GMC Complaints
View complaints related to GMC. The complaints found here are submitted by actual consumers with first hand experience. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.
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2017 GMC YUKON- Whitmore Lake , MI
Rear LED taillights circuit boards broken. Disabling both Stop tail lights causing serious safety hazard. We had no clue driving around and we didn't have any brake lights another driver had to tell us. So we googled this problem and it turns out that all of 2017 GMC Yukon have the same issue. There's even multiple websites to repair them as well as auto supply stores selling replacements for $1,000 and the dealership wants $1,500. This is a real problem and GM needs to make this right and recall all of these and replace them before somebody gets hurt if they haven't already.
Source: NHTSA WEB SITE -
2024 GMC SIERRA 2500- Apex, NC
While driving both drivers and passenger side blind spot warning lights flash on and off when no cars are near. The problem is worse at night when pulling a trailer. The lights sometimes stay on or starting flashing on both side causing a significant distraction.
Source: NHTSA WEB SITE -
2015 GMC TERRAIN- Jeffersonville, IN
The contact owns a 2015 GMC Terrain. The contact stated that while driving at an undisclosed speed and coming to a complete stop, the accelerator pedal was released, and the vehicle sputtered. The check engine warning light was illuminated. The message "Reduced Engine Power" was displayed. Additionally, the contact stated that the vehicle would shut off while idling unless the accelerator pedal was intermittently depressed. The contact also stated that the vehicle had failed to respond while depressing the accelerator pedal. The vehicle was taken to Firestone on several occasions, and the high-pressure fuel pump (HPFP) was replaced 3 times; however, the failure persisted. The vehicle was not repaired. The dealer was not notified of the failure. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 130,000.
Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE -
2019 GMC SIERRA 1500- Le Roy, NY
The contact owns a 2019 GMC Sierra 1500. The contact stated that upon inspection, it was discovered that the coating on the exterior frame of the vehicle had peeled off and the frame started rusting. The local dealer was notified of the failure, but no assistance was offered. The contact was informed of a TSB for the failure, but the VIN was not included in the Extended Warranty Coverage. The failure mileage was 25,000.
Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE -
2014 GMC SIERRA 1500- Houston , TX
When I am braking at low speed my brakes start locking up and eventually do not work. This has happened on multiple occasions. I have almost wrecked multiple times I rarely drive my truck now cause it is unsafe. There is a recall on the brake booster 2014 to 2018 gmc seria but my truck vin is not included on that recall and it’s doing the exact same thing. GM recalls 3.4 million pickups and SUVs over brake pump Sept. 12, 2019 1 The recall includes the Chevy Silverado and GMC Sierra (model years 2014-2018), and affects a vacuum pump defect that may make it more difficult to brake at low speeds.
Source: NHTSA WEB SITE -
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2022 GMC SIERRA 1500- CASTLE ROCK, CO
On January 20th 2024 I was cleaning heavy dirt and mud off of my truck, after leaving the car wash and driving about 20 miles, once I parked my tailgate started to open over and over on its own. This happened again on March 4th 2024 after cleaning off a lot of dirt from my vehicle the tailgate opened on its own while my truck was parked in the garage. It opened into the garage door, when I left I did not know it was open, so when I opened the garage door the hinges on the garage door scraped and dented the tailgate as it opened. I had not pressed any buttons inside the truck, outside of the truck, or pressed the tailgate open buttons on the key fob. After intense car washes it has opened on its own each time.
Source: NHTSA WEB SITE -
2012 GMC ACADIA- La Center, WA
About 1 month ago While making a slow speed turn from a parking lot to a street the steering seemed to lock for no reason. After a brief moment the steering resumed normal function. I inspected the ignition switch and found nothing abnormal. Checked power steering fluid level, it was in the operating range. Unable to duplicate the issue at that time. On 3-9-23 while driving the vehicle started making an unusual noise coming from the engine. It seemed to be consistent with engine rpm. I believe it was the power steering pump. After stopping and starting the engine the noise was gone. A few minutes later while driving at slow speed the steering locked again, or the resistance was too great for my wife to overcome.
Source: NHTSA WEB SITE -
2012 GMC SIERRA 1500- Granton, WI
Frame rot behind gas tank truck doesn't even have 90000 Miles on it unsave to drive poor frame quality
Source: NHTSA WEB SITE -
2017 GMC SIERRA 1500- northfield, CT
on [XXX], i remote started my vehicle about 10 minutes prior to leaving work. when i left and walked out to my truck i opened the driver side door and noticed smoke in the vehicle and an odd smell. upon looking around the truck i heard a loud pop and the passenger side of the rear sliding back glass shattered. upon further investigation this has been an ongoing issue with gm trucks and even 159,000 have been recalled in Canada and there has been no recall issued in the United States. the major safety concern is that in the back seat of my vehicle i have two car seats for each of my toddler aged sons. i am just thankful that neither one of them were in the vehicle when this happened. i brought the vehicle to the dealership and they told me that there was indeed a short in the wiring going to the back sliding window and defroster but there was nothing they could do other than replace the glass. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Source: NHTSA WEB SITE -
2021 GMC SAVANA- Newtown, PA
The contact owns a 2021 GMC Savana. The contact stated while driving at undisclosed speeds, the steering wheel was stiff. The power steering fluid was leaking. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the PCM, power steering, and sensors had to be replaced. The vehicle was repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline. The failure mileage was approximately 54,000.
Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE