GMCReviews of gmc.com

I purchased a 2017 GMC Denali with 40,000 miles and had to replace the engine at 94,000 miles, due to lifter failure. My first GMC vehicle to give me any problems, I've owned several without any problems, I have continued to pour money into this vehicle dollars after dollar, the 6.2L engine continues to have issues.

Our experience with GM Customer Care and the EV Concierge team has been extremely disappointing. We opened a case after our vehicle experienced multiple failures that left it undriveable and required towing multiple times in 5 month span. Throughout the process, our concerns about reliability and safety were acknowledged, but meaningful solutions were not provided. The most frustrating aspect has been the constant shifting of responsibility between GM and the dealership. At various points we were told the dealership needed to make decisions, then told GM was reviewing the matter, only to be directed back to the dealership again. No one seemed willing to take clear ownership of resolving the issue. GM ultimately informed us that our situation did not qualify under Alabama Lemon Law, but beyond that offered no practical alternatives other than continuing to take the vehicle in for service and seeing whether a dealership might be willing to negotiate a buyback. For a vehicle that has experienced repeated failures and left us without confidence in its safety and reliability, that response was disappointing. When multiple owners report similar failures, customers expect transparency and accountability. Instead, we were left feeling that our concerns were being treated as isolated incidents while no one took ownership of finding a meaningful solution. Communication was equally frustrating. We received inconsistent information about actions that had supposedly been taken, promised follow-ups that never occurred, and several direct questions regarding escalation options and alternative resolutions went unanswered. We understand that not every customer concern results in a buyback or replacement. However, customers should expect accountability, transparency, and consistent communication. Instead, we were left feeling like responsibility was being passed back and forth while our safety concerns and loss of confidence in the vehicle were never meaningfully addressed. This experience has significantly affected our trust in GM and its commitment to standing behind its vehicles when serious reliability concerns arise.

1. The female mechanic was awesome! 2.The heat was blasting in the waiting room and it was unbearable! 3. The same channel and commercial played for 2 hours straight on the TV! 4. I waited over 2 hours to get an oil change because you sent all mechanics to lunch at the same time. One mechanic was left to do all the work while every chair in the waiting room was full! After 10 years of going to your dealership, I am considering taking my business elsewhere.

I bought a new 2021 Sierra GMC 2500 diesel. After about 3 years the drivers head light assembly gave out. I thought it was a bulb and thought i would buy a $60 bulb. aah no, try $2200 to get the part and replace it. Now the other side gave out. So another $2500. You read that right, thats Just short of $5000 for headlights in 5 years. $1000 per year for headlights.... seems excessive?? I tried customer help lines and no help.

I bought a 2026 GMC Denali on January 2026. I had a minor front end accident early January. My car has been at crash champions since early February !!!!! Crash champions has NOT been able to get a “rail” part to finish repairs. I was told by my insurance company GMC is noted as not getting repair parts. If I would have been aware this was the situation I would have NEVER have purchased a GMC. I would have saved money on rental cars and stress.