GMC Sierra Complaints (2015)

916 consumer complaints on file.

#11540415August 23, 2023
SERVICE BRAKES
Constant “service trailer brakes” warning on dash. I Haven’t done anything to cause it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11539555August 19, 2023
POWER TRAIN
The same part number in the other models are for recall except this model.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11538225August 13, 2023
POWER TRAIN
Transmission was shuddering and slipping and then completely went out. Would not engage any of the gears. This happened while driving through the mountains without towing anything. My family and others on the mountain were at risk since the transmission was slipping out of gear and no safe place to pull over. It had to be towed to a dealer and they confirmed the transmission was toast and they replaced it, of course not under warranty. $800 tow bill and $6.893.98 to replace the transmission at a GM Dealer...Also, had to get a rental car ($318).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11537229August 8, 2023
ENGINE
The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving approximately 60 MPH and hauling a boat, the vehicle started operating at reduced power. There were no warning lights illuminated. The vehicle was taken to an independent mechanic and the contact was informed that the push rods were bent, and the lifter had collapsed. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the dealer. The failure mileage was approximately 90,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536858August 7, 2023
STEERING
The contact owns a 2015 GMC Sierra 1500. The contact stated while driving approximately 35 MPH, the message "Power Steering Assist" was displayed, and the steering wheel became very difficult to turn in either direction. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure and informed the contact that the vehicle was not included in NHTSA Campaign Number: 14V719000 (Steering). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 131,890.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536977August 7, 2023
STEERING
The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 15 MPH and making a turn, the vehicle lost power steering functionality. A message indicating power steering failure was displayed. The contact stated that the steering wheel was extremely difficult to turn however, the contact was able to pull to the side of the road using physical strength to turn the steering wheel. The vehicle was taken to an unknown dealer where it was diagnosed, and the failure was linked to NHTSA Campaign Number: 14V719000 (Steering). The vehicle was taken to a GMC dealer, who informed the contact that the recall had already been completed on the vehicle. The dealer determined that the power steering control module needed to be replaced; however, the part was not available. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 85,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11535577July 31, 2023
SERVICE BRAKES
The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the brake pedal was firm while being depressed. The contact stated that the failure occurred intermittently while parking or while at a stop. The brake pedal failed to operate as needed. The check engine warning light was illuminated. The engine power reduced message was displayed. The vehicle was taken to an independent mechanic, where it was diagnosed that the brake booster pump needed to be replaced. The vehicle was not repaired. The vehicle was taken to the local dealer however, the technician was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 66,476.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11534924July 27, 2023
ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL, STEERING
When I turn the steering wheel, the ac turns off, lights turn off, the computer screen turns off, steering wheel gets hard and does a jerking movement. The truck turns off too and then suddenly turns on. This can cause a death. If this happens in a highway or a street where speed is high this can easily cause a death.. fortunately this has happened going at 30 mph and no one close at the time and also at a drive through fast food restaurant. It has not been confirmed by the dealer but I will soon have to take it. The only light that comes up is the StabiliTrak.. but it only lights up when it happens and then it goes away.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11533879July 23, 2023
STRUCTURE:BODY, SERVICE BRAKES, AIR BAGS
Body paint delaminating. Also, difficulty sometimes stopping vehicle extra length required to stop
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11533873July 22, 2023
UNKNOWN OR OTHER
My air conditioner doesn't work and vehicle is a 2015 GMC truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531947July 12, 2023
FUEL/PROPULSION SYSTEM, ENGINE
While driving down the highway at 60 mph, the truck stumbled then completely died. After coasting to a stop truck would not restart. Towed to a repair shop to find out the Bosch CP 4 fuel pump exploded and contaminated the whole fuel system with metal shavings. A very expensive and lengthy repair. GM has known there is issues with these parts, but has failed to recall and fails to cover repair costs. Other manufacturers using the same part have issued recalls. While I was able to safely the get vehicle to the side of the road, the failure could’ve resulted in an accident causing personal injury or property damage.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528569June 23, 2023
SERVICE BRAKES, STEERING
Problem # 1At low speeds /parking I loose power that affects steering the radio and windows. I get a message on board stability warning message. Steering become hard and can’t control/turn the vehicle Problem #2 at low speeds /parking my brakes loose power I have to press brake really hard to stop truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528088June 21, 2023
AIR BAGS
Attempts to get the part replaced have been met with long delays in gets the parts necessary even though the dealer tells me they show plenty in their warehouse in another state. I first called on 3/29/23 and was told 1-8 weeks. I called again on 6/21/23 and was told they submitted the order again on 5/11/23 and would do so again today. I tried a second dealer in St. Louis and was told the same thing about expecting months of delays on these parts. This recall is from 2022 and if parts are available, why am I not able to get the repairs completed?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11527737June 19, 2023
SERVICE BRAKES
In several occasions my brake when approaching stop sign or light and I hit my brakes more than once it goes to the floor and it become difficult to stop without having to push very hard on the brake pedal. It does it almost every time.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11527072June 14, 2023
STEERING
The contact owns a 2015 GMC Sierra 1500. The contact stated while making a left turn, the vehicle lost motive power and stalled without warning. The vehicle was not taken to be diagnosed. The dealer was not contacted. The manufacturer was contacted and stated that the VIN was not included in NHTSA Campaign Number: 14V719000 (Steering) and did not provide any assistance. The failure mileage was 120,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11525193June 3, 2023
EXTERIOR LIGHTING
Lights are too dim to drive at night. Bulbs have been replaced with 6 different styles but the lights are too dim. Bright lights shine too high to be useful. Spoke with numerous people who have had the same problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11523797May 25, 2023
SERVICE BRAKES
The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 70 MPH and depressing the brake pedal, the vehicle would not slow down. The contact aggressively depressed on the brake pedal and the vehicle was able to stop as needed. The vehicle was taken to an independent mechanic to be diagnosed. The independent mechanic determined that the vehicle had experienced an unknown failure however, the vehicle was not repaired. The dealer was not contacted. The manufacturer was not notified of the failure. The failure mileage was 50,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11523040May 20, 2023
POWER TRAIN
I am having a issue with a low milage GMC Sierra. The truck is a 2015 with 24,000 miles. When it was produced the truck had a 100,000 mile warranty but has since lasped in time. The transmission on this truck is a 6l90 which has had several know issues that gm is aware of. This service bulletin is just highlight of the issue gm bulletin 19-na-153. I've talked with several transmission shops and event saw a few posted online about the transmission issue, my issue is gm will not stand behind their product, I have contacted GM directly and gotten no where. During my conversation with the GM reps on the phone they did agree the transmission should not have blown at the milage. My truck is garage kept, doesn't go outside in the rain or snow. I know there is a class action for the Allison transmission and the 8 speed but not the 6 speed that I'm aware of.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11522004May 15, 2023
ENGINE, STRUCTURE:BODY
The body has rust coming through on the lower body panels by the rear doors of a crew cab. Have to replace the AC condenser on a 2015 gmc Denali. Looks like GMC already knows there is an issues with this, but no recall on the 6.2L sierra denalis.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11521172May 9, 2023
POWER TRAIN
Vehicle has a history of hard shifting and jumping forward under certain conditions. In April 2019, while on the highway traveling about 65 mph, the vehicle slipped out of gear and do no longer be driven. No warnings were displayed prior to the incident. The dealer replaced the torque converter and repaired a broken transmission shaft under warranty. Hard shifting and jumping continued to occur, but the vehicle went without incident for another 4 years. Yesterday, 5/8/2023, the transmission went out again while driving around 35 mph. Vehicle is currently at dealer. My research has shown there is a class action lawsuit in 26 States for transmission issues for GMC vehicles between 2015-2019. NHTSA needs to take action and issue a recall. Losing a transmission while driving is dangerous.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to GMC Sierra