GMC Sierra Complaints

15,732 consumer complaints on file.

#11568191January 27, 2024
SERVICE BRAKES
The incident occurred on [XXX]. My vehicle has 54,571 miles on it. The power brake assist function failed. I was backing into a parking space at a local fast food chain and experienced near brake failure. I had to stand, nearly full body weight pressure, on the brake pedal to get my truck to stop at very slow speed. I, again, backed a short distance of a couple of feet at the most and experienced the same issue when I tried to stop. I placed the vehicle in PARK and turned the engine and ignition key off, thinking the system possibly needed to reset. I started the truck and drove forward, very slowly, to another parking space and applied the brakes. I experienced near total brake failure again. I had my truck into Brogden GMC in Olathe, Kansas on [XXX], for general maintenance and a “brake pressure recall.” I had experienced a slight brake pressure issue on a couple of occasions prior to the recall. After the recall service was performed I did not experience a braking concern for some time. I did experience “soft braking” a couple of times after the recall was performed and attributed it worn brakes. On [XXX], at 50,596 miles, I upgraded my brakes by installing a Power Stop Z36 brake kit with slotted rotors and ceramic pads. I have not had a repeated experience of soft braking or brake failure until the [XXX] incident that I am currently reporting. It appears to me that the earlier recall did not completely address the brake failure issue with my 2017 GMC Sierra 1500 pick-up. 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
#11568131January 26, 2024
UNKNOWN OR OTHER
The info system starts to change screens and jump around. We had it on navigate it locked the screen. You couldn't touch anything then. It started messing with the controls on the -Changing it from the speedometer to music and again would not allow you to touch anything calibrated or anything along those lines. After googling it, several vehicles are having the same problem. All around 50000 miles, our vehicle has about 80000 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11567736January 25, 2024
POWER TRAIN
Transmission temperature sensor has failed. It is available for internal inspection within the transmission pan. Safety has not been in issue, but, apparently it can cause hard shifting when the sensor starts to go bad. You can also easily tell when the sensor is going bad by watching your trans fluid temp needle. It will erratically bounce up and down, sometimes slightly and other times it's big jumps, so you will not be able to tell if the transmission is overheating or running at normal operating temperature. The problem has been confirmed by a local service center. The vehicle/component has not been inspected. There has not been any problems prior to this issue. The check engine light came on 1/24/24 in the evening time. Check engine codes are P0711 & P0700. This is a known issue between 2015-2018 GM vehicle equipped with the 6.2L & 8-speed transmission. There is/was a special warranty number, #N192291660, that qualifies with the 2016 models.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11567785January 25, 2024
ENGINE AND ENGINE COOLING
The contact owns a 2015 GMC Sierra 3500. The contact stated while driving approximately 70 MPH, the vehicle abruptly lost motive power and decelerated to 25 MPH. The contact stated that the message “Engine Power Reduced” was displayed. The contact stated that the failure was intermittent, but always occurred while driving at high speeds. The contact had taken the vehicle to a local dealer however, the failure could not be duplicated. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was 48,815,
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11567893January 25, 2024
ELECTRICAL SYSTEM
Inside of car smelled like burnt electrical and crackled and then back window exploded due to short in the rear defroster [XXX] Rear Window Defroster Thermal Events GMC has indicated that there is no recall associated with this event. GMC has sent no recall or service notices to me regarding this issue and the vehicle had been at a GMC deal Jim Ellis GMC within the year. This incident caused glass to be injected into the passenger compartment causing a hazard 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
#11567657January 24, 2024
POWER TRAIN
I was driving my truck home from work, when all the sudden the car at a stop sign lurch forward, with the brake applied and was not moving, or I would have hit the car in front of me. Upon, the green light, truck started to shift and go faster, while making a whining noise, at only 26 miles per hour, then, the vehicle, tried to speed up with nothing engaging, and came to a complete stop very aggressively and abruptly, while in traffic, I almost was hit from the sudden stop. Getting to the side of the road, the truck wouldn’t move anymore, and except in rear gear. Called OnStar service and vehicle was towed to the closest GM dealership, about a mile from my house. This was on a Saturday evening, On Monday, the dealer service agent called me, had already diagnosed the problem as a failed 6L80 GM transmission, this was at 930am, asked if I wanted it repaired I said yes. The dealer called back at 3pm that same day and said the transmission had already been repaired. Which to me is a bit surprising as it needed a new transmission, which should take longer. Glad it was fixed so fast. The cost was to be around 6700 dollars. From my knowledge this is a known issue with these transmissions. My concern, is that I could have been in an accident from a known defect in manufacturing that GM knew about and did nothing to address.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11567411January 24, 2024
ENGINE, FUEL/PROPULSION SYSTEM
2022 Gmc siera 2500 Diesel Have code P20B9 And TailGate Opening By Itself
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11566879January 22, 2024
FUEL/PROPULSION SYSTEM, SUSPENSION, POWER TRAIN
Leaking Diesel fuel, Leaking oil from the rear of the transfer case, making a claunking noise at the rear suspension, My safety is at risk for a possible fire and a crash from the Leaking oil. The vehicle was diagnosed with this problems on [XXX] at Caguas Chevrolet & GMC, also called United Collection Auto. parts were ordered on that date but not arrived. 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
#11566761January 21, 2024
POWER TRAIN
Transmission has stalled many times from shifting through 1st and 2nd gear going across divided highways and nearly causing accidents, also it has a very bad shudder and hard shifting.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11566204January 18, 2024
POWER TRAIN:MANUAL TRANSMISSION:SHIFT PATTERN INDICATOR
The contact owns a 2019 GMC Sierra 1500. The contact stated that while the vehicle was parked, the shift to park message was displayed. After turning off the vehicle, there was an abnormal beeping sound heard. The vehicle was taken to the dealer but was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 86,018.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11566359January 18, 2024
ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS
The contact owns a 2024 GMC Sierra 2500. The contact stated while driving at an undisclosed speed, another vehicle drove by on the driver's side of the vehicle, and the blind spot alert light illuminated on the passenger's side of the vehicle, even though the vehicle was present on the driver's side. The contact also stated that the failure only occurred when the Adaptive Cruise Control was activated. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who was able to duplicate the failure but was unable to provide a fix. The vehicle was not repaired. The manufacturer was notified of the failure but did not assist. The failure mileage was 3.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11565685January 16, 2024
STEERING
We drove our Truck from Hartwell Georgia to Coloma Wisconsin on [XXX]. En route we drove through heavy rain. We got to Coloma on [XXX]. The truck sat outside overnight in cold weather. Temps were in the low 20's to high teens. On [XXX] I went out to drive the truck to town on errands. After starting it the steering would not move. Had the truck towed to Wheelers Chevrolet of Coloma. Weather had warmed up and the steering was working. The dealer kept the truck and let it sit outside overnight. The next morning they started it and the steering would not move. The brought the truck into the heated garage and after a hour or so the steering worked. They decided to keep it inside and dry it out. It sat in a heated garage till noon on the [XXX] at which time I took the truck to my wife's brother house and put it in a heated garage till we left on the morning of the [XXX] to head back home. Temps all day were below zero. We pulled off the road after about two hours and the steering began to bind up. Rotating the wheel got it loosened up and we elected to continue. About 15 minutes later on [XXX] at highway speed the steering began to lock up. I managed to get it to the side of the road. . Again rotating the wheel side to side for about 5 minutes got it to free up. We continued and made it home. Clearly there is water somewhere in the steering. Pretty scary having locked steering at speed. No problems in warm weather. I will be going to my GMC dealer today. Richard Kay superstore in Anderson SC. My service techs name at Wheelers Chevy was David Borre. Phone number 715-600-3358 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
#11565788January 16, 2024
UNKNOWN OR OTHER
The Flex Tailgate has on multiple occasions has malfunctioned in cold temperatures. I have had instances where I can get it open when I have vital supplies in the bed of my truck because of the Tonneau Cover being on (I have a hard cover made for this truck) and the tailgate malfunctioning. I have also had an instance where my tailgate opened (after clicking shut) while driving without the notification coming up on my dash. I could've been held liable if my equipment fell out and caused an accident. Moral of the story this truck as a lot of issues when temps are below freezing even after being warmed up for 15 minutes or longer. I wouldn't recommend this truck based on the function of the Flex Tailgate. I would prefer a classic a handle and less tech now that I have seen it fail so many times.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11565626January 15, 2024
POWER TRAIN, BACK OVER PREVENTION: WARNINGS, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Lifters Failed in November 2023 and had repaired major engine damage including 4 cylinders, cam shaft, lifters, gaskets etc. After major repair work done. Truck is now doing same exact thing in January 2024. The dealership is stating they will not look at the vehicle unless i buy a new battery. I asked them to try a used battery to see if that makes a difference. And then if it is the battery i will replace. I was hung up on after the technician doug Pedersen stated ill have a supervisor call you back.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11565402January 14, 2024
SERVICE BRAKES
When I hit the brakes it has no stopping power, hard to push brake pedal and when sitting at a complete stop it has been known to start going even though I have foot on brake.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11565311January 13, 2024
UNKNOWN OR OTHER
Remote started my truck. Went to get in my truck about 10 minutes later. There was smoke in the vehicle. The rear defrost shorted and melted a hole in the rubber seal next to my rear sliding window. The heat from the incident cracked and spider webbed my rear window.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11565063January 12, 2024
SERVICE BRAKES, HYDRAULIC
The contact owns a 2017 GMC Sierra 1500. The contact stated that while coming to a stop at slow speeds, the brake pedal was depressed; however, the brake pedal felt spongey, causing the braking distance to become extended. There were no warning lights illuminated. The contact learned of NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic) and linked the failure to the recall. The dealer was contacted, and it was confirmed the VIN was not included in the recall. The vehicle had not been taken to the dealer. The vehicle had not been diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was 60,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11565112January 12, 2024
ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY, ENGINE
The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 65 MPH, there was a loud pop in the engine compartment. The vehicle was steered to the side of the road where condensation was observed in the middle of the road. The vehicle was towed to a dealer where it was diagnosed that the radiator and transmission needed to be replaced. The vehicle was not repaired. On another occasion, while driving at approximately 20 MPH, the vehicle lost motive power. The vehicle was towed to a dealer where it was determined that the engine needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 170,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11565153January 12, 2024
SEAT BELTS
On my 2014 GMC, the front driver side seatbelt was not latching. We had to finagle to latch it. To which this point we were unsure that we were safe. So I brought the GMC to the GMC Rosedale dealership and after further investigation they charge me $522 to repair replace the belt. I told them it’s a safety issue, but they seem not to care, I also contacted GMC corporate and they are investigating this. So if it state law that you have to wear a seatbelt for your safety, why do dealerships charge you to repair or replace them.?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11565013January 11, 2024
ENGINE, POWER TRAIN
I would like to bring to your attention an alarming incident that occurred on January 3, 2024, with my truck. While accelerating onto the highway, the engine and drivetrain failed suddenly, posing a significant safety risk. The failure left the engine incapable of functioning properly, which could have resulted in a catastrophic accident. Seeking answers about the cause of this dangerous malfunction, I promptly arranged for an inspection by RNZ Concepts. After evaluation, they suspected a potential problem with the hydraulic lifter or camshaft. It is baffling to note that, other than an initial transmission replacement, there were no further indications of any underlying issues, as the truck is regularly serviced. Additionally, within 60 days of purchasing the vehicle, similar issues arose, requiring additional repairs that were paid out-of-pocket at the time. Now, the vehicle is once again out of commission due to persistent GMC failures. The estimated repair cost is expected to be between $6,000 and $10,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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