While traveling at highway speeds in a very congested and busy segment near Virginia Beach Virginia the truck began shifting erratically and suddenly lost power which required me to cross two lanes of traffic 30 miles an hour below the speed limit to get to the shoulder. Cars were swerving everywhere to miss us with this sudden loss of power and speed. The truck has been towed and now at the dealer where it has been diagnosed with a stuck/failed pressure control solenoid and the valve body must be replaced which is apparently on back order due to the high number of failures on the GM 10speed transmissions. Such a sudden loss of power and the reduced power mode of the software made the situation extremely dangerous at highway speeds in congested traffic. Something should be done quickly to get these vehicles off the road until a suitable fix is resolved as someone is going to get killed.
2022 GMC Sierra 1500 transmission complaints
Page 4 of 5: complaints 71 to 100 of 116, newest first, as owners wrote them.
I bought the truck 3.5 months ago with 66,000 miles with a recall (reprogramming) on the transmission already done according to the dealer. Then yesterday on 6/25 the truck stuttered then shifted hard. When I got to my destination it didn’t have reverse. But no warning lights. So I drove it to the dealer and before I got there it did it again and sent the truck into a power loss mode this time with a warning light. And would barely finish going up the hill with cars behind me. Now they are saying it needs a transmission but gm is only offering to pay half. Also saying the diesel would be covered but my gas isn’t even though I’m pretty sure they are the same transmission makes no sense. Lastly shouldn’t them offering to pay %50 show that they know they have a problem
I was on the way to the airport and my vehicle suddenly went into reduced power mode and had trouble shifting into gear. I pulled over, shut off my truck, and turned it back on only to have the problem continue. I was able to turn around and make it home, but the vehicle would then not shift into reverse. We had to push the vehicle so that I could position it in the street. Once we were back from vacation, I took it to a GM Certified Service location (my local Cadillac dealership). After review, they diagnosed a defective valve body and the engine recall. I’ve been informed as of today that my valve body will be $3,000 and GM will not cover it because I have more than 60k miles on the truck (it has 72k). After research, this is a common issue and it is ridiculous that GM will not escalate the issue and help consumers with this clear problem due to their manufacturing and/or design. The vehicle is currently sitting at the dealer waiting for a back ordered valve body and I have had to go out of pocket to rent a vehicle. Every service for the vehicle has been completed at a GM Certified Service location. It is available for inspection immediately, if required.
The contact owns a 2022 GMC Sierra 1500. The contact stated while driving at approximately 65 MPH, the vehicle was losing motive power. The contact stated that the message to “Pull Over" had flashed on the instrument cluster. The contact pulled over and turned off the vehicle. The contact waited for approximately 20 minutes and then restarted the vehicle. The contact was able to resume driving. The contact stated that later the failure reoccurred, with the check engine warning light illuminated. The contact pulled over and had the vehicle towed to a local dealer. The dealer diagnosed the vehicle and determined that a sensor in the transmission had failed and needed to be replaced. The vehicle was repaired. The contact stated that the failure reoccurred, the vehicle lost motive power, and the check engine warning light illuminated. The contact returned the vehicle to the same dealer who diagnosed the vehicle and determined that the transmission needed to be replaced. The vehicle was repaired; however, the contact stated that the failure reoccurred. The vehicle was towed back to the same dealer. The dealer had not yet diagnosed the vehicle but advised the contact that the transmission had failed. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 31,000.
While driving on the freeway, my truck suddenly experienced a severe and unexpected downshift into first gear at highway speeds. Dashboard warning lights immediately illuminated, indicating multiple system faults. I was able to safely pull over and shift the vehicle into park. However, after doing so, the truck completely refused to engage drive or any other gear. This abrupt and uncommanded downshift posed a serious safety risk, not only to myself but to other drivers, due to the potential for loss of vehicle control. The vehicle had to be towed from the scene. It has now been at the dealership for over two and a half months, with no clear timeline for repair or resolution. This incident raises major concerns about the reliability and safety of the transmission system, particularly under high-speed conditions.
The coolant control valve is defective and the part is on back order with GM and dealer can’t tell me when part will be available because General Motors doesn’t know. Dealer has had my vehicle for three weeks and because of GM can’t tell me anything new.
While driving on the highway at 75mph, the engine stopped responding to the cruise control speed it was set to. The vehicle started to slowly lose speed and the shifting was not normal causing the engine to rev from below 2000 RPMs to about 3500 RPMs, at this point the engine stopped producing power, the transmission was shifted to Neutral by itself, and the check engine light illuminated. While I was able to move to the shoulder and put my hazard lights on, this could've caused an accident in a more congested area. No one was harmed or any accidents occurred. The truck would no longer start, at this point GMC ONStar was called and they provided a tow truck to the nearest GMC dealership. While waiting for the tow truck, I decided to read the codes for the check engine light, P0016 and P0011 codes were populated. The codes were provided to the dealership. The dealership has since then confirmed the engine is seized and a new one will need to be installed. Model of the engine is the GM 6.2L, which currently has an open recall against it for the crankshaft manufacturing defects.
Control Valve Engine Coolant which is a well known issue with back orders taking months for the part and GMC not acknowledging responsibility and having loyal customers pay out of pocket.
The engine gave out without warning while driving on the highway at 70 miles per hour on April 11th 2025. Upon towing the vehicle to the local GM dealership, I was told the motor had blown and needed a full replacement. One week after, the recall comes out. I bought the truck used in 2023. I called the dealership I originally bought the truck from to ask about any past problems and was told this same incident happened to the original owner of the vehicle before it hit five thousand miles.
Complete transmission failure without warning, resulting in loss of power. Vehicle has been maintained meticulously by the book. There were no warning lights or CEL before or during failure.
Power loss at lower gearing speeds and also separator loss of motion when applying gas to make truck move after complete stops. Also blind spot monitoring glitch saying vehicles are beside randomly when no traffic nearby issue to safety by drivability problems and safety components effecting correct monitoring of surroundings.check engine light also has been on more then 2 - 5 times dealer always stating due to sensors in driving components.has been inspected numerous times for similar issues with check engine lights and drive ability issues with loading power random times unsure of where problem exactly resides. Main vehicle for transportation for infant cannot have safety or mechanical issues u resolved but GMC has not corrected this problem at this time and when taking to dealership they asking for charges for inspection of power issues.
My camshaft failed only 1.8 years into having my brand new truck. GMC dealership repaired it so not sure if they have the part. My truck wouldn’t drive right causing everyone to be at risk. No warnings at all! I take very good care of my truck and the moment a light comes on I get it investigated. This repair was over 15000$ out of my pocket and they had to replace the engine entirely.
While stopped at a light at a busy intersection the truck wouldn’t drive. There were no prior indications to there be an issue, no noises, no check engine lights. The intersection is a multiple lane route with high speed and traffic with rear end collision possible. The truck was determined to have a blown motor.
On [XXX] while driving 80mph on Westbound [XXX] , just West of the [XXX] exit, my engine simply quit. I was able to navigate it to the side of the highway to avoid traffic. However I could not restart the engine or subsequently get it out of Park gear. I got a notice "Conditions Not Correct for Shift." I was forced to use Onstar to get the truck towed back to the original dealership, Quebedeaux Buick/GMC in Tucson, Arizona. The next day, Monday, I went to the dealership to find out what happened to my truck. They said they would call me with results. They never did. The next day, Tuesday, I still hadn't received a call. I returned to the dealership to ask what had happened. They informed me the engine had thrown a bearing and it would need a total engine replacement. It would take 1-2 months. I'm now on day 4 of not having a vehicle, I've called the dealership every day to try to get a loaner vehicle, and they keep telling me they're working on it. The truck only has 36k miles on it and is still covered by warranty, but I feel like I'm getting the runaround from both the dealership and customer service. I still do not have a loaner vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Engine had already had a full replacement within the first 35,000 miles. Driving down the road at 55 MPH and engine stops completely. Have to coast into a neighborhood. Luckily I was able to get out of the road. Pulled over and turn the truck off. Tried to start it and it never would turn over. Came back an hour later to see if it just needed turn off for a bit and restarted. Tried to start it and it started right up. Drove it around the block and then decided to drive to an auto store to test the battery. Before I could get to the store the truck shut off again while driving in the middle of the busiest road in town during rush hour traffic. Had it towed to the dealership and they said I need an engine replacement. This 6.2 motor is completely unreliable and a hazard to anyone driving it. No warning lights, no indication it was going to fail. I keep up with all my maintenance. I drive under control and at the speed limit and I don't tow anything.
I had complete engine failure due to rod bearing failure resulting in the engine locking up and leaving me stranded on the road in 20° weather while waiting 2 hours for a tow truck. My safety was in jeopardy when this happened due to the extreme cold and being stuck on the side of a very busy highway. There was no warning and no warning lights on the dash prior to the engine failure. The engine in my truck is the L87 which is GM’s 6.2 liter V8. Once the truck was towed to the dealership they told me it was completely locked up and the needed a complete engine replacement that took over 8 weeks. Dealership told me the seized engine would be sent back to GM so they could inspect it for causes on why the rod bearings failed resulting in the seizure of the engine.
vehicle shifted strange than reduced power which forced me the pull off the road in a unsafe manner
Truck died and had to have it towed to the dealership. They called me and told me they engine had seized from from bearing failure.
I suddenly lost all power in my pickup. I'd try to accelerate and it would just lag and then all of a sudden it would gain power and take off. It wouldn't shift gears and I could not go over 30 mph, as it was running at about 2-3000 rpm. Once I was in a safe spot to stop, it would not shift into manual or reverse.
03/08/2025 While at Interstate speed engine turned off as did the entire vehicle electrical system in the truck. Steering control was maintained (though not power assisted) and brake control was in the same position. Truck was brought to a safe position in the breakdown lane and a re start was attempted to find that engine would not rotate and a number of dash indications were displayed including check engine. No indication of low oil pressure light nor any other warning was displayed prior engine shutdown event were noted. Truck was taken to an independent repair center for evaluation. Initial inspection noted that engine would neither turn via electric starter nor by manual rotation of crank shaft with a socket and breaker bar. Truck may be inspected near owners residence. Safety risk was low due to the low traffic condition of the interstate travelled at the time.
The transmission on this vehicle has given me problems. I have had the vehicle in a certified garage many times with complaints of a hard shifting transmission. First Chevrolet told me “it’s normal” but there is nothing normal about jerking so hard it throws a drink from a cup holder. Then I was told I needed a transmission wash. That was about $500 for it to “fix” the problem. Chevrolet told me the transmission was may or may not work and it may only be temporary. In my case it has reduced the hard shifting transmission but it’s still obvious. Now when I drive I remove my foot from the accelerator when it shifts from 1st to 2nd. I also make sure to keep a spill proof lid on my coffee because I never know when the transmission may throw it out of the cup holder.
The contact owns a 2022 GMC Sierra 1500. The contact stated that after shifting to park(P) and turning off the vehicle, the message "Shift to Park" remained displayed on the instrument panel, with an audible chime coming from the vehicle. The contact was forced to use the key fob to lock and unlock the doors several times to correct the failure. The dealer was notified of the failure and an appointment was scheduled to have the vehicle repaired. The manufacturer was notified of the failure and provided the contact with a case number. The contact was then referred to the federal safety agency Hotline to report the failure. The vehicle was not repaired. The failure mileage was unknown.
The contact owns a 2022 GMC Sierra 1500. The contact stated that while her husband was driving 30-35 MPH, the vehicle stalled. No warning lights were illuminated. The contact's husband was able to pull over onto the side of the road. The contact's husband attempted to restart the vehicle, and the vehicle failed to restart. The vehicle was towed to the dealer where it was diagnosed and determined that the engine had seized and needed to be replaced. The contact's husband stated that the tow truck driver could not move the gear shifter into neutral(N) when the vehicle was being towed. The vehicle was not repaired. The manufacturer was notified of the failure. The vehicle remained at the dealer and had not been driven since. The failure mileage was 81,000.
Engine catastrophic failure while under extended warranty. Engine failed in February of 24 however I had told dealership I was having troubles with Engine and shifting also tires from 1st 11000 miles it also kept reduce power on me and basically shut down 3 times in middle of hwy. The 6.2 engine locked up on the mechanic who was test driving it. Took 3 months
While driving at 65 mph, the engine locked up, the truck went into neutral, and all power was lost. This occurred with no warning at all. The truck was towed 40 miles to a GMC dealership for repairs. GMC dealership has indicated that the engine is permanently locked up and will have to be replaced. The dealership did not provide any explanation as to why the engine locked up.
Coolant control valve failure (P1098) after 50k service. When this engine code appears the vehicle goes into reduced power mode. While it does this at inopportune time and creates potential for colission with other vehicles such as when merging with traffic. The coolant control valve is a known issue and GM has just recently recalssified it from their powertrain warranty to their much shorter bumper to bumper or emissions warranty without notifity owners of this change. This move directly puts owners and drivers at risk while on the road. GM should be accountable to resolve this problem as failures are across multiples years and are happening to vehicles at all milages with some less than 5k miles. This is an obvious failure on their part and they should be required to rectify the situation.
On or around January 27 2025 my 2022 sierra loss power and shut down at night and dropped to 0 rpm. I was close to the house and got pulled home by relative. When I did get it cranked lifters were tapping which was common in the 6.2 but I drained my oil and filter and saw the glitter look. Truck was still tapping after warmed up. Last night I about got hit at an intersection when same thing happened. I felt a jar, and truck went to zero rpm and loss power. Truck said, put in neutral and try again. When I pushed starter had a click. Then I pushed start again and it started smoking. It burnt my starter up, because engine is seized. I saw where there is an investigation on this and I really hope it goes through because that was a scary moment and it is safety concern. Twice the same thing. But now can’t turn crankshaft, nothing to drive, making payments on a 80,000 truck that is my personal and work vehicle. 92000 miles on my truck and have my oil changed regularly. I’m stuck between rock and hard place, but will be getting it towed to a dealer somewhere. To here I need a 6.2l engine in my sierra slt. 2 year old truck it is stressful. I know im going to here 10,000 $$$ I don’t have.
Engine - catastrophic failure 6.2 liter V8. Vehicle is currently at dealer awaiting full engine replacement. Failure left me stranded waiting for tow to dealer. Problem has been diagnosed as rod and main bearing failure, engine replacement imminent. Vehicle was running perfectly fine all day. Went to take my daughter to basketball practice in evening initially everything was fine, then we heard squeeking, turned around to bring right back home, lost power in intersection, truck stalled. Got restarted check engine light came on and limp mode reduced power activated. Truck towed to dealer and oil pan was pulled. Rob and main bearings have scattered metal throughout the engine. Truck confirmed to need full replacement.
The contact owns a 2022 GMC Sierra 1500. The contact stated while driving at approximately 55 MPH, the infotainment system, and the rearview camera became inoperative, and the vehicle stalled. The tailgate unintendedly opened, and the steering and lane control assist feature independently activated causing the vehicle to steer in the other lanes. The contact stated while the vehicle was in reverse, the vehicle unexpectedly shifted to park. No warning light was illuminated; however, the "Check Suspension" message was displayed on the instrument panel, and lights on the instrument panel were intermittently darkened. The headlights were intermittently illuminated independently. The failures had occurred on several occasions. The vehicle was taken to a dealer to be diagnosed; however, the results were unknown. The vehicle was repaired; however, the failure persisted. The manufacturer was not notified of the failure. The failure mileage was approximately 15,000.
Used my truck to back out of the driveway and wouldn't go into reverse at all. Towed to dealership and said problem was transmission valve body went bad. Dealership said TVB fail all the time in these trucks. They told me that this part is on back order and could be 2 or 3 months to get part in. GM has and known transmission issues . This truck is little over 2 years old and only has 40k on it. I'm hearing that TVB are failing while driving and creating dangerous situations and GM isn't doing anything about . Truck is under PT warranty. I asked what can't GM just put a new transmission in? They say it's not cost effective. So cost is over safety i said!
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