GMC Sierra Complaints (2015)

916 consumer complaints on file.

#11499157December 28, 2022
ELECTRICAL SYSTEM, VISIBILITY/WIPER
Rear defroster (with sliding rear window) thermal events with arcing and hissing, smoke smell present. Matches the same description as provided in document N192265660. GM will not cover my vehicle because it was not delivered to a dealer in any of the states listed in the document. There is evidence in the vehicle of thermal events, however GM wants me to pay $1000-$1500 for a new rear sliding window.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11498119December 19, 2022
UNKNOWN OR OTHER
Service Trailer Brake System warning keeps coming on every time I start my truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11497442December 14, 2022
FUEL SYSTEM, DIESEL
The contact owns a 2015 GMC Sierra 2500. The contact stated while her husband was driving approximately 20 MPH, the vehicle lost motive power and stalled. The vehicle lost power steering and power braking functionality. The contact stated that her husband did not see any warning lights being illuminated. The contact stated that her husband pulled over and stopped the vehicle. The vehicle could not be restarted. The contact stated that her husband purchased a fuel head for the diesel engine. The fuel head was replaced, the vehicle was started, and ran for less than a minute when the contact heard loosened nuts and bolts coming from the engine compartment. The vehicle stalled and was towed to an independent mechanic. The vehicle was diagnosed, and it was determined that the CP4 had to be replaced with a CP3 Conversion (Part 10904), fuel pump module assembly (Part N10021) and a Duramax Conversion kit (Part 10904). The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 136,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11496321December 6, 2022
AIR 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 unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time 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
#11496331December 6, 2022
POWER TRAIN
On November 14th, while commuting home from work, my transmission failed while I was stopped at a red light. After the light turned green, my car would not move when I pushed my foot on the gas. The engine would rev up but nothing would happen. I turned off the engine and re-started several times but the car would never move. I eventually gave up and turned over my emergency blinkers and started calling tow trucks. I was stuck in the center lane of a 4-lane road road at a very busy interstate interchange during rush hour. These were incredibly unsafe conditions as the location of my vehicle almost caused several accidents. It took over 3 hours for a tow truck to show up, move my vehicle from the busy road, and tow it to the local dealer. After investigating, the dealer said the transmission pump blew apart of sent metal throughout the transmission and caused it to be inoperable. There were no warning lamps, messages, or other symptoms prior to this occurrence.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11495699December 1, 2022
ELECTRICAL SYSTEM
The service trailer brake icon keeps appearing on my screen I’m afraid it’s going to not work properly when towing trailers it’s constantly going on and off I believe it’s the brake control module switch but also could be in the harness just want Gm to be aware of the many blogs that I have read about with this problem The problem first appeared about two months ago
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11495540November 30, 2022
SERVICE BRAKES
Hard break peddle at low speeds, break booster issue
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11493710November 15, 2022
TIRES
The contact owns a 2015 GMC Sierra 1500 equipped with Falken Tires, Tire Line: Wild Peak AT3W, Tire Size: LT285/55/R20, DOT Number: (NA). The contact stated that while driving at approximately 45 MPH, the front passenger’s side tire became flat. There was no warning light illuminated prior to the failure. The vehicle was taken to an independent mechanic, where the contact was made aware that the driver's side tire had dry cracking on the inside sidewall and the front passenger’s side and rear passenger’s and driver’s side tires had bead separation. The tires were not replaced. The tires were replacement tires. The dealer was not contacted. The manufacturer was notified of the failure. The approximate failure mileage was 121,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11493456November 14, 2022
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW:ELECTRICAL HEATING ELEMENT
The contact owns a 2015 GMC Sierra 2500. The contact stated while driving 35 MPH with the rear defroster activated, there was smoke coming from the window before the window cracked. The contact had taken the vehicle to a certified mechanic who determined that the rear defroster needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure and confirmed that there was no recall or warranty coverage for the repair. The approximate failure mileage was 131,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11490566October 24, 2022
ENGINE
Improper cooling cycles causing coolant leaks on the radiator
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11490387October 22, 2022
ELECTRICAL SYSTEM
Water intrusion from antenna ran down into my wires causing corrosion in my electrical harness. Truck will throw code p2138 and go into reduced power mode. Very dangerous when you are in traffic. Truck will not go over 15mph when this happens. This has been a problem intermittently since I have owned the truck at 119000 miles . Gotten progressively worse.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11490078October 19, 2022
ELECTRICAL SYSTEM
Power steering cut out instantly as I was driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11489877October 18, 2022
ELECTRICAL SYSTEM
I was driving down the road after turning on the rear window defrost. The cab of the truck filled with smoke billowing from the back seat. I pulled over and turned the truck off. I got into the back seat to try to identify what was on fire, and noticed the lines of the rear window defrost system were actually smoldering. Then one of the rear windshield panels exploded in my face. Upon reading online, it looks like a recall was issued for this same problem in Canada but not the USA.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11487912October 4, 2022
SERVICE BRAKES
Trailer Brake System Service.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486609September 27, 2022
AIR 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 unavailable. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486168September 24, 2022
SERVICE BRAKES
When braking at low speeds I have no brakes to stop and i can feel a vibration in the brake pedal.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11485685September 21, 2022
ELECTRICAL SYSTEM:HORN
The contact owns a 2015 GMC Sierra 3500. The contact stated while driving 55 MPH, another vehicle merged into the lane that the contact was driving in and the contact pressed on the horn pad however, there was no sound coming from the horn. The vehicle was taken to an independent mechanic and the horn was replaced. The contact stated the failure had occurred several times and the horn was replaced each time. The manufacturer was contacted and stated there was no recall related to the failure and offered no additional assistance. The failure mileage was 120,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11485337September 19, 2022
ELECTRICAL SYSTEM, STEERING
Several instances in which power steering assist lapses at low speed. Several times lapses coupled with radio/ac going off. Two times the truck has died while backing into garage. I have narrowly missed hitting other cars while parking in various places. I have not taken the truck to a dealer or service center for this problem. It has not been inspected by manufacturer, police, insurance or others. Several different messages show up in different instances. Today I noticed “parking assist symbols not available.” Then the truck died.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11484987September 17, 2022
SERVICE BRAKES
Brake pedal is hard to push at low speeds
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11484784September 16, 2022
SERVICE BRAKES
At low speeds , like parking it lost all brakes. I have noticed a few times since the first. I see they had a recall for the brake vacumm pump but I cant find much on it
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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