GMC Sierra Complaints

15,732 consumer complaints on file.

#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
#11536829August 7, 2023
POWER TRAIN
Transmission shifting is at times confused causing the vehicle to jump forward shifting to first gear. It pushes your vehicle 2-5 miles an hr faster when slowing down. The transmission also does the opposite when letting off the accelerator, shifting fast to a lower gear slowing the vehicle down quickly in a jerking motion at times. I have an 8 speed transmission. GMC dealer is replacing my torque converter, stating this may fix the issue, but it is a safety concern.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536780August 6, 2023
VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
I bought a 2023 GMC Sierra Elevation pickup truck and I need towing mirrors and GM will not sell me them. They offer them if you order a truck which takes a long time. I had to buy my truck off the dealers lot because I had an accident with my previous truck. I tow a 34' long 8' wide travel trailer and feel it is a safety hazard not having towing mirrors to safely see, drive and maneuver my travel trailer driving. I don't buy any excuses that they're not available due to shortages. I talked to my dealer, GMC customer support who also transferred me to their accessory representative who wouldn't talk to me because I wasn't a dealer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536794August 6, 2023
ENGINE, POWER TRAIN
While driving my Vehicle down Interstate 20 in Odessa TX the engine locked up and quit running at 70 mph in traffic. The truck is 13 months old with 17,000 miles on it. No warning lamps or alarms prior to the truck just shutting down. It was towed to the nearest GM Dealership and the Maintenance facility was able to diagnose that the motor was locked up. It was towed back to the purchase dealership in Shreveport LA at owner expense of $2,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536707August 5, 2023
UNKNOWN OR OTHER
I have only owned the vehicle for about 5 months now and well it just started seeming like the transmission is starting to slip while also making a noise and just struggling to find what gear to stay in. I have service the car per the gm manual and I don’t drive the car anywhere but to work and back and that’s it. So disappointing that in going to have to replaced the transmission so soon.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536524August 4, 2023
STEERING
The contact owns a 2014 GMC Sierra 1500. The contact stated while exiting his garage and making a right turn, the steering wheel became difficult to turn. The contact stated no warning light was illuminated. The contact took the vehicle to an independent shop but was unable to diagnose the failure. The contact took the vehicle to the local dealer, where it was diagnosed with the power steering module needed to be replaced. The vehicle was not repaired. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 18V586000 (Steering), however, the VIN was not included. The manufacturer had been informed of the failure. The failure mileage was approximately 55,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536563August 4, 2023
ENGINE
The contact owns a 2019 GMC Sierra 1500. The contact stated while driving 25 mph, the oil pressure low/turn vehicle off warning light was illuminated. The contact was able to park the vehicle at a near parking lot. The contact exited the vehicle and hear an abnormal noise exiting under the vehicle and saw an oil leak. The contact stated her father-in-law came to the location to add oil but the vehicle keep leaking. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with the engine cooler line needed to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 84,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536339August 3, 2023
UNKNOWN OR OTHER
Unknown
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11535994August 2, 2023
UNKNOWN OR OTHER
We purchased a new GMC truck 1/27/23. Immediately there was a problem with a bad vibration. We first took it in for service 2/2/23 at 178 miles. The tires were balanced several times. Then they completely replaced the tires. The vehicle still vibrates at highway speeds. We took a trip in June that was a 6.5 hour trip. The vibration seems to get worse going up big hills. So when we returned we scheduled the sixth service visit. We took the truck in July 5th to Darrell Waltrip GMC. They kept our truck for 22 days. The first day, they asked us to come in and ride with the service department. He saw how bad the vibration was. He told my husband it seemed to be coming from beneath the truck and it was not the tires. GM made them swap tires and wheels. That did nothing. Talking to the service manager one day and he was telling us about occasionally “rare vibrations” and having to replace something in the transmission. At the end of that conversation, he called us by another name. Apparently another customer was having this “rare vibration” as well. An engineer finally showed up and drove our truck. He said it’s normal for a truck to have a severe vibration and the other new trucks on the lot does the same. I know there are class action lawsuits regarding the “Chevy shake”. Our year model is pending a new lawsuit. After researching, it seems they have produced vehicles for years that have driveshaft issues. They also had problems with Goodyear tires. We feel they are ignoring a long time problem that they obviously are aware of. Every other manufacturer can produce a truck that doesn’t vibrate at highway speeds or when in a bind going up a bigger hill. We worry something is going to break going down the road. We requested they declare the truck a lemon and repurchase but GM refused the request.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536012August 2, 2023
ELECTRICAL SYSTEM
The transmission control module failed while towing my trailer. I had my family loaded in the truck and the failure happened in a busy intersection, nearly causing several accidents as I was unable to move the vehicle. Now I’m told that these TCM’s are on back order with no repair date known. My truck has already been down for a month now and I’m told this could be up to a year waiting for the part. I’m told that there are thousands of these on back order and GM is doing nothing to fix it. This is inexcusably dangerous. These modules have an unprecedented failure rate and give no warning on when they will fail as they are an electronic component. You could be left stranded in an extremely dangerous intersection like I was with my family with no way to move, or on some dark canyon road. This issue must be addressed! GM needs to take on the responsibility and accountability to ensure that these TCMs are replaced with a reliable part. Trucks from 2007-2015 are all susceptible to failure. That is a massive amount of vehicles! Help us get this problem fixed!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536038August 2, 2023
ELECTRICAL SYSTEM, POWER TRAIN, VEHICLE SPEED CONTROL
Failed TRANSMISSION CONTROL MODULE (24256861). While driving in the early morning hours (darkness) taking my child to school, I was navigating through a busy intersection when the vehicle surged and then made a loud metal on metal sound, feeling as if someone had struck me from behind. At that point the power train became inoperable, stranding us and coming very close to being first, struck from behind and then from cross traffic. The vehicle was/has been inspected by a GM technician at Starling Chevrolet, St Cloud, FL and the TCM was found to have failed (trouble code U0101, lost communication with TCM). It has been at the dealership for going on four months awaiting the production of a replacement part(TCM). There was no prior indication that the TCM was about to fail. Upon failure, all lights on the vehicle display flashed and the indicator for the vehicle drive position was lost (P, R, N, D), no longer visible.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11535778August 1, 2023
SERVICE BRAKES
Power brake booster failed, truck would not stop in a timely manner
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11535448July 31, 2023
EXTERIOR LIGHTING
The contact owns a 2023 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed at night on an undulating roadway, the contact noticed that due to the narrow vertical area of illumination of the head lights, front visibility was severely reduced, with the lowest portion of the area in front of the vehicle receiving little to no illumination. The contact stated that the failure was not present while driving on a flat roadway. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure but was unable to provide any assistance. The failure mileage was 1,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11535519July 31, 2023
SUSPENSION
The contact owns a 2020 GMC Sierra 1500. The contact stated while driving out of the driveway, the front passenger’s side wheel separated from the vehicle. The vehicle was towed to the dealer and the contact was informed that the upper control arm ball joint had fractured and that the front upper control arm needed to be replaced. The contact was informed that the vehicle was not included in NHTSA Campaign Number: 21V718000 (Suspension). The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 41,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11535523July 31, 2023
POWER TRAIN
Transmission has created shuttering at speed and jarring total stop decelerating from 2nd into 1st gear. Beyond the transmission this vehicle completely stopped and lost power at 55 mph due to faulty valve lifters and pitted cam lobe. These were two separate incidents. Transmission cause lose of power on incline. Valve lifters cause lose of power at high speeds. The dash board read outs no longer worked and I was on a Highway without the ability to maintain speed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11535542July 31, 2023
ELECTRICAL SYSTEM
While driving on Saturday, July 29th, I went to make a right turn @ intersection of Nottingham Way onto Ledo Rd. The vehicle started jerking and suddenly shutoff. I had no power steering, No power brakes. I had to manually steer and stop the truck into the median, while avoiding oncoming traffic. I got the vehicle to stop. I tried to restart and the engine turned over, but would not start. I contacted the local Chevrolet dealership, and was told they don't work on anything older than 2013 vehicles. I had the truck towed to the house. After further investigation, there was a service bulletin 14515B, that replaced 14515A. The Safety recall stated CHASSIS ELECTRONIC CONTROL MODULE INTERNAL CONTAMINATION. So GM is aware of this issue, that could have caused an accident. The local dealership is denying that my truck is involved in this recall. They knew of the problem and never contacted me about this issue. This is a severe SAFETY issue. GM should be responsible for repairing a defective Control module as they knew of contamination as of January 2015. This almost cause multiple head on collisions.
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
#11535648July 31, 2023
STEERING, ELECTRICAL SYSTEM
Electronic power steering stops working randomly which makes it nearly impossible to safely drive the vehicle. The strength needed to turn the vehicle is so great that the steering wheel elevation lock fails and the wheel slams to the lowest limit of travel. Problem started around 50,000 miles and was only a warning that went away as soon as I got in the truck again. However reappeared today and the steering went out this time. The GM dealer in Mexia Texas didn't know what was wrong, I am taking it to a dealer in Corsicana tomorrow. This is a known problem that GM has had in the past however my vehicle has no active recall to make my truck safe free of charge. This puts myself and other drivers at risk because there would be no way to rapidly maneuver the vehicle to avoid a colision.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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