GMCReviews of gmc.com

Certainly! Here's the revised review with the additional details: Disappointed with the GMC 2500HD Denali I purchased a new GMC 2500HD Denali in 2022, expecting a top-of-the-line vehicle given its premium price tag and reputation. Unfortunately, my experience has been far from satisfactory, and I feel compelled to share my disappointment. First and foremost, the reliability of this truck has been abysmal. Shortly after purchase, I experienced multiple breakdowns, leaving me stranded on the side of the road. The frustration of owning a brand-new vehicle that cannot be relied upon is indescribable. The first major issue was a transmission leak that took well over a month to repair. However, the repair was not done correctly, and they failed to refill the transmission fluid. Once again, I had to turn to a local shop to fix what should have been a straightforward repair. This is simply unacceptable for any vehicle, let alone one marketed as a robust and reliable truck. One of the most alarming issues has been the tailgate. It opens by itself while driving, which is not only incredibly unsafe but also makes it impossible to tow anything securely. Imagine driving down the road and suddenly seeing the tailgate open, potentially losing cargo or creating a dangerous situation for other drivers. When I took the vehicle in for a recall to fix this issue, the service department disabled the tailgate entirely and said they would contact me when the part was available. Months later, despite numerous attempts to follow up, I have yet to hear back from them. This lack of communication and inability to resolve such a critical issue is incredibly frustrating. Additionally, the truck has numerous electronic gremlins and the driver’s door leaks, adding to the litany of problems. The vehicle has been in the shop multiple times for these and other repairs, each time with long wait times and no clear resolution. I've had to resort to using an independent shop to fix issues that should have been handled by the dealership. Overall, the GMC 2500HD Denali has been a huge disappointment. The reliability, safety issues, and poor service have left me regretting my purchase. I expected much more from a premium vehicle and would advise others to think twice before investing in this truck.

Worst dealer in Oman and worst car. I had a GMC yukon when it completed 110000k car box get damaged. All services done at the dealer and when I went for checking no one know what to do and they brought me a bill of thousands to fix. Lost trust in both the dealer and the brand not recommended for any one.

Quality on a new 90k gmc Denali ultimate is poor. But try dealing with their customer service department! Try because once they give you a case number and rep, you can call a hundred times and no one will answer the phone. Ask for their supervisor and he is not available, because of privacy you can't know who he is. Company line, I understand your frustration. But no results to fulfill your warranty. Don't buy GMC!

I have my truck in service for two months (60 days)- In need of a leaky EGR, and nobody has information (I called multiple times the service where the vehicle sits and the GMCCanada line) about when the parts will be available if ever. Besides the fact that I was told multiple times that the request has been escalated to the highest level of priority the GMC Canada phone number apparently was created only to protect and cushion the higher tiers of people that can really look into this problem. The phone operators won't put their managers on the phone, "they are terribly sorry though"-(and I don't know why as there is no communication between hierarchies) so you can't actually escalate the issue. I made one big stupid mistake to buy a GMC in August of last year (so the vehicle was down two months out of nine) and I still pay for it. I will just try to post it here and wait. Oh how I miss my 360k, 2011 Toyota Tacoma that ran like a dream. Well, I wanted a piece of american garbage...

GMC After spending close to $90k for a new GMC Sierra 2500HD Denali, I later scheduled my first maintenance appointment as it was included with the purchase. Not knowing that topping off the DEF was included, I topped it off myself before taking it in. I was told they would top it off on the next visit. Upon returning for my next maintenance service, the Service manager, Shawn Branham, chose NOT to top it off unless I paid for it. This was in addition to denying my use of a service coupon online. In fairness the fine print did exclude diesels. I did leave the truck for them to take care of the GM recall items and it was almost 6 hours of waiting. Completely unacceptable. I planned to use them for the life of the truck but will not return and will not recommend to anyone. A big price to pay for $20 worth of DEF that was owed to me. The very positive part of my visit: The Customer interface person (named Rishad) was outstanding in everything he did to accommodate all my needs while waiting including arranging a ride to another appointment and back, but unfortunately the actual service decisions are out of his control.

I have a 2020 silverado with a duramax diesel engine my dream truck they have no part to control coolant temp so it sits until GM get off there butts and sends out parts without that coolant valve it cant keep temp control they dont care about no one they get 0 stars from me ive been all over looking for this part no one has it thats bad i may be forced to get a different one from a different place like toyota or nissan at least u can get parts for those they lost another customer i will not buy another GMC product now u cant get parts how would u like to do without a vehicle

I reached out to GMC in January 2024 about my terrible ownership experience as the transmission and engined failed on me within 3 and a half months of purchasing a used 2018 GMC truck from the GMC dealership on Waverly in Winnipeg (which was a terrible experience of itself). They promptly responded to my feedback, but have now been "investigating my case" for over a month and have let me know about 13 times saying they're still investigating. I lost patience and needed to move on, so I sold the vehicle back to the dealership last week. GMC Canada was of no help to me and I'll never purchase a GMC vehicle again.

Bad experience with GMC Customer Service!! I’m trying to get reimbursed for repairs I completed on a known issue by GMC and they are refusing to cover my repaired expenses. Anyone having this same issue? I’m currently trying to escalate this issue Issue acknowledged by GMC notice sent to me: 2016 model year GMC Sierra vehicles, equipped with a diesel engine, may have a condition which causes an offset in the temperature sensor in the diesel-emission-reduction fluid (DEF) tank reservoir or causes the DEF heater performance to degrade. If this condition occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate, the "Service Exhaust Fluid System" or "Service Emission System" message will be displayed, and a diagnostic trouble code related to the condition will be set. I definitely meet their repair requirements: If this condition occurs on your 2016 GMC Sierra within 10 years of the date your vehicle was originally placed in service or 120,000 miles (193,000 km), whichever occurs first, the condition will be repaired for you at no charge. I had it repaired elsewhere prior to knowing GMC would repair this issue for free. Paid $986.01. GMC REFUSES to reimburse me even-though their letter states: If you have already paid for repairs for the condition described in this letter, please complete the enclosed reimbursement form and present it to your dealer with all required documents. Working with your dealer will expedite your request, however, if this is not convenient, you may mail the completed reimbursement form and all required documents to Reimbursement Department, PO Box 33170, Detroit, MI 48232-5170.