GMC Sierra Complaints

15,732 consumer complaints on file.

#11487533October 2, 2022
SERVICE BRAKES
Hi I purchased this used 2017 GMC Sierra Denali on October of 2021 it’s been just only one year and while on the road with my trailer attached , I suddenly got a pop up on my display saying “service trailer brake system “ which caused me to be distracted with the chime and the warning being displayed repeatedly and overall left me with no power at all to my trailer brakes I would like to have this recalled and fixed at little to no cost due to the fact of the cheap and unsafe parts that are installed on these types of trucks by GMC
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11487126September 29, 2022
POWER TRAIN
My truck goes into “neutral” or doesn’t have power while driving at times and can cause a car crash.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486921September 28, 2022
SERVICE BRAKES
At low speeds excessive brake pressure is required to stop my truck. Other GM trucks have been recalled for this issue, but i am told my vehicle is not included.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486937September 28, 2022
WHEELS
I had a blow out on my rear tire on my 2020 GMC Sierra 3500 AT4 truck while travelling down the highway while pulling my 43 foot RV fifth wheel toy hauler. The vehicle had 21,000 miles on it. The tires and wheels are Goodyear Wrangler LT275/65R20 E rated tires. The problem is i changed the tire to find i had a a MICHEllin LT 275/70R18 tire for a spare that i changed. This effected the ABS and was hard pulling my RV back home for another 40 miles. Under NHTSA Campaign number 21V578000 GM recall number N212329780 there was an issue with the spare tire in the sierra 1500 and 2500 trucks but not mentioned in the 3500. This was a huge safety issue for us to pull the truck home as we had to drive at 35 mph for 40 miles on the highway. GM should not be putting a smaller tire/wheel as a spare on a large truck. One side is significanlty lower than the other when the two different tires are on the back of the vehicle.
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
#11486643September 27, 2022
POWER TRAIN
Experienced heavy vibration or shudder through transmission once fluid got to around 145 degrees. Also transmission has rough shift on the first shift of a drive cycle. When I started to research I found many of the same issues reported with 8 speed transmissions. I’ve also read about the issues with the lifters not working for the active fuel management system though I haven’t experienced that yet. The replaced my transmission fluid at the dealership under the powertrain warranty. This issue showed up at around 35,000 miles, so I am very worried about the safety and reliability of this engine and transmission.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486201September 24, 2022
VISIBILITY/WIPER, UNKNOWN OR OTHER
The driver-side mirror on my 2021 GMC sierra is unusable at freeway speed. When traveling at freeway speed the glass moves due to wind and causes the reflection in the mirror to be blurry. The reflection from the mirror is blurry to the point that I'm unable to identify objects in the mirror and it is difficult to gauge size and closing speed of any objects in the mirror. The issue has been with the vehicle since I purchased it new in June of 2021. The issue has been reproduced by two different dealership service centers and the entire driver-side mirror assembly has be replaced twice with the issue persisting. I have videos showing the issue but they are too large of files to upload on this form.
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
#11486180September 24, 2022
FUEL/PROPULSION SYSTEM
The vehicle shut off while driving. It turns over fine but will not crank. Later cranks but again will shut off and not start. This could get me killed on the interstate. It is pulling trouble code P129F fuel pump power control module. This is a 2020 GMC Sierra AT4 with a 6.2 motor with 80,000 miles on it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11485955September 22, 2022
ELECTRICAL SYSTEM
Service brake lights come on. Brake pedal locked up and lights dimming and transmission shifting irrelevant
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11485624September 21, 2022
SERVICE BRAKES, UNKNOWN OR OTHER
I towed a U-Haul trailer for four hours from Winter Springs, FL to Tallahassee, FL 08/18/2022. On the way back to Winter Springs, FL on 08/21/2022, I began to hear the dings and a message to service the trailer brake system. I had the vehicle looked at to determine the problem. The fuse was determined to be good, the ground wire was secure and not damaged, and the relay was functioning. I have been told that it may be a defective wire harness which could lead to other safety issues while operating the vehicle. The constant dinging and the blocking of vital messaging by the warning is a distraction and safety issue. A recall should be issued to correct this safety defect.
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
#11485754September 21, 2022
POWER TRAIN
The contact owns a 2017 GMC Sierra 1500. The contact stated while driving approximately 45 MPH and slowing while exiting the highway, the vehicle started to lose forward momentum and lurch forward. The contact had not depressed the brake pedal but instead attempted to accelerate however, the RPM increased but the vehicle lost motive power. The contact stated there was no warning light illuminated. The contact had taken the vehicle to a local dealer where it was diagnosed and determined that there were no mechanical issues found. The vehicle was not repaired. The contact stated that the failure had become recurring. The manufacturer had not been informed of the failure. The failure mileage was approximately 69,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11485770September 21, 2022
AIR BAGS, SEAT BELTS
NHTSA Campaign ID 21V245000 Truck is issuing a service air bag alarm, was my truck given wrong part on original recall. Purchased 2 months ago
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11485406September 20, 2022
POWER TRAIN
The exhaust system is directed to the rear of the vehicle and when towing causes extreme heat to build on the item being towed, in my case a 5th wheel camper. The heat has melted the trim on my camper and is a potential fire hazard.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11485562September 20, 2022
SUSPENSION
The frame is so rotted it will not pass state inspection.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11485572September 20, 2022
ELECTRICAL SYSTEM, POWER TRAIN
The fuse box fails to give power to the vehicle causing it to stall at any given moment which can cause an accident or even death if it’s struck in traffic by another vehicle or loss of control because of no power to steer your vehicle
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
#11485362September 19, 2022
SERVICE BRAKES, STEERING
I start my car and I went to pull off and the steering wheel locked up and I couldn’t turn it and it was just stuck going to sit power steering EC something. And then came home parked the car few days later try driving it and then the ABS brake light came on warning me not to go over 65 mph and my brakes pad feel really loose now.
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

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