GMC Reviews 73

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.

I bought a 2024 GMC Canyon and the first few months loved it so much. Then I had issues with the the boss speakers and within a year the water started to leak from the roof . Took it to the delalship and they was giving me hard time to give me a lonar car . Then they finally gave me a lonar car and said the roof drain was clogged after six months the same issue happened and this time they said they could not duplicate the issue. Also the screen got blacked out after the water leak and the delarship could not duplicate the issue. Contacted customer service GMC with the issue and I asked for a replacement vehicle and they said its past an year since I bought the vehicle and they cant give me a new vehicle or refund my money . So after I got my GMC I traded for a Japanese suv which I love so much driving. If you want comfort and reliability dont buy Gmc products . You be having a bad experience and a nightmare. Stay away from that brand. My rating for GMC is zero. My truck has less than 12000 miles and I had the extended warranty which is waste of money . For oil changes I had to drive to the dealership which is an hour away . GMC is the worst with their products and worst with customer service. They just want to play the people and rob money .

Whatever you do DO NOT BUY A GMC UNDER ANY CIRCUMSTANCE. They come with faulty safety sensors which could kill someone. They allow managers of their dealerships to lie and rip off clients. They allow men like Kevin David to treat women poorly and threaten them if they leave an honest review. So steer clear of this company and all their dealerships

Bought a used 2017 GMC Sierra with only 102,000kms. Less than two years later and only 23,000kms, catastrophic failure. Requires a new engine. Absolute trash.

GMC Canada doesn’t care about business ethics and standards. They allow each dealership to make up dealer fees without any oversight. In other words, each dealership can establish their own practices without any accountability. Just be aware..

I leased a 2025 GMC Hummer in November of 2024. In early January I had to take vehicle to dealer with a battery issue. While the vehicle was in for repairs it was stolen from the GMC dealership. The vehicle was recovered however there was $22,000 worth of damage done to the vehicle. The dealer's insurance did cover the repairs however did not cover the contents inside the vehicle. Due to not having parts for repair the vehicle was at the dealership for more than 6 months. I called customer service numerous times to discuss options for them to take the vehicle back and I would purchase a new vehicle. I had only had the vehicle for less than 90 days and due to it being stolen while in their possession I thought it would be fair for them to take it back. I was not asking for anything free nor was I asking for anything that I did not think was fair. Customer service continuously gave me the run around and said the case was under review and they would call me back. They would never call. I would have to call them to repeatedly get the same answer. The case is still pending. After I received the vehicle back, they said the case is closed I have the vehicle now. I have only purchased GMC vehicles for my family, and I based on other family working for GMC. I however would not recommend, nor will I purchase another GMC based on this experience.

This company doesn't care about their customer. I will never buy another GM made vehicle as long as I live.

I purchased a 2025 Yukon Denali xl received 250 dollars toward merchandise.i wanted to purchase weather tech mats at dealership but they weren't in stock.i purchased my vehicle over a hour from my home .so do to free oil changes I would check on it when car was serviced.the voucher was not there.1 was told it had been added back but was not.after several attempts trying to reach customer service.i finally was able to talk with someone and now I was told that the voucher was expired. Very disappointed that gmc would not put weather tech mats in my vehicle for the price I paid for it.its the little things that matter to me no customer service

Aggressive and annoying advertising from the Martin reality group.

We have a 2023, 2500 diesel truck with 1500 miles on it- a work truck not used often. Yesterday while away from home we had a sudden shuddering of the brake pedal and truck.the dealership in Gainesville ga (Hardiman’s) states 2 to 2 1/2 wait time for working on the truck with no rental car until work begun. No offer of another work truck. They really didn’t care. So the warranty with rental truck is worthless. I’ve had the same situation with a Ford. I was taken right in and given a rental until the work was done. After paying 92,000 for a truck- or ANY amount- I expect service. Ford performed. GMC didn’t. We will never buy a gmc again.

Potential buyer beware! I purchased a new GMC Sierra 15OO in 2024 and was thrilled with the vehicle initially. Unfortunately, the excitement turned to disbelief quickly. In just over a year of ownership the truck needed two major repairs with only 26,000 miles on the truck. One repair being a failed fuel pump and the other being the valve body for the transmission. Although the repairs were done under warranty, this situation is unacceptable with a new vehicle. To make matters worse, GM is aware of the valve body issue in the 10 speed transmission (check the internet for the failures across the country) and has done noting to repair, reengineer or modify the failing part. GM is simply replacing it with the exact same part with no guarantee it will not fail in another 20,000 miles. Adding to the upset, the dealership had my truck for a month waiting on the backordered part and there were 7 other Sierra’s in front of mine waiting on the valve body. Sadly, I traded my truck in once repaired for another make simply to avoid any future headaches with the Sierra. So if you are shopping for a truck, reconsider before buying a new Sierra and do some deep research on the issues.

$80,000 for a truck and the junk batteries are bad less than 1yr in. GM Won’t replace due to mileage as if mileage makes a battery go bad. $562 for batteries less than 1yr old. You can’t even buy a battery with less than a 3 yr warranty most are 7 or 8 yrs warranty and when you do they don’t go off of mileage for the warranty. Warranty on a battery never goes off of mileage and always goes by months or years of warranty. Was told if I put 36,000 miles in two months nothing is covered. Meaning they wouldn’t even replace my batteries if they were only 2 months old because of mileage. Clearly by all these reviews I just read GM does not care about their customers. Apparently you can’t even have confidence in a GM battery to make it a year. What a joke. I will never put a Gm vehicle in my fleet again. I paid cash for my truck. You just lost a cash customer. Keep your garbage from here on out

I purchased a brand-new 2025 GMC Sierra at the beginning of September with zero miles on it. About two weeks after purchasing the truck, I noticed the tires had dry rot on the sides. I contacted the dealership immediately, and they dismissed the issue, saying there was “nothing there” and tried to wipe it off with a wet towel.

After getting nowhere, I contacted GMC directly to report the problem and ask for support, but they were unresponsive. I eventually contacted a Firestone dealership, and they confirmed the tires were in fact dry rotted and replaced them. However, I had to pay the installation fee of about $190 out of my own pocket.

I reached back out to GMC requesting reimbursement since the tires should never have been in this condition on a brand-new vehicle. GMC refused, stating the dealership told them it was “normal wear and tear” despite the vehicle only having zero miles at purchase and under 2,000 miles when the issue was reported. There's no way a new vehicle with only a few miles, and perfect tread should have dry rotted tires.

I am extremely disappointed with both GMC and the dealership in Bunkie, Louisiana. I expected better customer service and accountability, and this has left a very bad impression after purchasing a brand-new vehicle.
1 star was generous for both GMC & the Chevy dealership in Bunkie Louisiana.
My Resolution Specialist Echo was NOT HELPFUL AT ALL. This was a horrible experience with the GMC, the dealership, and the Resolution Specialist.

GMC Sierra is the worst truck in the world. Customer service is the worst I have ever witnessed. Some lady named Tykieia claims she is in charge when you ask to speak to someone else. So according to her there is no one else to talk to about my 3 month issue. Her answer is to put in the same failing part that went bad. This is not a fix at all. It is at best a band-aid DO NOT BUY GMC/GM/CADILLAC/BUICK OR ANYTHING THEY OWN. THEY HAVE PROVED THAT THEY DO NOT CARE ABOUT YOUR SAFETY AT ALL. WORST VEHICLES AND CUSTOMER SERVICE I HAVE EVER HAD TO DEAL WITH. IF YOU WANT TO DRIVE SAFELY BUY ANYTHING BUT A GM PRODUCT! NEVER WILL I OR ANY OF MY FAMILY PURCHASE A GM PRODUCT.

My 2023 GMC truck has been sitting in the shop for almost two months. First they said it was the turbo, then the radiator, then the air‑conditioning system, and now they claim the turbo shredded metal and sent it into the engine, so the entire engine must be replaced. Before this, the truck had already lost power; they changed the turbo, and just 10,000 miles later it broke down again, leaving my family and me stranded on the highway. It took them more than two weeks to give me a clear diagnosis. I pay over $1,000 per month for this truck and yet they’ve left me with a Malibu loaner I cannot work with. I’ve spent a lot of money on rental cars and lost income.

It gets worse: two months after buying it, on a trip from Florida to Virginia in 2023, the brakes failed completely; the shop never figured out why and didn’t fix it. While the truck was at the dealership, they even hit it and dented the fender. Most frustrating of all, GMC has not reached out to me—I always have to call and wait on hold to get updates, and no one has offered any solution or replacement vehicle. After years of buying GMC products, my trust is gone.

This is my personal experience—I’m not exaggerating. There are also public reports: in May 2025, General Motors recalled nearly 600,000 trucks and SUVs from model years 2021‑2024 because manufacturing defects in connecting rods or crankshafts can cause engines to fail
cbsnews.com
. Consumer protection lawyers note that 2020‑2024 3.0 Duramax diesel engines have suffered turbocharger failures, fuel‑pump defects and emissions issues
lemonlawfirm.com
. If you own a GMC truck from 2020‑2025 built in Mexico, please have it inspected so you don’t risk your family’s safety.

I never imagined I’d have to write a review like this, but after weeks of frustration and fear for my family’s safety, I feel it’s important to share my experience.

My 2023 GMC Acadia, only two years into its lease, has now been in service four times in one month for the same dangerous issue — a sudden and complete loss of power while driving, even at highway speeds. Each time, the vehicle abruptly decelerates without warning. Thankfully, there hasn’t been an accident yet, but I’ve had my 4-year-old son in the car when it’s happened, and the thought of what could occur if this happens again is terrifying.

The dealership has replaced the pedals, wiring, and management system — yet corporate instructed them to replace the pedals again, as if repeating the same failed fix would somehow change the outcome. Meanwhile, communication between the dealership and corporate has been inconsistent and painfully slow. I’ve spent over a week trying to get clear answers, only to be met with silence and excuses.

To make matters worse, I was told the dealership could no longer provide a loaner car, meaning my family and I are expected to drive an unsafe vehicle that has already failed multiple times. That is unacceptable.

This experience has completely shattered my confidence in GMC’s commitment to customer safety. A company of this size should never allow a known safety issue like this to drag on without resolution or urgency. I’m still waiting for accountability and a real solution — ideally, for GMC to stand behind its product and do the right thing.

Until then, I urge anyone considering a GMC vehicle to think carefully about what kind of support they’ll actually receive if something goes wrong.

I would leave zero stars if possible. I wish people would not purchase GM vehicles, they don’t care about their customers or their safety they did not want to help me at all just kept telling me the vehicle was operating as intended. I guess I didn’t get the stop option in my 2024 Terrain, and it was intended to drive me into a bush. I will never buy GM again.

Bought a 2017 Sierra Denali with 45,000 miles, at 94,000 the lifters went out. This was the first GMC vehicle I had issues with, there's no reason a $50,000 dollar vehicle should have any mechanical problems. The issues with the 6.2L recalls should have included earlier models.

I want to share my experience with roadside assistance through GM, 2023 Silverado zr2, 6.2L engine leaves my son stranded on hwy, told multiple times tow on the way, Just to be told 3 hours later no one is available. It did get towed 6h after the initial call forcing us to go pick them up an hour away, ruining all our evenings. On top of that because the dealer i purchased it at was a bit further then the closest dealer about 35km more they wanted to charge that at about $135. Money not the issue for me but the complete lack of customer service and car to waste all our time sure is. On top of this we put in a claim with customer service about 2 weeks ago with a logged customer reference number (CI.....) and told someone will call us back in a couple days. I guess a couple in GM world is different then mine, but completely rediculous how much the customer service is lacking. Even the supervisor after 3h could not solve anything. Time for GM to credit all customers for this service and just discount vehicles vs offering a service that clearly does not help you when you need it.

Bought a brand new 2024 3500 Denali, the truck has been breaking down every 3 months since. The most recent breakdowns were in Texas and Colorado. Truck broke down in the Dallas area, transmission completely failed, could not get to Vegas with my haul. Went to 5 dealerships in the area, some were closed on Saturday, some were open with one guy behind the service desk doing nothing. I was told that no technicians were on site and that they will re open only Tuesday. No dealership was able to provide me a courtesy vehicle as well. I still haven got any refund and compensation for that major break down (travel expenses, heavy truck rentals…) I picked up the truck in Texas, the very next day the transmission was acting out again but I was able to make it to Las Vegas. Stopped by my dealership regarding the issue, was told that the truck needed to be driven for a month so the transmission could synchronized with some modules and sensors. After a month I went to Colorado, transmission failed again and the top of it, there is a also a big leak underneath the engine, the master cylinder leaks as well…the truck is just falling apart. Took the truck to the nearest dealership in Denver, was told they will look at it in 7 days….then a few days later got a phone call from them to tell me that they won’t look at the truck for weekS… unbelievable!
I called the GMC customer service and got the truck towed to another dealership that was supposed to look at the truck on Monday…. then same BS, got a phone call about three weeks ago to letting me know that they will only look at the truck on the 8th….
Haven’t heard from the dealer since so I called today to check in on the repairs…. The Dealership can’t find my truck !!! They never had it ! The truck is nowhere to be found, called multiple dealerships, GMC towing assistance, GMC customer service… nobody has answers and they just don’t care.
I am still trying to get compensation for the breakdown in Texas, trying to get compensation for the breakdown in Colorado, trying to get my truck repurchased and now trying to locate my truck… it’s just been a nightmare.
My case manager Allie is incompetent, she sounds like she is 12 and just apologized on the phone in repeat mode, I think she is AI !
GMC is supposed to be the top of the top…. Well it’s not !
It’s time to lawyer up