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.

  • 2019 GMC ACADIA
    - Dayton, MN

    Park to shift issue - the vehicle did not register that I was in park, jerked hard when trying to place in gear, did not register the PROPER gear (reverse, neutral, drive), would NOT unlock doors to let passengers out even if it were an emergency. Seems to be triggered on inclines but have also been having issues on flat ground. Other Acadia's apparently have a recall for this issue but my VIN does not register as recalled which is not acceptable. https://www.quillarrowlaw.com/blog/gmc-acadia-shift-to-park-recall-what-owners-need-to-know/ THEN trying to accelerate on road it acted as though in neutral, would only barely function in low gear. Again, gear shifting did not respond. The fab did not register to unlock the car (it has a new battery) or the trunk, or start the car just prior to the issue revealing itself.

    Source: NHTSA WEB SITE
  • 2021 GMC SIERRA 1500
    - MAGNOLIA , AR

    THE ENGINE COMPLETELY SHUTS OFF WHEN I STOP AT A STOP SIGN OR STOP LIGHT. I HAVE BEEN STUCK IN TRAFFIC INTERSECTIONS ON SEVERAL OCCASIONS UNABLE TO MOVE WHEN THE LIGHT TURNS GREEN. EVENTUALLY THIS WILL LEAD TO ME GETTING REAR ENDED AND PUSHED INTO IN THE MIDDLE OF AN INTERSECTION. MY LIFE IS IN DANGER WHEN I DRIVE THIS VEHICLE. I GOT MY ENGINE REPLACED AND STILL THE SAME ISSUE IS OCCURRING WITH THE AUTO STOP AND START SYSTEM.

    Source: NHTSA WEB SITE
  • 2022 GMC SIERRA 1500
    - Deer Park, TX

    I reported problems with my truck to Beck and Masten South GMC. I was put off a number of times with ridiculous excuses. My vehicle sat in the shop for a month to get my OnStar safety equipment repaired. I also had arguments with them regarding the oil light coming on and it burning excessive amounts of oil. I was told this was normal. I know better. Also, I needed to get it back into the shop for service and inspection for a squeeling noise under the hood. And to have them check the oul consumption. I was told it idle too often, and this was the reason oil was dissapearing. I was told they would put me on the loaner list so I could have means to get to my oncologist for cancer care. Well, I called numerous times because they never furnished a loaner for these issues I was told a third, then forth time I was next in line for a loaner so I could drop it off for repairs and recall work. After 8 months of these lies I finally went to Monument Chevrolet. Beck and Masten never intended to help me. Total I had tried and was told by newer service advisors, the manager, and GMC this would be remedied over 10 times in over 6 months. I finally gave up and moved on to never return to this dealer I had purchased two brand new GMC 1500 trucks from in a two year time frame. I did get my OnStar gateway repaired by replacement. It had stopped working again,shortly after getting it back. I kept getting put off. They stated it needed another Gateway for OnStar. I kept calling,and was told they would contact me ince it came in. I ended up troubleshooting the entire modem/router assy. I found inconsitant configuration parametrs. So, I reconfigured it all from start to finish after clearing the memory by taking battery cables off and allowing it to power down and clear memory. Then I did perform a reconfiguration and username/password change as well. I repaired it myself. The Onstar has never acted up again. These were my first issues. I had to take it to Monument Chevrolet for service

    Source: NHTSA WEB SITE
  • 2021 GMC SIERRA 1500
    - Vineland, NJ

    I believe the torque converter is failing. While driving approximately 38 mph and also 48 mph up to 51 mph the vehicle have a vibration feeling like driving on a rumble strip. If you maintain the same speed, the vibration continues if you speed up, slow down, or let off the gas it goes away. There are so many detailed explanations on forums and social media from other customers experiencing the same problem, but not seeing any recall made by GMC.

    Source: NHTSA WEB SITE
  • 2025 GMC SIERRA 1500
    - South Jordan, UT

    I stopped at a stoplight and my truck shut off, the doors unlocked and then immediately restarted and then came up with a bunch of errors telling me that my brake system failed and to get the traction control serviced. I then had no power braking. This is the second time my truck has shut off at a light and restarted, but I don’t lose my brakes the first time.

    Source: NHTSA WEB SITE
  • 2026 GMC CANYON
    - clarskville , TN

    when apply GM update V661.10. tire pressure sensors are wipe out. resulting in 4 flat tire being indicated on the display. GM has no answers for this. this is a safety system that should not be disabled

    Source: NHTSA WEB SITE
  • 2021 GMC SIERRA 1500
    - Grand Rapids, MI

    P1098 code coolant control valve fail service bulletin N252508341 my vin not covered but same motor and same part !

    Source: NHTSA WEB SITE
  • 2018 GMC SIERRA 1500
    - Benton, LA

    I’ve owner the vehicle since new. My A/C condenser has failed 3 times, meaning I’m now about to be on my 4th. The welds are weak and it cracks in the same spot 95% of the time. It should last more than a 2 year average.

    Source: NHTSA WEB SITE
  • 2023 GMC ACADIA
    - Palm Harbor, FL

    The contact owns a 2023 GMC Acadia. The contact stated that while driving on the highway at an undisclosed speed, the vehicle stalled, and the engine lost automotive power. The vehicle was able to restart. During a second failure, the vehicle lost automotive power and stalled in the middle of the highway, and the vehicle was unable to restart. An alert message was sent by OnStar reporting a transmission or engine failure and advised that the vehicle needed immediate service. The vehicle was towed to the dealer where it was diagnosed with a fuel pump module failure. The manufacturer was not notified of the failure. The failure mileage was 24,749

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2024 GMC SIERRA 1500
    - Palm Beach Gardens, FL

    The front upper grille broke off and detached at highway speeds. The grille impacted the hood, causing a scratch and dent and became a road hazard and has the potential to cause an accident. This is the same failure reported in NHTSA Campaign Number: 25V-060 that only covers 2022 model years. Research online indicates failures in 2022, 2023 and 2024 vehicles. GMC to date will not warranty or recall this gross safety violation.

    Source: NHTSA WEB SITE