GMC Sierra Complaints

15,732 consumer complaints on file.

#11584433April 22, 2024
POWER TRAIN
The engine failed while driving on the expressway. It is clearly the fault of the Active Fuel Management (AFM) system but GMC will not honor the warranty because I went over 7,500 miles between oil changes. This is a problem because the car stopped operating while driving down the interstate. Manufacturer inspection took place. They looked at the oil filter and saw the metal in the oil filter. No warning lamps, messages or symptoms of any sort prior to the engine failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584445April 22, 2024
UNKNOWN OR OTHER
Multiple cracks in dash
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584454April 22, 2024
VEHICLE SPEED CONTROL, POWER TRAIN, ENGINE
The vehicle would shudder when trying to accelerate. I almost was hit by a semi truck trying to merge onto the freeway. Made an appointment with the mechanic then a couple days later I was at a stop sign and the vehicle would not accelerate at all. I placed in park the tried shifting back into drive and still nothing. I had to turn the vehicle on and off twice before I was able to shift it in drive an it actully would accelerate. Even then it would shudder and not accelerate fully. Very dangerous. Just hit 100k miles. GMC Certified Mechanic said the transmission is shot and needs to be replaced. Cost to replace over $6,000.00 Bought the truck in 2020 for $35,500 and just paid it off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584604April 22, 2024
POWER TRAIN
Experienced hard shifting in my transmission a couple before it all of the sudden it made a thing noise and didn’t want to move forward to easy. Babied it home and by then it was whining and whistling all the time. I Quit driving it immediately and had it towed. Being only a 2017 I can’t believe this happened. Plus I had a 2014 prior to this and I had the same issue but traded it off before it went all the way out. After going to social media I am finding out that so many people with mid to late model 2000s have had this same issue, even family. Plus I was told by 2 different transmission places this is very common in these with Chevy and GMC model trucks. How could this be going on? I am assuming because people don’t know to report. Being on disability and a fixed income this took a hit to my bank account, actually a home equity loan.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584323April 21, 2024
POWER TRAIN
The transmission became inoperable and a message appeared on the display 'Engine Power Is Reduced' in area of the highway where the speed limit is 55 and then the transmission failed completely and left the engine revving at high rpm and not moving the vehicle forward and we rolled to the side of the road to a stop. This was a very dangerous situation as traffic was flying past us and had to move out of the way of our coasting vehicle. It was towed to a GMC dealership about 8 miles away as it is still under warranty. I've read many stories in GM forums about problems with this GM 10 speed transmission in this pickup truck. This needs to be looked into as a potential recall as this problem left us stranded on the side of the road as we had to wait for a ride because we had a dog with wife and I. Currently there is not a transmission recall listed for this vehicle. We were lucky to be in an area where we had cell phone service and relatively close to home, within 10 miles. We have a trip planned for next weekend to go to a couple national parks in Utah and now we don' t have a vehicle to take on this trip to haul out bikes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584179April 20, 2024
ENGINE, VEHICLE SPEED CONTROL
Driving on the highway coming home from brother in laws house and the truck suddenly popped check engine, brake service and ESC lights came on dashboard while engine power was reduced causing sluggish performance. Made it home and put a scan tool and pulled a cylinder 3 misfire. Replaced spark plug and confirm it’s not an ignition coil problem. Brought to dealer and was confirmed the DOD lifter failed in other words AFM. Overwhelmed and couldn’t do anything but to pay and get truck back to working order told go ahead for replacement of parts for nearly $6k.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584185April 20, 2024
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: ASSIST
Purchased vehicle new June 23 2023 and Super Cruise never worked and if engaged acted erratically . Vehicle spent over 40 days in several GM dealerships for the issue and one dealer even charged me for installing a warranty part.. GM filled a case 9-10220813020 but were not helpful in dealing with dealers and to add insult to injury would not even reimburse me for warranty work or in any way compensate me for my time and efforts to fix the issue. Frustrated with GMs indifference I traded the vehicle in March 2024.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584270April 20, 2024
AIR BAGS, SEAT BELTS
My son's 2015 GMC Sierra side impact air bags went off while he was driving. He had no impact. He thought he hit a small pot hole but after driving back on the road, it was recently paved so it was not a pot hole. He guessed it was the edge of the road from the recent paving that he hit. He heard a loud noise like a gun shot. His cabin filled up with smoke and the side impact air bags when off. When he took the truck to the GM Dealership, it gave a code for front air bag deployment due to impact. But the side air bags went off and there was no impact. The only damage to the truck is the deployed side airbags and the locked seatbelts. He has a warranty but they kicked it to GM. Warranty stated that if they fixed it, they were worried that it would happen again. We filed a claim with GM. After GM sent three different inspectors out and over 5 weeks later, they denied the claim. They have also not sent the inspection reports as requested. My son did not have this truck for the first three months he owned it because GM could not find the faulty code causing transmission issues. I am worried the air bags deployment will happen again while he is driving at a high speed and cause a serious wreck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584171April 19, 2024
SERVICE BRAKES
When starting the vehicle, I got a message to service the parking brake (this is the second time I’ve had this warning appear in the 21,000 miles I’ve owned it, first was approximately 5,000 miles ago). When this warning is active the parking brake does not engage, and can’t be used to stop the vehicle when the brakes fail as they did today. With 42,774 miles on the vehicle, and the onboard monitor for brake wear showing remaining brake life at 94% front and 96% rear, brake fluid reservoir between Max and Min the brake pedal went soft and the vehicle would not stop. I resorted to putting the vehicle in neutral and pumping the brakes until the pedal got hard. As soon as I let off the brake my vehicle began to roll backwards, stepped on the brake pedal again and the pedal again went to the floor without stopping or slowing the vehicle (pumping the brakes got it stopped again inches away from running into my house). The myGMC app notified me that I need to service the ABS system. I had the vehicle towed to the dealership for diagnostics and repair. Possibly related, this afternoon before the brakes stopped working I felt a mild vibration when traveling 20-35mph that resembled the vibration that occurs when a wheel bearing has begun to fail. Tow truck driver witnessed the vehicles inability to stop when putting it in neutral to load vehicle. It is unimaginable that a vehicle can be placed on the highway that has no backup system in the event of brake failure. Had a kid run out in front of me there would have been no way to avoid the accident (no other warnings appeared to indicate the vehicle was unsafe to drive. Brakes worked correctly and stopped appropriately until they didn’t).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583948April 18, 2024
UNKNOWN OR OTHER
Rear tailgate randomly opens on its own while driving. Items from the rear bed can fall out causing a traffic hazard
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583826April 18, 2024
ELECTRONIC STABILITY CONTROL (ESC), SERVICE BRAKES, HYDRAULIC
The contact owns a 2019 GMC Sierra 1500. The contact stated while making a left turn, the steering wheel was yanked to the left. The contact stated that the "Service ESC and Power Steering" message was displayed. The vehicle was taken to the residence. On another occasion, the following day while making a right turn, the steering wheel was yanked to the right. Additionally, the contact stated that the steering wheel was firm and difficult to turn. The contact stated that a "Service ESC and Power Steering" message was displayed. The vehicle was steered to the side of the road. The vehicle was towed to the residence. The vehicle was not diagnosed or repaired. The contact believed that the failure was associated with NHTSA Campaign Number: 19V889000 (Service Brakes, Hydraulic, Service Brakes, Electronic Stability Control (ESC). The manufacturer was notified of the failure. The failure mileage was 85,502.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583898April 18, 2024
SERVICE BRAKES, ELECTRICAL SYSTEM, POWER TRAIN
Transmission started to shutter at 24000 miles. Dealer said couldn’t find anything. ABS and Stabilitrack light came on at about 40,000 miles off and on. Both these problems could result in a crash. On freeway or streets. The display information/ radio has a mind of its own. Connects to any phone number or start the on star call and etc. it takes your attention off the road and can result in a crash.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583571April 17, 2024
UNKNOWN OR OTHER
AC condenser went out on my vehicle with 100,000 miles, lots of reviews online stating this is a known problem but yet there is no recall. Torch Converter going out at 80,000 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583656April 17, 2024
STRUCTURE:BODY
Driving and the tailgate opened/released on its own
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583283April 16, 2024
EXTERIOR LIGHTING
The headlights are dangerously dim, can't drive the vehicle comfortably at night. There seems to be no solution for fixing them. A TSB has been issued concerning this, but does little to address fixing the problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583349April 16, 2024
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
GMC of Vacaville California sold me a 2019 GMC Sierra that has a know back window leak issues. I was told by service worker GMC of Vacaville California sold me a 2019 GMC Sierra that has a know back window leak issues. I was told by service worker Brent Lewis/405 that is a common issue and GMC is aware of this issue that the vehicle was brought in before for this same issue prior from [XXX] but was not taken care of. I purchased this vehicle on [XXX] along with a 5k extend warranty that I was told is a bumper to bumper warranty. Come to find out it does not cover a manufacturer defected back window installation. My concern is that they are aware of these issues and water sitting on the inside of the cab due to a leak causes black mold and could cause serious illness to myself and my children. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583350April 16, 2024
POWER TRAIN
Transmission shifting hard. Shuddering around 60-65 mph
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11582960April 15, 2024
UNKNOWN OR OTHER
Unknown. My truck has only about 46,000 miles . We experience heavy rains on the week of 4/8/2024 and I went to go load groceries in the back and saw water coming down the back window. I went straight to the dealer and spoke with Tom a manager at GMC. He took me to service and a mechanic came out and said this a common and expensive job. He said I may need anew window replacement. I left and did research on this problem. There seems to be EVERYONE who has a GMC or Chevy has this problem. Many people are experiencing rust, mold, etc. This is a MAJOR issue. All you hear about mold health isssues. NOT any issue that should be over look. Whenthere is water there IS mold. This issue probably has been going on longer but due to heavy rain and me going in the back I saw water. This is something that dealers need to fix.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583160April 15, 2024
EXTERIOR LIGHTING
3 year old truck. The left headlight enclosure gained water and caused the whole headlight system to have issues. Water caused the Headlights to Flash high beams (both), turn off and blinkers not to work. This defect the whole side that is effective. This can cause other drivers or the owner to have an accident. 6 months later, Now the right side headlight is doing the same. I’m out of warranty with only 40k miles. The seal is not strong enough to keep water out the enclosure. This can also cause the whole light system to shut down while driving. Very dangerous especially at night.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583161April 15, 2024
LATCHES/LOCKS/LINKAGES
The contact owns a 2023 GMC Sierra 3500. The contact received notification of NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages) however, the part to do the recall repair was not yet available. The vehicle was taken to the dealer however, a diagnostic test was not performed but the dealer provided a temporary repair by disconnecting the tailgate switch. The contact was advised by the dealer to access the tailgate to use the key fob or the button located within the vehicle. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. VIN tool confirms parts not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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