GMC Sierra Complaints

15,732 consumer complaints on file.

#11532347July 14, 2023
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: ASSIST
On March 22, 2023, my wife and I purchased a new 2023 GMC Sierra 3500 Denali from Coast Buick GMC. Before purchasing, we asked the salesman if it had adaptive cruise control and lane keep assist, and he said yes and showed us the buttons and explained how they worked. We purchased the truck because it had these features. Four days later, on a trip out of town, we found that the adaptive cruise control and lane keep assist did not work. We looked online and saw similar GM vehicles with the same buttons, showing how to use the systems, but ours didn’t work. During our trip, the salesman texted me and said he needed me to sign a document. I told him that we couldn’t figure out the adaptive cruise control and lane keep assist, and Sal responded in writing via text, “OK be my pleasure to show you the adaptive cruise and lane keep assist.” We came into the dealership the next day, on March 28, 2023, with only 251 miles on the truck, and were told it didn’t have these features. The Dealership and GM have refused to make this right. GM’s design of the buttons in the truck for the warning systems closely, if not exactly, match the buttons for adaptive cruise control and lane keep assist options in other GM vehicles, which is very misleading. My brother-in-law has a 2020 model and he still thinks his has adaptive cruise control and lane keep assist, but they just don’t work very well, even after I told him it doesn’t. Today, while dropping off my truck at the GM Service Department for repair, the Service Department Representative said a lot of customers were told their GMC HD truck had lane keep assist and adaptive cruise control. This is a fraudulent or misleading design, which could result in serious injury or death.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11532052July 13, 2023
ELECTRICAL SYSTEM
Infotainment System will change stations, stop navigation / change navigation destination, stop / start playing on its own. Examples of recent issues: 1) While driving from southeastern Ohio to West Lafayette, IN, the navigation system (Apple play through the infotainment system) stopped navigation to entered destination and changed destination to home. This occurred while in Indianapolis and caused us to reroute until we noticed the issue. 2) While playing music from bluetooth, the Infotainment system changed from media play to radio play. The change in volume and music caused me to swerve suddenly while in downtown traffic. 3) The radio changed stations continuously for 5 minutes, changing screens and stations for 5 minutes until I finally shut it off. These are just a couple of the examples. Something happens every time I am in the vehicle, the extent varies. All of these situations cause the driver to lose focus of driving, and also create a shock when first happening. After investigation, I have found that many owners of 2017-2020 GMC vehicles with the Infotainment system have the same issue. Some have fixed the problem by installing new systems (GM offers an "upgraded" system that doesn't have the issue... Coincidence?). This leads me to believe that GM acknowledges there is an issue but will not fix it as a recall. I have video of the latest occurrence, but the site will not allow the file type to be uploaded.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11532174July 13, 2023
SERVICE BRAKES, ELECTRICAL SYSTEM
When attached to a trailer with solar panels, the truck will intermittently disconnect the trailer electronics which disables the trailer brakes and trailer lights. This is because the solar energy is back flowing to the truck via 7 pin connector and overloading the circuit. Having a truck disable the trailer brakes and lights intermittently is very dangerous. Earlier model years of this truck do not suffer this issue. GM is aware and has TSB but no solution has been found on the truck side without disabling the solar panels on the trailer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531749July 12, 2023
UNKNOWN OR OTHER
Bose radio randomly goes to maximum volume and you cant turn if off. This has happened twice and nearly cause wrecks each time trying to get out of traffic to turn the vehicle off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531780July 12, 2023
STRUCTURE:BODY
In past three weeks, the tailgate just drops down for no reason at all. Sometimes going down the highway, other times while I am parking vehicle the Tailgate Lowers itself automatically.????Is their a recall out for this, if not should be as you can lose portions of a load in the bed, right out in highway in traffic.....What action if any should I take at this point.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531861July 12, 2023
ENGINE, POWER TRAIN
Oil cooler line detached from crimp while driving at highway speeds forcing the vehicle to an emergency stop on the side of the road. All oil pressure was lost immediately and entire underside of vehicle including tires, brakes, and wheels were all coated in oil. Known issue for same year, make, and model that has already been listed from NHTSA. But, apparently this VIN was not in the affected range.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531927July 12, 2023
ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM, ENGINE
The contact owned a 2019 GMC Sierra 1500. The contact stated while driving 60 MPH, the A/C stopped working. Additionally, the contact smelled an electrical wiring burning odor. There was no warning light illuminated. The contact then noticed smoke coming from under the glove compartment. The contact stated that he pulled to a carwash and exited the vehicle. An explosion occurred under the hood and the vehicle caught on fire. The contact stated that the vehicle burned significantly. The contact was able to extinguish the fire with the assistance of the fire department. A police report was filed. A fire department report was filed. There was no injury sustained. The vehicle was towed to a tow yard, where it was totaled. The dealer was notified of the failure. The manufacturer was not notified of the failure. The failure mileage was 49,653.
Crash:
No
Fire:
Yes
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
#11531556July 11, 2023
ELECTRICAL SYSTEM
Battery - Total discharge of the battery. 2023 GMC Sierra Denali purchased in Jan 2023. In July 2023, vehicle with 3800 miles door would not open, engine turn on, etc with electrical system completely inoperable. Upon checking the battery, it had 0% charge.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531600July 11, 2023
SERVICE BRAKES
Trailer brake system continues to pop up “service.”
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531285July 10, 2023
AIR BAGS
The contact owns a 2013 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 21V054000 (Air Bags). The contact took the vehicle to the local dealer and had the recall repair performed February 25, 2021. The contact stated the air bag warning light had since illuminated. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531352July 10, 2023
POWER TRAIN
Transmission problems
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531177July 9, 2023
ENGINE
On December 29, 2022 I stopped at the bank for 2 minute and when I got back to my truck I noticed smoke coming out from under the hood. I immediately called 911 and luckily some nice people were able to get my hood up safely and the bank provided a fire extinguisher before the fire trucks arrived. It was engulfed in flames. The fireman said it appeared the fire started in the wiring at the engine. I had a recall fixed a while back for the engine block heater so I was worried maybe they didn’t repair the recall. A week after the fire I received a 2nd recall in the mail for the same recall. Today is July 9th and my truck is still in the shop waiting on parts that have been on back order this whole time. GMC told my insurance company they were sending someone down to look at it. Never heard anything back. This could have been so bad had I been driving it when the fire started. So here I am going on 7 months without my truck all while paying $942/month. I just want something to be done to speed up the repairs that my insurance has paid. Estimate is $22,000
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11530042July 2, 2023
POWER TRAIN
While accelerating from about 45 - 60mph the truck made a loud bag and the rear tires locked up causing the vehicle to skid. This happened 4 times and nearly caused the cars behind me to crash.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529706June 30, 2023
UNKNOWN OR OTHER
I sent my vehicle to the dealer, Brandywine GMC dealer in Bradywine MD. To have my fluids topped off upon receipt of my truck the next day my truck broke down. I sent my truck back to the dealer where they said Def was placed into the diesel tank by me, which was a lie. I filed an insurance claim because the dealer accused me of putting Def into my diesel tank. The insurance company paid to have everything fixed, however shortly after receiving my car I was traveling the interstate and my speed was cut back to 15 miles per hour per the trucks computer, which almost caused my vehicle to be rear ended. I took the truck to Alexandria va GMC because the codes were telling me that the injection system default , which Brandywine was supposed to have fixed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529759June 30, 2023
TIRES
The contact owns a 2019 GMC Sierra 1500 equipped with Nitto Tires, Tire Line: Ridge Grapplers, Tire Size: 275/65/R18, DOT Number: (N/A). The contact stated that upon having the vehicle State Inspected, the State Inspector observed excessive dry rot to the tread of all four tires. The vehicle was taken to the dealer, who confirmed the State Inspector's assessment however, the tires were not replaced. The manufacturer was notified of the failure but required the contact to cover the cost of replacing the tires. The failure mileage was 15,000. The consumer stated that they were given a partial credit to buy a new set of tires of the same brand. They also stated that a recall should be placed on these tires due to the fact that the other set of tires has the same exact problem. The consumer is requesting a full refund so that they may purchase new tires from a different brand.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529615June 29, 2023
STRUCTURE:BODY
The contact owns a 2018 GMC Sierra 1500 Denali. The contact stated while exiting a parking lot, the passenger’s side running board detached from the vehicle causing minor damages to the passenger’s side of the vehicle. There was no warning light illuminated. The dealer was contacted but provided no assistance and advised the contact that the running board needed to be replaced. The vehicle was not repaired. The manufacturer was contacted but provided no assistance. The failure mileage was 35,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529671June 29, 2023
POWER TRAIN, SUSPENSION, STEERING
The truck has developed a shake that can be felt in the floor boards, seat, and steering wheel at highway speeds. It’s has spent several months at dealerships without being fixed. I have replaced tires, wheels, shocks, upper control arms, and the transfer case without success.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529539June 29, 2023
UNKNOWN OR OTHER
When towing a trailer a notice to service trailer brakes comes on and the trailer brakes are disabled
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529546June 29, 2023
POWER TRAIN, ENGINE
The contact owns a 2018 GMC Sierra 1500. The contact stated while driving from a complete stop and depressing the accelerator pedal, the engine revved but the vehicle hesitated to respond. There was no warning light illuminated. The contact stated that the failure reoccurred several times. The vehicle was taken to the local dealer, where it was diagnosed that the transmission was slipping and needed to be replaced. The vehicle was repaired. Additionally, the contact stated while driving 60-65 MPH, the vehicle started vibrating and shuddering. The check engine warning light was illuminated. The contact was able to drive to her nearby destination. The vehicle was towed to a second dealer Liberty Chevrolet (105 Cooley Way, Villa Rica, GA 30180) where it was diagnosed that the driver's side lifters had failed and needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was towed to a third dealer, Prince Chevrolet Buick GMC of Albany (2701 Ledo Rd, Albany, GA 31707) where it was diagnosed that passenger's side lifters needed to be replaced. Additionally, the dealer diagnosed that the camshaft needed to be replaced. The contact was advised that the warranty would cover a portion of the cost of the repair and she was responsible for the balance. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 84,267.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to GMC Sierra