Showing 153,608 complaints for DODGE
Incident date: Sep 27, 2023
Water has been leaking on my passenger side front floor, and now the blower motor has completely seized. Ford quoted me over $1,000 for a blower motor! I have requested asking for satisfaction warranty for this to be covered via email, with no response. Blower motors should not go bad this soon. I have no way to defrost or defog my windows. This is a major safety concern
Incident date: Jul 13, 2025
While driving on interstate, red turtle indicator came on and engine shut down.
Incident date: Jul 13, 2025
Since I have bought this used vehicle in September 2024, it has been shutting off completely with having to restart the engine. There was a recall for the battery in January 2025 that was finally approved to be replaced maybe in May or so. Battery was replaced but it keeps shutting off. I just took it in July 7 for the fuel pump to be replaced as they said that was the final cause. I drove it home
... the same day when it was finished and it has been shutting off still. It has shut off while I have been at the light, in reverse and as well as putting my vehicle into reverse by itself which could cause an accident. This situation has since be unresolved. I have taken it to the ford dealership with them many times with them saying there is nothing wrong with it.Read more
Incident date: Jul 13, 2025
Since I have bought this used vehicle in September 2024, it has been shutting off completely with having to restart the engine. There was a recall for the battery in January 2025 that was finally approved to be replaced maybe in May or so. Battery was replaced but it keeps shutting off. I just took it in July 7 for the fuel pump to be replaced as they said that was the final cause. I drove it home
... the same day when it was finished and it has been shutting off still. It has shut off while I have been at the light, in reverse and as well as putting my vehicle into reverse by itself which could cause an accident. This situation has since be unresolved. I have taken it to the ford dealership with them many times with them saying there is nothing wrong with it.Read more
Incident date: Jul 11, 2025
I started the car, put it into gear and then the breaks wouldn’t work. The car dash said something like check breaks hybrid system failure do not drive. There is not recall on my car but the Hyundai service department doesn’t know how to fix it. This is the second time it’s happened. I’m scared to drive it. Please investigate!
Incident date: Jul 12, 2025
System keeps saying that I am not watching the road, which I am. No eye glasses or sunglasses on. This causes the cruise control to suddenly disengage creating a safety hazard. SUV is up to date on software/firmware.
Incident date: Jul 12, 2025
Shifting shudder
Incident date: May 9, 2025
For the last six months (since Dec. 2024) my jeep has randomly stalled out at traffic lights or won’t restart immediately after having just driven it. Sometimes when it stalls out while driving into a traffic light it will restart without a jump but then the check engine light is on for a few drives then eventually turns off. This happens once or twice a month and typically requires a jump to g
... et the car started. I have had the battery, alternator and started checked multiple times. A jeep dealership has reviewed and could find no issues with the car. The safety issue is being stalled out at a light or anywhere on the road randomly puts myself, my passengers and other drivers at riskRead more
Incident date: Jul 3, 2025
On [XXX], the infotainment head unit (IHU) crashed and rebooted during driving. As a result of the IHU crashing, the rear and surrounding camera visualizations were unavailable for several minutes, limiting my view. The vehicle was on software version 3.6.4, the latest available version. As a result, the vehicle may have a non-compliance with the requirements of both the Federal Motor Vehicle Safe
... ty Standards (FMVSS) 111 in the US and the Canadian Motor Vehicle Safety Standards (CMVSS) 111 in Canada. This vehicle is available for inspection upon request and has a service request booked in the coming weeks for an unrelated issue. The vehicle has not been inspected by anyone in regards to this issue. No warnings, messages, or other symptoms were present prior to failure. This is the second time this has occurred, with the first time being months ago on a prior software version. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Jul 10, 2025
Coolant intrusion into cylinder 1, low coolant and Engine DTC P0301. Multiple TSB's by Ford recommend engine replacement as a remedy for the Cylinder head - open deck cooling problem. Customer Satisfaction Program 21N12 addresses this problem in similar cars/engines. Has this been expanded to cover this vehicle with the same 2.0L engine? From Ford TSB 19-2346 "Issue: Some 2015-2018 Edge and
... 2017-2019 Fusion/MKZ/Escape/MKC vehicles equipped with a 2.0L EcoBoost engine may exhibit a low coolant level, white exhaust smoke and/or a runs rough condition with or without an illuminated malfunction indicator lamp (MIL). Diagnostic trouble codes (DTCs) may include P0300, P0301-P0304, P0316, P0217, P1285 and/or P1299 stored in powertrain control module (PCM). This may be due to coolant intrusion into the cylinder. To correct the condition, follow the Service Procedure steps to replace the long block engine assembly."Read more
Incident date: Apr 24, 2025
The contact owns a 2021 Chevrolet Malibu. The contact stated that upon arriving to her destination and shifting the vehicle into park, the message "Shift to Park" was displayed with the gear shifter already in park(P). The contact was able to turn off the vehicle however, the electrical features remained operable. The contact stated that after several attempts, the vehicle returned to normal funct
... ionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 54,000.Read more
Incident date: Apr 24, 2025
The contact owns a 2015 Jeep Cherokee. The contact stated that while the vehicle was parked, the contact stated that the power liftgate became inoperable when the contact attempted to engage the power liftgate. The contact had to enter the vehicle and manually opened the power liftgate. The contact received notification of NHTSA Campaign Number: 23V338000 (Electrical System, Structure); however,
... the part to do the recall repair was unavailable. The vehicle was taken to the dealer, where it was diagnosed and determined that the power liftgate module had failed and needed to be replaced. The vehicle was not repaired, and the dealer confirmed that parts were not yet available. The manufacturer was made aware of the failure. The approximate failure mileage was 102,000. Parts distribution disconnect.Read more
Incident date: Jul 11, 2025
Rear view camera does not work. Even after the “safety recall” update it is actually worse. Side view cameras never open up when they fold in after parking snd rentry to drive
Incident date: Jul 11, 2025
Backpack camera goes out, is distorted or unavailable. Vehicle has been to the local dealership twice for repair but still does not work.
Incident date: Jul 11, 2025
I presently have 92,200 miles on my Doge Ram. I have experienced 3 fuel pump/fuel sender failures. The first at 18,947 miles, second at 43,634 miles and third at 92,263.This last fuel pump replacement will have the defective pump available for inspection after the repair work is done. The failure of a fuel pump/sender could lead to stalling, power loss and failure to start. These deficiencies coul
... d lead to traffic accidents resulting in property loss and bodily harm or even death. The warnings persisted until I had the parts replaced. Because of the number of times (3)and the low mileage , 18k,43k and 92k miles, it appears that the fuel pumps used in this model of Dodge Ram are either defective or inadequately engineered. These failures were preceded by and check engine warning light followed by a fuel sensor failure light and fuel gauge malfunction.Read more
Incident date: Apr 15, 2025
I've been having a few issues with my 2025 Calligraphy Hybrid I bought in November related to the main screen, sometimes when I start the vehicle it doesn't properly initialize and it will show me some of the icons and nothing else. No HUD, no speedometer, no remaining fuel, no hybrid information. It's a huge safety issue, it seems to happen every couple of weeks. I thought it was the digital key
... not working properly so I disabled that but still having issues. I have to let the car sit for a few hours or overnight and then when i turn it on then it's back to normal. I realized that when the main screen is off, it doesn't capture the mileage so the mileage is off by close to 300 miles right now. Huge issue, I've had it happen on my way home from work (25 miles) at least 4 times, and once on a road trip (150 miles). Also when this happens because I can't see the speedometer, I have to use Waze on the infotainment screen (which works without issue) to see my actual speed because the built-in navigation only shows me increments of 10 mph on the screen (this is just stupid).Read more
Incident date: Apr 15, 2025
The contact owned a 2023 Ford F-150. The contact stated that while driving at an undisclosed speed, the vehicle accelerated unintendedly and the front passenger side of the vehicle crashed into a tree. No warning lights were illuminated prior to the failure. The air bags were not deployed. No injuries were sustained and no medical attention was sought. A police report was filed. The vehicle was to
... wed to a dealer where it was diagnosed that the vehicle was totaled; the failure cause was unknown. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 22,000. Read more
Crash
Incident date: Apr 15, 2025
At 49,000 miles, all four spark plugs and ignition coils failed and had to be replaced due to engine stuttering and hesitation during acceleration. The check engine light first appeared as I approached a red light to make a timed left turn at a high-traffic intersection during rush hour. The malfunction caused my vehicle to struggle accelerating through the intersection, putting myself and others
... at risk. A certified mechanic confirmed the error code indicating faulty spark plugs and coils and replaced all components under warranty. However, the check engine light continued to reappear intermittently—sometimes turning off for a week after restarting the engine, other times staying on for extended periods. Despite the initial replacement, the same code concern persisted, and the mechanic replaced the components again under the parts and labor warranty. When the issue continued, I took my vehicle to my regular trusted mechanic, who performed a more in-depth diagnostic. They discovered an excessive and unusual amount of carbon buildup in the fuel injectors, which was likely triggering the engine code and causing drivability issues. This diagnosis resulted in an additional repair expense of nearly $700. The vehicle has not been inspected by the manufacturer, police, or insurance representatives, but the failed components are available for inspection upon request. These issues are unexpected given the vehicle's low mileage, age, and regular maintenance. Total repairs reached nearly $1,300. The hesitation posed a safety risk in traffic and suggests a possible premature system failure. My regular mechanic noted Volkswagen may claim this is “regular maintenance,” though this is not common in similar makes and models like the Tiguan.Read more
Incident date: Apr 15, 2025
At 49,000 miles, all four spark plugs and ignition coils failed and had to be replaced due to engine stuttering and hesitation during acceleration. The check engine light first appeared as I approached a red light to make a timed left turn at a high-traffic intersection during rush hour. The malfunction caused my vehicle to struggle accelerating through the intersection, putting myself and others
... at risk. A certified mechanic confirmed the error code indicating faulty spark plugs and coils and replaced all components under warranty. However, the check engine light continued to reappear intermittently—sometimes turning off for a week after restarting the engine, other times staying on for extended periods. Despite the initial replacement, the same code concern persisted, and the mechanic replaced the components again under the parts and labor warranty. When the issue continued, I took my vehicle to my regular trusted mechanic, who performed a more in-depth diagnostic. They discovered an excessive and unusual amount of carbon buildup in the fuel injectors, which was likely triggering the engine code and causing drivability issues. This diagnosis resulted in an additional repair expense of nearly $700. The vehicle has not been inspected by the manufacturer, police, or insurance representatives, but the failed components are available for inspection upon request. These issues are unexpected given the vehicle's low mileage, age, and regular maintenance. Total repairs reached nearly $1,300. The hesitation posed a safety risk in traffic and suggests a possible premature system failure. My regular mechanic noted Volkswagen may claim this is “regular maintenance,” though this is not common in similar makes and models like the Tiguan.Read more
Incident date: Apr 15, 2025
At 49,000 miles, all four spark plugs and ignition coils failed and had to be replaced due to engine stuttering and hesitation during acceleration. The check engine light first appeared as I approached a red light to make a timed left turn at a high-traffic intersection during rush hour. The malfunction caused my vehicle to struggle accelerating through the intersection, putting myself and others
... at risk. A certified mechanic confirmed the error code indicating faulty spark plugs and coils and replaced all components under warranty. However, the check engine light continued to reappear intermittently—sometimes turning off for a week after restarting the engine, other times staying on for extended periods. Despite the initial replacement, the same code concern persisted, and the mechanic replaced the components again under the parts and labor warranty. When the issue continued, I took my vehicle to my regular trusted mechanic, who performed a more in-depth diagnostic. They discovered an excessive and unusual amount of carbon buildup in the fuel injectors, which was likely triggering the engine code and causing drivability issues. This diagnosis resulted in an additional repair expense of nearly $700. The vehicle has not been inspected by the manufacturer, police, or insurance representatives, but the failed components are available for inspection upon request. These issues are unexpected given the vehicle's low mileage, age, and regular maintenance. Total repairs reached nearly $1,300. The hesitation posed a safety risk in traffic and suggests a possible premature system failure. My regular mechanic noted Volkswagen may claim this is “regular maintenance,” though this is not common in similar makes and models like the Tiguan.Read more
Incident date: Apr 15, 2025
2017 GMC Sierra almost hit a parked car in the store parking lot. Pedal was hard push down . Also when moving truck around in my yard at times the pedal is hard other times sounds like there is Air in the lines. Truck has all new Brakes and Rotors all the way around. I pull a Camper and Side x Side at times so this is scary.
Incident date: Mar 6, 2024
Component/System Failed: Power Train – specifically, the #6 lifter failed and is available for inspection upon request. Safety Risk: The failure caused noticeable engine misfiring, loss of power, and abnormal ticking sounds, which could potentially lead to engine stalling while driving. This creates a serious safety risk, especially during highway driving or merging situations. Confirmation of
... Problem: The issue was confirmed by a certified GM dealership technician, who diagnosed the failure of the #6 lifter. They advised that the lifter and potentially the camshaft need replacement. Inspection: The vehicle has been inspected by the dealership service department. No inspection has been conducted by police or insurance at this time. Warning Signs: Prior to failure, there were no warning lamps. However, the vehicle began exhibiting a noticeable ticking noise followed by rough idling and reduced performance approximately 71,000 miles.Read more
Incident date: Mar 6, 2024
The contact owns a 2018 Honda Pilot. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the issue had prevented her from renewing
... the vehicle registration in the State of California. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.Read more
Incident date: Mar 6, 2024
With no previous problems, over the course of the past two days the transmission has begun to hard and delayed shift in multiple gears between 10 to 75 mph. When slowing down to go through tolls this morning, as I accelerated, there was a sudden loss of power transmission and a loud rattling sound. The engine would rev in this case. I had to coast for about 150 ft before I regained control of my s
... peed. Once I was slowing down to take my exit to get to work and wait at the light, when I attempted to accelerate to go through the light, I experienced another loss of power. However, this time the engine would not rev. Once in the intersection I was moving slowly. Had this happened (loss of power) while I was in the intersection or through the toll and someone was behind me accelerating, I could have been rear ended and injured. I am taking the Explorer to the dealership next Tuesday to find out if they can reproduce the issue. There are no warning lamps associated with this problem. The vehicle has not been inspected by any third party yet.Read more
Incident date: Jul 10, 2025
When attempting to move forward from a stop, there is a momentary delay in the truck responding to stepping on the accelerator pedal. This is a real safety concern when attempting to pull into traffic, as the "dead spot" in the pedal occurs after the truck has already moved forward a few feet, leaving the front end of the truck out in the traffic lane. It appears to be related to the automatic t
... ransmission starting in 4th gear, as I can move the shift lever to manual shifting mode and start out in 2nd gear with no hesitation. Once moving I simply move back to Drive mode. This has been an ongoing concern, reported from the first service (10k) on my truck, which now has 45k miles. I received the remedy engine at 37k miles under the safety recall. Toyota seems to be aware of the issue, as they flashed the TCM once, which seemed to help briefly, however the problem quickly returned. I am not the only Tundra owner reporting this issue.Read more
Incident date: Jul 6, 2025
The contact owns a 2018 Nissan Kicks. The contact stated that while driving at various speeds, the vehicle occasionally experienced reduction in automotive power with the "System Malfunction" message displayed. There was no warning light illuminated. The contact stated that the battery had been replaced twice however, the failure persisted. The vehicle was taken to a local dealer where the vehicle
... was diagnosed, and the contact was informed that no cause for the failure was found. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 100,000.Read more
Incident date: Jul 7, 2025
Was inspected @ my local garage. The tipm goes out and you lose turn signals, wipers, transfer case control ( locks in low gear) causes airbag light to go on. And Chrysler does not manufacture them anymore. Jeep had to be towed.
Incident date: May 15, 2025
I believe my vehicle is impacted by the Honda/Acura related to recall 23V751000(Engine Damage from Connecting Rod Bearing Wear A damaged engine may run improperly or stall while driving). Ticking noise in engine. 2017 Honda Pilot 40,028 miles on it. Dealership has advised that this is not part of the VIN recall, the connecting rod bearing is spun and I now need to replace the engine.
Incident date: May 15, 2025
The rear passenger side suspension spring coil broke while driving. The possibility of this failure puncturing a tire, dislodging from the vehicle into traffic, or causing control/stability issues of the vehicle is significant. The vehicle has been towed and is sitting until a fix is determined. No warnings were given before the incident. It happened on a smooth, flat, straight road at the time o
... f occurrence.Read more
Incident date: May 15, 2025
Why is/was there no investigation in to the torque converters in these vehicles? I have the 5.3L V8. Took it to a tranny shop and he has five on his lot, same transmission same generation all same issue. He says they start eating themselves and he has a few with only five digit mileage that he still needs to fix. A guy in my firehouse is a parts manager for a Chevy dealership and knows the part nu
... mber for the transmission off the top of his head because they fly through them and he has 19 in stock. Luckily I'm a good driver and when the transmission gave out on the highway I was able to control and get over without my kids getting hurt. But that is two shops confirming this is an issue. It's a safety issue. An expensive safety issue. There's even a tranny guy on Facebook that says the same thing because these are mostly all he works on. I'm a bit shocked you all allowed this to pass through. Granted the shop said the American made parts in the torque converters are the ones failing, so it would look bad. But my kids could have been hurt if my wife was driving and couldn't control the truck. This is an epic failure. Five digit mileage trucks coming in for the same issue. He told me to keep up whatever maintenance I'm doing because coming in at 130k is the second highest he has seen.Read more
Incident date: Jul 8, 2025
The contact owns a 2015 Ford Escape. The contact stated that while operating the vehicle, the check engine warning light remained illumined. The vehicle was taken to the local dealer who diagnosed that there was coolant intrusion into the engine, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The fail
... ure mileage was 64,140.Read more
Incident date: Jan 21, 2024
The contact owns a 2023 Harley-Davidson FLHCS. The contact received notification of NHTSA Campaign Number: 25V375000 (Suspension); however, the part to do the recall repair was not yet available. The local dealer was contacted. 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. Parts distribution disconnect.Read more
Incident date: Jul 6, 2023
Starting early 2025 with no changes or modifications or warning - the MMI system in my 2020 Audi A5 began spontanously rebooting. It appears to be rebooting regardless use or radio, CarPlay, or nothing - even after the recent factory reset. Reboots appear to occur at random - sometimes once in 40 mins, or every 3-4 mins. After some research, it appears other similar 2020 cars have recently started
... experiencing the similar symptoms something this year in 2025. Sudden loss of navigation aid, parking and warning collision, etc have almost resulted in crashes. It was inspected at a dealer, who did not note any other open issues. I suspect there must be a change in how Audi forces the car to call back to their service that resulted in software reboots.Read more
Incident date: Jul 6, 2023
Starting early 2025 with no changes or modifications or warning - the MMI system in my 2020 Audi A5 began spontanously rebooting. It appears to be rebooting regardless use or radio, CarPlay, or nothing - even after the recent factory reset. Reboots appear to occur at random - sometimes once in 40 mins, or every 3-4 mins. After some research, it appears other similar 2020 cars have recently started
... experiencing the similar symptoms something this year in 2025. Sudden loss of navigation aid, parking and warning collision, etc have almost resulted in crashes. It was inspected at a dealer, who did not note any other open issues. I suspect there must be a change in how Audi forces the car to call back to their service that resulted in software reboots.Read more
Incident date: Jul 6, 2023
After applying manufacturer’s recall fix for “rear camera temporarily unavailable,” rear backup camera continues to be inoperative at times. Update 3.6.4 was applied by the dealer. This is most recent upgrade that was to correct this problem. Error has occurred several times but intermittent since update.
Incident date: Jul 1, 2025
Driver's side sliding door stays locked and will not open it also prevents me to lock the passenger side sliding door
Incident date: Jul 1, 2025
Driver's side sliding door stays locked and will not open it also prevents me to lock the passenger side sliding door
Incident date: Jul 1, 2025
Driver's side sliding door stays locked and will not open it also prevents me to lock the passenger side sliding door
Incident date: May 26, 2025
The 2 A pillar molding in the front flew off while driving on the highway and the 2 rear pillar moldings in the back are loose. It is available for inspection. This is an EXTREME safety concern as I was going high speeds and part of my car detached - I am thankful that it did not hit the cars near me but that doesn't mean that when I get it replaced with the faulty issue, that the new ones will
... not fall off. The problem has been confirmed by the dealer. There was no warning that the parts were falling off. The car has zero body damage and has never been in a wreck before. This is a KNOWN issue with the maxima and I am disappointed that nissian knows about this, has a service bulletin (Classification: BT19-011a; Ref: NTB19-079a) on how to fix this KNOWN issue but the manufacturer refuses to take any accountability for their poor design flaws leading to a major safety concern.Read more
Incident date: Jun 20, 2025
TRANSMISSION DOWNSHIFTS WHILE DRIVING TRANSMISSION STAYS IN FIRST GEAR TRANSMISSION BANGS WRENCH APPEARS ON DASH ALL CONTROL IS LOST
Incident date: Jun 24, 2025
I began noticing the illuminated instrument cluster indicating that I was in drive, flash from drive, to manual, and my truck began changing gears. Truck wouldn’t start after so I changed the battery. A few days later it was driving fine then the lights began to flash once again. My rear wheels seemed to lock up while I was driving about 50 mph, I believe it shifted into first gear and the truck
... jolted forward. I received a “wrench” icon that stated to “see manual”. Truck began driving fine once again. I contacted 4 local Ford dealerships and all claimed they have never heard of anything like this.Read more
Incident date: Jun 16, 2025
My car is burning oil like crazy. I’ve had to put 2 quarts in one week. Took it to dealership because of warranty. They ran an oil consumption test and told me pistons may be bad drive it another 1000 miles then we check it again. Why not fix problems then. So I have to check my oil every day until they want to do the work I guess
Incident date: Jul 7, 2025
On 7/5 car's cameras (all of them) went off again when and Camera Not Available message displayed on console. We had already gotten the NHTSA required software upgrade on 7/2 that was to correct this problem. Once the vehicle was turned off - and started again -- the cameras worked. But it's anyone's guess how long that will last. I called the dealership and they reported that "about two other
... vehicles" that had the recall and had their software upgraded also came back in with the same complaint. There's no remedy yet from Volvo. Just wanted you to know their "fix" in response to you is not really a "fix."Read more
Incident date: May 9, 2025
The contact called about failures with 2024 Jaguar I-Pace vehicles. The contact stated that on four separate occasion had experienced failures with Waymo powered Jaguar vehicles. The contact stated that while exiting a one-way circle, a Waymo vehicle started driving towards her vehicle in the wrong direction. The Waymo vehicle eventually stopped right before crashing into the bumper of the contact
... 's vehicle. The contact then stated that the Waymo reversed independently and parked in the corner of the circle. The contact stated that in another incident, a Waymo vehicle failed to stop at a 4-way intersection and drove through stop sign. In addition, the contact stated that while driving in her lane at a slow speed, a Waymo vehicle entered the contact's lane and cut the contact off. Additionally, the contact stated that while driving at a moderate rate of speed, another Waymo vehicle stopped far beyond the stop sign line and was in the contact's lane. The contact was forced to drive around the Waymo vehicle to avoid crashing into the vehicle. The contact expressed grave concerns about these vehicles and believed that these vehicles were a danger to public safety.Read more
Incident date: Jun 29, 2025
Coolant leak
Incident date: Jul 3, 2025
There is a safety recall but it has not yet been resolved, risking lives.
Incident date: Jul 3, 2025
There is a safety recall but it has not yet been resolved, risking lives.
Incident date: Jul 3, 2025
Driver side door handle broken. Spring came loose when opening door. Dash has permanent alert showing door open when closed.
Incident date: Jul 3, 2025
The cooling fan is defective and is causing the vehicle to overheat major safety concern for my family .
Incident date: Jul 3, 2025
Electrical problems with the power steering. Shifting and RPM’s transmission