GMC Sierra Complaints

15,732 consumer complaints on file.

#11591615May 30, 2024
ELECTRICAL SYSTEM, LANE DEPARTURE: BLIND SPOT DETECTION
Side Blind Zone Warning in Driver’s side mirror constantly alerts(turns on) when driving on a highway next to guardrails without any other vehicles nearby. Extremely disturbing at night.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11591633May 30, 2024
ELECTRICAL SYSTEM
Brake control module disconnects trailer brakes while towing. Apparently a known issue with trailers equipped with solar battery chargers which have higher charge than vehicle battery. It feeds back into the trailer brake power module causing it to shut down. The vehicle has an integrated trailer brake controller as it is specifically designed with primary function as a tow vehicle. Shutting down the integrated trailer brake controller results in loss of trailer brakes. Not having trailer brakes is critically dangerous. GM has issued a TSB #23-NA-149 specifically addressing this known defect. Unfortunately, GM refuses to authorize its service technicians to replace the defective brake controller unless they experience the defect personally - the policy is to disbelieve the customer with the defective vehicle. Effectively, this requires providing the trailer to the service tech to drive around until the brakes fail, thus creating another dangerous situation for a tech who may or may not have experience driving vehicles over 50’ in length. Thus, it would appear the best remedy is to enforce a recall to replace the defective brake controller before someone is harm by loss of brakes, since GM requires its techs to encounter a loss of brakes before authorization of replacement of the known defective unit. This happened over 25 times during a trip last week. This fact situation reveals why your Administration actually exists - to protect the public from harm.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11591650May 30, 2024
SERVICE BRAKES, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
I purchased my Sierra in 2021 and 2 weeks after purchase I got a warning for service stabilitrk and another for trailer brake system. This is very very annoying and also has my abs light on. My next issue is a code u510 for active grille shutter assembly. Please fix these issues as they are very common and unsafe. Not to mention as much ad I paid for this truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11591659May 30, 2024
UNKNOWN OR OTHER
Multi-function tailgate lowers without warning. Issue has occurred four times over the past week. The first issue resulted in cosmetic damage to the upper part of the gate.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11591188May 29, 2024
VISIBILITY/WIPER
The wiper blade motor is defective. While driving during a storm the wiper blade motor stopped working on the delayed and low settings. This was a safety issue while driving. I took my vehicle to get looked at a GM Dealer to look at the vehicle. My vehicle is only 3 years old and should not have issues with the wiper blade motor.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11591194May 29, 2024
SERVICE BRAKES
Service brake brake system comes on randomly. have to hit reset when driving. constantly
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11591269May 29, 2024
FUEL/PROPULSION SYSTEM
Over the past few years squirrels have eaten through the fuel line of the truck just above the fuel tank multiple times. As soon as the ignition switch is turned on fuel gets pumped out very near the exhaust system. The driver may not notice anything wrong immediately causing a very real fire risk. Today is the fourth time I have experienced this issue with this truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11591320May 29, 2024
STRUCTURE:BODY
When traveling out of town on the interstate approximately 70/75mph. Part of our hood/trimming deluged scraping our hood and nearly Colliding with two other vehicles. Not something that is common and seems to me a manufacture defect that GM is trying to wipe their hands of and I will not stand for that. I have been trying for about a month to get GM to repair this odd phenomenon. However they continue to give me the complete run around. It’s been absolutely impossible to get a hold of anybody the dealership will not help me. I keep receiving email from Gm saying they attempted to make contact but, I did not answer my phone. I have my phone on me at all times I have received no voicemails from them. I write and called them back. I haven’t received a return call/voicemails, or email. GM originally refer me back to the dealership when the dealership will not help me. They originally said they will order the part. I have to pay for the part and they will pay for labor. They contacted me when they had the part in hand supposedly. I sat at the dealership for three hours today for them to tell me that part was not correct and that they can’t cover it and that I would need to cover it , I am tired of the games and I want my vehicle fixed. I have been left with no choice but to file complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11591379May 29, 2024
STEERING
I just purchased a used 2021 GMC Sierra after having for a month the SERVICE POWER STEERING came on, I took it in for service and was told the part is on back order. Not to worried if the dealership and GM sold it to me that way. I am going to drive it and hope and pray that nothing bad happens. And if it does i will be getting a Lawyer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590951May 28, 2024
SERVICE BRAKES, WHEELS, VEHICLE SPEED CONTROL
Faulty Tire Pressure Management system. Looking for recalls or service bulletins.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590962May 28, 2024
ENGINE, POWER TRAIN, FUEL/PROPULSION SYSTEM
Check Engine Light came on while driving system scan states misfire cylinder 6 but resulted in the lifter being damaged as well as the cam shaft on a vehicle that has 108,000 miles. Prior to this I reported multiple times that it seemed that the transmission would slip and stuttered when on a incline and put in reverse. I was told it was a computer program issue and was charged for a software update which obviously did not fix the issue but ruined the engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590936May 27, 2024
STRUCTURE:BODY
Tailgate randomly opened while in park. This is a problem for multiple reasons. When hauling a travel trailer when you put the truck in park the tailgate falls into the jack denting the tailgate and scratching the paint. On some trailers it would be possible for the tailgate to fall onto the jack switches causing the jack to go down unexpectedly. The only way to get the trailer off is not put the truck in Park which isn’t safe at all! The truck rolls in neutral if the parking brake isn’t on. You should be able to put the truck in park and not worry about the tailgate. I called GM a few months ago when this first happened and then it stopped until it rained this weekend while camping. I told them at the time I didn’t want it falling when I started hauling the camper. They said at the time that a dealer would have to look at it and did say there isn’t a recall on this truck like on the HD trucks so is essence I basically have to hope it does it while at the dealership so they will believe me as my word doesn’t mean anything. In my case after the switch is dry it doesn’t do it. Now I have video recording as it is memorial day and pretty hard to get it into the dealer when they are closed just to have it with fine there.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590834May 26, 2024
ELECTRICAL SYSTEM, STEERING, SUSPENSION
Electrical glitches happen at both, low speeds and while on the roadway. My steering wheel tightens up and I get a message on the dashboard “Stabilitrak” and another one “assisted steering reduced, drive with care”. My vehicle even shut off on me after pulling in to a parking space after turning steering wheel completely to one side
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590543May 24, 2024
SUSPENSION
The contact owns a 2021 GMC Sierra 1500. The contact stated while driving 40 MPH, the front driver's side wheel separated and fell underneath the front end of the vehicle, causing the vehicle to veer towards oncoming traffic. The contact was able to pull to the side of the road, where the vehicle was awaiting to be towed. The contact related the failure to NHTSA Campaign Number: 21V718000 (Suspension); however, the VIN was not included. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 37,470.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590544May 24, 2024
ENGINE, ELECTRICAL SYSTEM, SERVICE BRAKES, AIR:ANTILOCK
The contact owns a 2020 GMC Sierra 1500. The contact stated while driving at various speeds, the vehicle was stuck in gear. While driving there was an abnormal burning odor coming from the vehicle. The vehicle failed to start on several occasions. There were sparks from the passenger's side front seat. Several unknown warning lights were illuminated. The vehicle was taken to the local dealer, where it was diagnosed with electrical, transmission module, wiring harness, air alternator cooler, and exhaust system failures. The vehicle was repaired; however, the failure recurred. Additionally, while driving at undisclosed speeds, there was a failure with the vault meter. The OnStar system provided an error with the antilock braking system. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 44,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590577May 24, 2024
FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP
The contact owns a 2016 GMC Sierra 2500. The contact stated that while stopped at a stop sign, an alert of "50% fuel range remaining" message appeared on the instrument panel. The contact stated afterwards while attempting to make a right turn the vehicle stalled and failed to restart. The contact had the vehicle towed to an independent mechanic who advised contact the fuel pump needed to be replaced due to metal fragments entering the oil tank. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590405May 23, 2024
TIRES:TREAD/BELT
GOODYEAR WRANGLER LT275/65R20 LOAD E TREAD ON PASSENGER REAR TIRE PEELED OFF AND CAUSED DAMAGE TO VEHICLE AND THE TRAVEL TRAILER BEING TOWED.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590485May 23, 2024
STEERING
After parking the truck in the garage, the "check power steering," light came on. I immediately lost power steering. I shut the truck off, and about a minute later started it and the power steering worked enough to turn the wheel 1/4t turn to the right and the wheel locked and never moved again. I don't mean hard to turn, I mean would not turn. Had it towed to the dealership in Fairbanks, Alaska and they verified that the wheel would not turn at all. Recommended replacement of the streeting box. There were no prior indicator lights on the truck and little warning of failure. Losing ability to control the truck could have got me in a bad accident. I understand that this was an issue and there was a GMC recall, but my truck was not part of that. The Fairbanks dealership said they never saw one lock up light that before. The truck does have a damaged title due to a house fire and the truck was parked near the garage and it melted the plastics/grill etc. Repairs were made by a certified body shop.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590231May 22, 2024
UNKNOWN OR OTHER
The tailgate was automatically dropped while trailer was connected. Destroyed my tailgate. This should never happen.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11590258May 22, 2024
STRUCTURE:BODY
On May 5, 2024, while driving my 2023 GMC Sierra truck on HWY 40 near Holbrook, AZ, the tailgate lowered un-commanded twice while driving. I called GMC and they told me that my vin is not included in the recall. There is a recall for this exact problem however GMC said it is only for GMCC truck built at a specific plant. This happened twice and did significant damage to my tailgate.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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