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.

  • 2016 GMC ACADIA
    - Salt Lake City, UT

    The contact owns a 2016 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2020 GMC SIERRA 3500
    - St. Helens, OR

    The contact owned a 2022 GMC Sierra. The contact stated that while her husband was driving at an undisclosed speed, the vehicle collided head-on with another vehicle that ran a red light. The air bags did not deploy. No warning lights were illuminated. A police report was filed. No injuries were reported, but the contact and her husband sought medical treatment for various bruises caused by the seat belt at a later date. The vehicle was not taken to the dealer or an independent mechanic but was instead towed to a tow yard. The vehicle was not repaired. instead deemed a total loss. The manufacturer was not notified of the failure. The failure mileage was 25,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2018 GMC SIERRA 2500
    - Las Cruces, NM

    While braking ( after being on the highway) all dash gauges turn black, radio shuts off, AC shuts off. Service Stabilitrak light comes on when dash flashes back on. While driving AC turns off, Radio turns off same stabilitrak warning flashes, speedometer turns off. Power steer control went out while trying to turn. Truck put itself in 4 wheel drive when I turned on the trailer assist. Parking assist periodically turns itself off.

    Source: NHTSA WEB SITE
  • 2016 GMC ACADIA
    - Oxford, FL

    The contact owns a 2016 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2018 GMC YUKON XL
    - Simpsonville, SC

    Engine Valve Lifter for cylinder 3 had failed and Camshaft lobes damaged. Error codes of P0300 and P0303. Vehicle had 67,049 miles when I brought it in to be repaired at Park GMC in Greenville, SC on 12/28/2022. GMC has the lifters (they replaced all 8) and the camshaft. Failure happened while on I40 in the Smokey mountains at night while driving back from Dollywood with my family. Engine produced a gassey sputtering sound and I lost some power but only noticeable under acceleration. Had another lifter failed due to the worn camshaft lobes, we could have easily been rear ended. A year prior to the failure (September 2021), I had taken the vehicle to a Wakefield Buick GMC and Parks Buick GMC to be inspected due to a shake at idle. Both dealerships said there were no codes and they didn't know what was wrong but they could feel the shake/vibration intermittently at idle. In November of 2022, I got the P0303 error code and took this vehicle to a private mechanic (since dealerships previously said nothing was wrong) who diagnosed an issue with the fuel injector for cylinder 3. I had mechanic replace all 8 injectors and he cleared the code. About 150 miles later (while on I40), the code came back. I took this vehicle back to the private mechanic and after several weeks with my vehicle, he refunded me the labor and said it was probably an issue with the lifter but he didn't have time to take apart the engine. I then took this vehicle to Parks GMC in Greenville, SC where they diagnosed a lifter and camshaft failure. Lifters and camshafts should not be failing in vehicles with under 100k miles.

    Source: NHTSA WEB SITE
  • 2014 GMC ACADIA
    - Santa Fe Springs , CA

    1.- Found water in the doors electrical connectors, the radio, alerts, blinkers sounds stops working and makes an electric short circuit sound. Informatic radio systems works on and off. 2.- break pedal with unusual play this make the stop lights turn on all the time and triggers the stabilitytrack system fails the car it’s like speeding up and down. 3.- the previous problem play in the break pedal triggers a transmission malfunction Does not change gears and makes the engine loose power preventing a major damages but at same time it’s very dangerous while driving because we never know when it will happen the failure.

    Source: NHTSA WEB SITE
  • 2017 GMC SIERRA 1500
    - Bush, LA

    Transmission issues! Very hard shifting! Feels like someone ran into me from behind. Shutters while crushing at 45-48 mph. Vehicle shakes from transmission issues!! GMC will not do anything about it!

    Source: NHTSA WEB SITE
  • 2012 GMC ACADIA
    - Bluefield, WV

    No warning light when transmission went out. Traction control/stabiltrac service light came on, doors locking and unlocking, not stating what gear acadia was in. Check engine light eventually came on, after it stalled twice on highway. Vehicle is at gmc dealership service department and they are saying its not communicating and are checking wiring harness wires. I have replaced transmission and torque converter and now i dont know what to expect now. Only had it for 3 years so far. I almost got rear ended when it stalled twice before backfiring and a rough swift shift.

    Source: NHTSA WEB SITE
  • 2019 GMC SIERRA 1500
    - Festus, MO

    The lifter valves for the dynamic fuel management system have failed twice resulting in an immediate loss of power, rough driving, and low speed. To replace the first time, it cost $3500 at a mechanic. The 2nd time that it happened (8 months later), we now have to have the engine replaced and it cost almost $10,000. GM has refused to take any ownership in these faulty lift valves and someone is going to lose control of their vehicle when this occurs.

    Source: NHTSA WEB SITE
  • 2015 GMC ACADIA
    - Mesa, AZ

    The contact owns a 2015 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags) however, the part to do the recall repair was not yet available. The local dealer was contacted, and the contact was informed that the part for the recall repair was not yet available. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE