GMC Sierra Complaints

15,732 consumer complaints on file.

#11501826January 15, 2023
AIR BAGS
We were in a roll over accident going under 30mph. I was a passenger in the back seat. When I woke up I saw that the driver was hanging out the door window. The air bags did not deploy. The driver who was also the owner of the truck died of multiple blunt forces. The insurance company had the truck towed to COPART in Las Vegas.
Crash:
Yes
Fire:
No
Injuries:
3
Deaths:
1
#11501848January 15, 2023
ENGINE
2021 GMC Sierra 1500 AT4 6.2L engine, Little over 39000 miles, Purchesed May 2021. This is the second time the vehicle has had this issue. The first time was aprox 15000 miles. I reported the issue to NHTSA-ODI on 6 Dec 2021 tracking # 11442943. I was driving down the interstate I heard a rattling coming from the engine (same as I had heard with the first issue). The check engine came on I ask On Star to do a digonsotic report (see attached report). The report indicated a Fuel Management System issue detected advised to reduce vehicle speed and pay load as possible. I was told by GM certified mechanics that this issue could cause the engine to lock up and come to a complete stop on the roadway. I fill that these vehicle are unsafe to operate under these conditions and may cause serious accidents. GM has known about these issues with these vehicles for several years and has failed to correct the problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11501606January 13, 2023
ENGINE
Over some time we had noticed a chirping / pulsating sound when starting the engine after it was fully cooled down. Cold start. This sound over the last few months has been increasingly getting worse. We asked our dealer to check things over and determine what could be the issue on a regular service visit for oil change. They could not find a reason but said a service visit with a full line mechanic would be needed to diagnose the issue. We did our own closer look and diagnosing just where the sound and smell of oil fumes or gases were coming from and found the Left side (drivers) rear / back cylinder exhaust manifold bolts to be broken off and gone. There are a total of 5 studs and the rear two had failed and gave away to now allow the exhaust manifold to leak exhaust fumes that are obvious in the cab at startup. This is a pretty major failure and safety problem we feel that GM needs to take action on and correct.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11501692January 13, 2023
ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL, EXTERIOR LIGHTING
Dashboard instrument panel all lights and gauges goes out while driving down the road when vehicle is turned off a clicking noise is made in the dash. This issue causes when driving down the road, not knowing the speed because the speedometer is out or how much gas the vehicle has, or any other readings, and at night all lights go out, not able to see while driving down the road.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11501454January 12, 2023
STEERING
The contact owns a 2014 GMC Sierra 1500. The contact stated that the message "Power Steering Assist - Drive with Care" was displayed. The contact became aware that the VIN was included in NHTSA Campaign Number: 17V414000 (Steering) and the vehicle was taken to the dealer where the recall repair was completed; however, the message "Power Steering Assist - Drive with Care" remained displayed while driving off the parking lot. The vehicle was taken back to the dealer where an unknown hose was replaced; however, the failure persisted. The vehicle was taken back to the dealer for a third time. The dealer informed the contact that the steering sensors may be blocked by the rack installed on the front end of the vehicle. However, the contact stated that the rack was installed at the time the vehicle was purchased in 2014. The contact stated that the recall remedy failed to fix the vehicle. The contact stated while attempting to reverse, the vehicle lost power steering functionality. The check engine warning light was illuminated. The vehicle was towed to the dealer, where it was diagnosed that the power steering control module, the steering gear, and tie rod needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 90,363.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11501309January 11, 2023
ELECTRICAL SYSTEM, ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
The contact owns a 2021 GMC Sierra 1500. The contact stated while driving at various speeds with the ONSTAR/GPS, turn-by-turn driving directions activated, there was an unknown notification flashing on the instrument panel and radio. The speedometer was obstructed and failed to work as needed. The screen sporadically went blank. While depressing the dismiss button on the steering wheel, the button failed to correct the failure. There were no warning lights illuminated. The vehicle was taken to the local dealer and the system was rebooted; however, the failure recurred. The vehicle was taken back to the local dealer and the contact was informed to turn off the vehicle, open the door, and then restart the vehicle to reboot the vehicle. The vehicle was taken to another local dealer, Bill Cramer Chevrolet Buick GMC (2251 W 23rd St, Panama City, FL 32405) but the vehicle was not diagnosed or repaired. The manufacturer was contacted but no additional assistance was provided. The failure mileage was approximately 10,450.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11501323January 11, 2023
POWER TRAIN
The contact owns a 2014 GMC Sierra 1500. The contact stated while his wife was driving approximately 65 MPH, the vehicle began to vibrate and made loud grinding sounds. The contact stated that the vehicle began to lose motive power. The contact's wife was able to exit the highway; however, the transmission was slipping out of gear. The contact stated no warning light was illuminated. The contact stated that the failure had become constant. The vehicle was not taken to a local dealer or independent mechanic to be diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was 94,302.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11501006January 10, 2023
SERVICE BRAKES
I am experiencing hard brake pedal and/or brake fade when attempting to apply the brakes. Their is a recall for this problem on other models, however my truck model year is not included for some reason. This has occurred on multiple occasions and has nearly caused an accident on those occasions. My truck also began to roll out of a parking spot and I had extremely hard brake pressure but no response from the brakes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500847January 9, 2023
POWER TRAIN
Took my truck to gmc dealership to get brakes and transmission fluids flushed, then a few months later I noticed that my truck started shifting hard. then one day going back home from work I lost 6th and 5th gear, would not go into either one. then I lost all gears and would just red line when I pressed the gas. had to coast into a parking lot to get a tow truck and carry it to a transmission shop. the shop said that the universal clutch was burned up and would now cost me $5,000 to fix.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500876January 9, 2023
SERVICE BRAKES
My 2017 GMC Sierra is experiencing similar issues with excessive force required, vibration in brake pedal at low speeds, and delays in stopping as found on 2018 and up trucks and SUVs. I notified the dealership about a year ago about the issue and it potentially being linked to the recall and they said it wasn't and they would have to charge me to inspect and repair. The issue can obviously lead to an accident if the brakes continue to worsen and fail. Also abrupt stopping at low speeds doesn't work efficiently putting anyone who steps out in front of my vehicle or stops abruptly in front of me at risk. A couple of times there was a diagnostics alert sent to my email stating an "issue with the antilock braking system was detected". There are already accidents reported with 2018 and up vehicles because of this issue. I feel the recall for the 2018 and up vehicles needs to be extended to 2017 vehicles to prevent accidents.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500519January 6, 2023
SERVICE BRAKES, ELECTRICAL SYSTEM
I am receiving an on-and-off “Service Trailer Brake System” when towing and sometimes when not towing. Checked every component and alert does not stop. When this happens while I’m towing, trailer brakes stop working momentarily.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500553January 6, 2023
ELECTRICAL SYSTEM
Driving down the road. Thankfully it was late at night and the roads were empty. But the truck shut down and brakes locked up and steering wheel locked. Once I was at a full stop. I turned the truck off and back on and was able to drive home. But I called Gmc regarding this issue and brought they couldn’t find anything wrong
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500249January 5, 2023
SERVICE BRAKES
The contact owns a 2015 GMC Sierra 1500. The contact stated her husband was driving when the vehicle in front of them applied the brakes unexpectedly, the driver depressed the brake pedal but failed to stop the vehicle due to the brake pedal being resistant/ rigid causing the vehicle to rear-end the other vehicle. The contact stated no warning light was illuminated. The air bags did not deploy. The contact stated no one was injured nor sought medical attention. A police report was filed. The driver was able to continue driving to their destination. The contact took the vehicle to the local dealer, where it was diagnosed that the vacuum pump had to be replaced. The dealer replaced the vacuum pump back in October of 2022. The vehicle was repaired but the second vacuum pump was also defective and the dealer replaced it on-site for a third time. The vehicle was repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 85,500. The contact stated that the failure speed was no more than 70 mph.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11500275January 5, 2023
SERVICE BRAKES
When pressing the brakes a few time at a low speed Iose brake power. There is already a recall out for this model but not my vin. This is my recall issue Brake Assist Decreased Due to Vacuum Loss
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500307January 5, 2023
VEHICLE SPEED CONTROL
Vehicle EGR Bypass Valve becomes clogged do to faulty propeller system in valve resulting in vehicle entering into limp mode and stranding passengers in i climate and dangerous weather.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11499854January 3, 2023
STEERING
While going at a low speed, the steering starts to get tight. It is not constant but occurs off and on. I have read online about this recall, but the truck I own was not included. I believe it should be. I can't trust pulling into traffic for fear it will lock up.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11499881January 3, 2023
POWER TRAIN, ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL
There is an issue that is causing the batteries to die. This in return causes the Vehicle to go into Limp home mode with no warning. The "issue" was supposed to be resolved by the Dealer in March 2022. The resolution was that one battery was bad. The vehicle is equipped with two batteries. Each of which is sufficient to run the vehicle. A single battery failure should not have caused the truck to have a power limitation. Furthermore the issue was not resolved and General Motors and the Local dealership refuse to continue to work on the issue. This is even after filling complaints with BBB. As of November 2022 the issue has cause both batteries to go bad. The dealer has refused to work on the vehicle and it has been out of service for more than 30 days. Secondary issue. The dealer has refused to work on the vehicle but computer is locked by GM so that only GM equipment can see full scope of codes. This means I can not have third parties work on the vehicle. This is can get the vehicle stuck in areas where there is not GM facilities and GM will not provide any assistance as it is not under warranty. This has also prevented me from finding the actual resolution to the problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11499918January 3, 2023
SERVICE BRAKES
I keep receiving trailer breaking system service notifications and as far as I know a trailer breaking system requires no service.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11499958January 3, 2023
ENGINE
i FEEL IT IS IN THE FUEL MANAGEMENT SYSTEM When driving along every now and then you can feel a vibration like diving on rumble strips. there is no rhyme or reason for it. I had it to the dealer and they told me that was normal, if you don't want it to do it then drive in 9th gear. I'm not going to shift to 9th every time I drive.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11500039January 3, 2023
STEERING
Hit a small bump driving 55mph on highway and had sudden complete power steering loss and extremely hard to turn. Drove to a safe location and shut down truck for 1 hour. Upon restart power steering was operating normal. Proceeded back on the freeway and as soon as I hit a small bump with driver's side front tire the same thing happened again complete power steering loss. Drove to dealership and waiting for explanation. The truck is not safe due to inability to turn the wheel without power steering. For someone with less strength, this could be deadly on anything besides a straight road, needing to turn a corner, or to avoid a collision.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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