the risk of a crash. Occupants and other motorists could be placed at risk if the engine fails without warning. My vehicle has been properly maintained and serviced. Despite regular maintenance, these major engine components failed unexpectedly. I am aware that other owners of GMC and Chevrolet vehicles equipped with similar engines have reported comparable camshaft and lifter failures, suggesting a potential defect rather than an isolated incident. The failure resulted in significant repair costs, loss of vehicle use, and concerns about the long-term reliability and safety of the vehicle. I believe these engine failures may indicate a manufacturing or design defect affecting 2021 GMC Yukon vehicles. I respectfully request that NHTSA investigate camshaft, lifter, and crankshaft failures in the 2021 GMC Yukon and determine whether a safety-related defect exists that warrants corrective action or a recall.Read more
Incident date: Jun 3, 2026
On November 20, 2025, my 2022 GMC Sierra 1500 AT4 equipped with the 3.0L Duramax diesel engine began experiencing intermittent engine overheating conditions. Concerned about a potential safety issue, I contacted a GMC dealership and was advised that because no diagnostic trouble codes were present, there was nothing to diagnose or repair and that I should continue driving the vehicle. Over the fol
... lowing months, the overheating condition continued intermittently. On May 24, 2026, while driving on the highway, the vehicle suddenly overheated, displayed fault code P1098, and entered reduced power ("limp mode"). The vehicle lost normal performance and acceleration while traveling in traffic. This created a significant safety hazard because the vehicle was unable to maintain normal highway speeds, increasing the risk of a rear-end collision or other traffic accident. The loss of power occurred while driving and without sufficient warning, leaving the vehicle unable to safely perform as expected in highway traffic. After researching this issue, I found numerous reports from other GMC and Chevrolet owners describing similar overheating, coolant control valve, thermal management system, and P1098-related failures. Many owners report symptoms involving engine overheating, reduced engine power, and limp mode operation while driving. I am concerned that this may indicate a broader defect involving the vehicle's cooling system and thermal management components. The vehicle exhibited overheating symptoms for approximately six months before the final failure occurred. Additionally, I understand that certain GM vehicles have been subject to service actions involving coolant control valves and thermal management system components. Given the similarity of symptoms, I am concerned that the overheating condition reported in November 2025 may be related to the same type of failure mechanism, yet my vehicle has not been included in any recall or special coverage program.Read more
Incident date: May 21, 2026
Recently, the 2022 Outback my mom drives has been having some strange electrical issues. About a year-or-so ago the battery in her outback died. Not unusual in Arizona. I replaced it with an upgraded AGM (Interstate) version—same group, same cranking power. No issues. Recently, after an oil change at the dealer, she called back to report that a “Check Engine” light had come on. She was told
... that she probably had not put the gas cap on properly. Gas cap was on properly; light went off the next day. A few days later the Auto Stop/Start (ASS) feature started acting up (not functioning). A few days later the ASS turned the engine off and did not restart automatically—in the middle of heavy traffic during rush hour. The ASS light came on. The engine started manually, and we got it home. Battery was dead the next morning. I charged it up and took the car to the local mechanic for a quick assessment. The battery was fine, charging, but the car threw a Code: P0871 Transmission Fluid Pressure Sensor Switch. This mechanic told us that there was a Technical Service bulletin through Subaru that addressed this issue but was also aware that it could be caused by the ASS killing the battery OR other electronic modules which fail to enter sleep mode—which would also cause random lights to come on. An appointment was made to take the car into Peoria Subaru, thinking it would be something they could diagnose easily. It had previously been in for the routine oil change with the inspection. When we dropped the car off, I provided the Advisor the code and a associated TSB for the code. We got the car back that day and were told the following: The tech found that the car currently has a “Aftermarket” AGM battery. Subarus require a “Enhanced Flooded Battery” which would explain multiple codes found for loss of communications and parasitic battery drain--for systems that don't go to "sleep" when the car is not running.Read more