GMC Sierra Complaints
15,732 consumer complaints on file.
- #11475475July 23, 2022STEERING
I started my truck like normal and my service power steering light drive with care message came on and then Service ESC and the traction control light. My power steering was completely gone. I researched and found that 2020-21 GMC SUVs were recalled due to the same issue. My GMC truck is doing the same thing. I barely made it home from the store not having power steering is extremely dangerous, I still have no power steering. I just purchased this truck from CarMax last month.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11475305July 22, 2022AIR BAGS
The contact owns a 2015 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 21V504000 (Air Bags) however, the part to do the recall repair was not yet available. The local dealer and several unknown dealers were contacted and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time to for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11475365July 22, 2022POWER TRAIN
Transmission hesitate going into 2 gear
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11475398July 22, 2022UNKNOWN OR OTHER
The auto stop not working alll the time
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11475404July 22, 2022ENGINE
2015 gmc sierra crew 4x4 with 92k miles suffered from lifter and push rod malfunction on cylinder 7. The engine started making a knocking noise, there was a loss of power and the truck was shaking. It seems this a common theme with these trucks.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11475406July 22, 2022SERVICE BRAKES
A Service "Trailer Brake System" message keeps coming up on my display constantly, over and over and over, I can't see the speed display, I can't hear the turn signal sound, it's extremally distracting and loud. When I looked this message up I found the wiring was faulty and my trailer brakes won't work.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11475092July 21, 2022SERVICE BRAKES
Purchased GMC Sierra C1500 new in 2015 from a dealership in Orange County, CA. Experienced multiple issues over the past 4 years with the "Trailer Brake System" Service light and loud beeping which has created multiple safety issues making the vehicle undrivable at times. The last incident was while on a cross country road trip through extreme heat in the Southwest from Texas to California in June and most recently while visiting Orange County. The beeping noise almost caused a couple of accidents as the hands free phone system was inoperable due to the loud warning beeping noise as it went on and off about 50 times. We were required to take several risky maneuvers to pull the vehicle off heavy highway traffic at high speeds to stop the engine and restart in an attempt to reset the warning beeping system without success. The truck was checked in for service on 07.20.2022 at Tustin Buick GMC. Mr. John Boozer, Service Advisor. 714.669.3699. The total cost of repairs is $465 plus car rental of $80. Additional costs in April of 2019 for the repairs included fuse replacement, check of wiring harness and attempt to stop the beeping noise was $150. The defective wiring harness originally installed by GMC when the truck was built will be preserved and is available should your agency request it. Total costs out of pocket to replace or fix this factory defective part is $695. GMC has made no effort to address this issue or offer any recall notices related the failure of the "Trailer Brake Warning System". Thank you for your attention to this matter.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11475195July 21, 2022ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
The contact owns a 2014 GMC Sierra 2500. The contact stated that the vehicle failed to start as needed. The contact stated performed a diagnostic test on the vehicle and determined that the engine control module (ECM) needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were both contacted and informed the contact that the vehicle was out of warranty. The failure mileage was 74,319.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474847July 20, 2022SERVICE BRAKES
On July 18, 2022 my trailer brakes suddenly stopped functioning ( a few hours from home) Not only did did the trailer brakes stop functioning, but this warning message didn't popped up just one time, it kept coming again and again and again and again, relentlessy chiming and distracting me from driving. it covered my speedometer readout. it prevented me from receiving or making voice commands. the service warning chime also prevented the turn signal from functioning. So for a full 4 hours I was constantly reminded and was unable to receive calls or make voice commands. i absolutely wont hesitate to say the vehicle was not safe to drive in that condition. your vehicle's defect endangered my life. I will not hesitate to say your vehicle was not safe to drive in that condition. Your vehicles defect endangered my life! Lastly, my vehicle did not want to start the next morning!!
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474899July 20, 2022POWER TRAIN
The contact owns a 2019 GMC Sierra Denali. The contact stated while parking the vehicle, the vehicle inadvertently stalled without warning. The contact attempted several times to restart the vehicle however, the vehicle would not restart. The contact attempted to jump start the vehicle and the failed to start. The vehicle was towed to the dealer where the starter was replaced; however, the failure persisted. The contact was informed that the engine needed to be replaced due to metal shavings in the engine. The vehicle was not repaired. The manufacturer was contacted and they offered to partially pay for the repair. The contact stated that he believed that the vehicle was not repaired correctly under NHTSA Campaign Number: 20V650000 (Power Train). The failure mileage was 91,000.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474987July 20, 2022STEERING, ELECTRICAL SYSTEM, SERVICE BRAKES
When driving my truck I lost all power steering got notifications to service abs in 7 days, service esp, and service power steering as well as a stability at light being on. Could no control my vehicle, restarted the truck 4 times, and it disappeared, garage could not pull any codes. This is VERY unsafe!!!!!! And has been issued a recall in past models and years. I could have been killed, for a problem the GM is aware of and have not issued a recall yet.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474777July 19, 2022SERVICE BRAKES
Service Trailer Brake warning comes on repeatedly. Trailer brakes fail to work.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474421July 18, 2022UNKNOWN OR OTHER
Constantly getting “service trailer brakes system “
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474544July 18, 2022UNKNOWN OR OTHER, AIR BAGS
During a Takata Air bag recall repair GMC Warsaw, IN broke my dash and now refuses to fix the problem.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474551July 18, 2022ELECTRICAL SYSTEM:WIRING
The contact owns a 2019 GMC Sierra 1500. The contact stated while at a traffic signal, the vehicle stalled while depressing the accelerator pedal. The contact stated that he shifted the vehicle into park(P) and needed four attempts to restart the vehicle. The contact stated there was no warning light illuminated. The contact proceeded a few miles on the road and the vehicle stalled. The contact was unable to restart the vehicle. The vehicle was towed to a dealer who diagnosed that the vehicle needed a new battery. The battery was replaced. The contact stated that the failure recurred. The vehicle was towed to the same dealer who informed the contact that the wiring harness nearby the front suspension control arm was chafed. The contact was informed that a short circuit had caused the vehicle to stall. The dealer stated that the failure was related to Technical Service Bulletin: 21-NA-149 (Engine Wire Harness Chafing). The vehicle was repaired. The manufacturer had not been informed of the failure. The failure mileage was 51,799.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474381July 17, 2022ENGINE, ELECTRICAL SYSTEM
When decelerating and turning left the car goes completely dead. First time I just about got killed on the highway. The other two times I knew to put it in neutral & crank the car. No steering no nothing. Days Chevrolet in Jasper, Gais trying to tell me there is NO RECALL on my serial number. I see there were a lot of them years ago. In addition to that my power steering occasionally goes out. The last time I was backing into my garage when I had to manually turn it. Hard to do for a woman.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474394July 17, 2022POWER TRAIN
My transmission shifts very hard from first to second gear, and when accelerating onto a freeway. It literally jolts the entire vehicle. Recently on two occasions at less than 5 mph it shifted so hard it felt as if I was struck from behind by another vehicle. I’ve been told by my local GMC service department that it is a “learning” transmission and it’s learning how I drive. That was their remedy.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474033July 15, 2022POWER TRAIN
Vehicle shakes and shudders. Transmission required to be replaced at 70,710 miles. Dealership said the torque converter and transmission failure is a common event in these vehicles and wasn't covered under warranty
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474048July 15, 2022POWER TRAIN:AUTOMATIC TRANSMISSION
2018 GMC SIERRA 2500. CONSUMER WRITES IN REGARD TO TRANSMISSION COOLER LINES RECALL. THE CONSUMER STATED THE VEHICLE BEGAN LEAKING FLUID. THE VEHICLE WAS TAKEN TO THE DEALER TO HAVE THE VEHICLE REPAIRE, WHICH COULD NOT BE DONE THE SAME DAY. THE CONSUMER WAS SEEKING REIMBURSEMENT FOR THE HOTEL EXPENSE, SINCE THE CONSUMER WAS TRAVELING OUT OF STATE WHEN THE FAILURE OCCURED.
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0
- #11474111July 15, 2022VISIBILITY:REARVIEW MIRRORS/DEVICES
Mirror fails to come in sometimes
- Crash:
- No
- Fire:
- No
- Injuries:
- 0
- Deaths:
- 0