GMC Sierra Complaints

15,732 consumer complaints on file.

#11545974September 22, 2023
ENGINE AND ENGINE COOLING
Check engine light came on and vehicle began to have issues with transmission
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545447September 19, 2023
STRUCTURE
The contact owns a 2011 GMC Sierra 1500. The contact stated that while the vehicle was parked, the contact noticed a separation of the rear sub frame of the vehicle. The vehicle was taken to be diagnosed by an independent mechanic. The contact was informed that the rear sub frame was extremely rusted. The vehicle had not been repaired. The manufacturer was made aware of the failure and referred the contact to a dealer for assistance. The failure mileage was approximately 112,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545524September 19, 2023
ENGINE
Lifters camshaft malfunction. Known issue with 2021 GMC Sierra 20,000 miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545089September 18, 2023
SERVICE BRAKES, VEHICLE SPEED CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Traveling at 70 mph on cruise control, tapped breaks to turn off, multiple warning lights flashed, vehicle lost power, and breaks with multiple messages including “Break system failure, top speed 62 mph”. I lost all breaking control on the highway and nearly crashed into other vehicles due to inability to stop. Was able to pull over, turn off vehicle, and turn back on, when the breaks were working again but the vehicles acceleration was very slow. Currently at authorized repair shop. When dropped off, there were 8-9 active codes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545110September 18, 2023
ELECTRICAL SYSTEM
Tailgate opens when driving and when parked. I thought something must of hit the button on the dash the first time it happened but now it is constantly doing it on its own. It has damaged the hitch.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545236September 18, 2023
TIRES
I reached out to manufacture via text, email and no response they just not responding on either Chanel..
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544881September 16, 2023
ELECTRICAL SYSTEM, ENGINE, FORWARD COLLISION AVOIDANCE: WARNINGS
TRUCK HAS DIED GOING DOWN THE ROAD AT 40MPH. ALSO HAVE ELECTRICAL ISSUES WITH RADIO..RUNNING BOARDS OPENING GOING DOWN THE ROAD. NO SOUND FROM RADIO, SIGNALS ...NO CONNECTIONS TO GOOGLE ON STAR LOST. RADIO SCREEN HALF OF SCREEN SHUTS OFF. FRONT CRASH SENSORS GO OFF WITH NOTING IN FRONT OF VEHICLE...LOSS OF CAMERAS NO CONNECTION. SOUNDS LIKE A BUG ZAPPER UNDER TRUCK. GM HAS REPROGRAMMED TRUCK NOW 3 TIMES SENT A TECH FROM FACTORY...REPLACED RADIO REPROGRAMMED ALL COMPUTERS AGAIN!! TRUCK HAS BEEN IN THE SHOP THIS TIME FOR OVER 30 DAYS WITH 6200 MILES ON IT THIS IS THE 4TH TIME SINCE I BOUGHT IN JUNE. HAVE A CASE REPRESENTATIVE FROM GM WHO WILL NOT HELP WITH ISSUES JUST KEEPS PUTTING ME OFF. HAVE VIDEOS PICTURES OF ALL THE ISSUES AND HAVE GIVEN TO DEALER AND GM
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544893September 16, 2023
POWER TRAIN, ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL
On or about [XXX], the Transmission Control Module, FAILED, on my 2011GMC Denali 2500 6.6 diesel. It was a KNOWN faulty part .General Motors was aware of the issue years ago. This part should have been deemed a Safety Recall item. Imagine, pulling a trailer down a busy Freeway, with Semi's presence. Module goes out, truck goes idle, people hurt or worse. 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
#11544454September 14, 2023
AIR BAGS
The passenger side airbag recall involves the removal of the dashboard and the dealer advised the dashboard may break during this process and I am responsible for the cost to install a new one. Their estimate was $1500.00.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544551September 14, 2023
SERVICE BRAKES, HYDRAULIC
The contact owns a 2017 GMC Sierra 1500. The contact stated while parking at 5 MPH, the instrument panel went black intermittently. The brake pedal was firm and had failed to operate as needed. The brake pedal was pushed to the floorboard. The service brake assist warning light was illuminated. The vehicle was towed to an independent mechanic. The vehicle was diagnosed however, the cause of the failure was not found. The vehicle had not been repaired. The manufacturer was made aware of the failure and informed the contact to take the vehicle to the dealer for a diagnostic test. The failure mileage was approximately 48,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544570September 14, 2023
POWER TRAIN
Transmission lost power
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544253September 13, 2023
POWER TRAIN
Transmission shudder at different speeds while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544341September 13, 2023
ELECTRICAL SYSTEM
The fan for the heater doesnt work on all speeds properly, stopped working entirely
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544374September 13, 2023
ELECTRICAL SYSTEM, STRUCTURE:BODY
When the car is on and in park, there is a button on the front console that drops the tail gate. The truck gives you no indication that the button has been pressed or that the tailgate is open. You can then drive the truck with the tailgate open and have no indication or idea. As a result, it is easy to lose gear out of the truck bed while you are driving. This button is located just above a storage compartment and is easy to press while placing items in this compartment. This is a major safety hazard on the road. There is no option to disable this button or be alerted when you tailgate is open.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544060September 12, 2023
WHEELS, UNKNOWN OR OTHER
driving at 70mph, thread from tire blew.. That was in July, I went and purchased another tire from Bob King GMC Wilmington, NC. The first tire that blew was now discontinued so I purchased another Good Year . On Friday I noticed that another tire on my truck had a bubble along the threads again. It was also getting ready to blow like the first tire. I went to the dealer and they told me the tire I purchased (Good Year) was also discontinued... Please look into this matter.. They have faulty tires and this matter could have turned out with a death.. It isn't the dealers fault it is Good Year .... I have also read on line this isn't the first time people are complaining about the threads coming apart....
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544094September 12, 2023
SERVICE BRAKES
I was driving the vehicle with my 4 year old daughter and experienced a complete brake failure. The dealership responded by replacing the master cylinder (the truck only has 16000 miles on it). Upon receiving the truck back from the dealer, another brake failure occurred. This is a dangerous vehicle and GM has done nothing to make it right with me.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11543828September 11, 2023
ENGINE
Engine Oil Cooler Line detached from Crip fitting. Vehicle: 2019 Sierra 1500 powered with 6.2L L87. GM has a published policy for a specific 530 vehicles, GM Claims my VIN was not covered hence no recall police "Customer Satisfaction Program N212326940" letter was released for subject VIN. It's clear, this issue exists beyond the scope of 530 vehicles. No know warnings existed prior to the incident. Vehicle has been repaired at owners expense and not supported by GM.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11543535September 9, 2023
SUSPENSION
There is a clunking and popping noise on the rear suspension or spring leaf when going between 5-20 mph, there is no active recalls for this but there is a lot of people complaining about this problem and the dealer does not wants to take responsibility for this issue need help. They are forums online all over the country complaining about this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11543326September 8, 2023
ELECTRICAL SYSTEM, POWER TRAIN
Transmission Control Module I was at an intersection when the TCM malfunctioned halfway through and I lost all power to my motor. I was pulling a large trailer and cross traffic had to slam on brakes to keep from hitting me. My truck will not move faster that a few miles an hour now that it is in limp mode. I am a police officer and I had an onboard diagnostic tool that showed that there was no communication to the TCM. Stabilitrack warning lamp and check engine light are now on. It all happened at once no warning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11543333September 8, 2023
POWER TRAIN, STEERING, SUSPENSION
The right side started clicking out of no where when I turn the steering wheel
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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