This is the worst truck on the market. I have a 2025 GMC Sierra 2500 HD at4x. All I've been having is problems with this truck I've only had it for 15 months and my AC drain tube is already plugged and it's going to cost me a lot of money for the dealership to unplug it because they put the plug right above the damn transmission
FA
Farshad
I am very disappointed with my…
I am very disappointed with my experience with Roy Foss Thornhill and the Tricare extended warranty.
I purchased my 2023 vehicle from Roy Foss Thornhill and also purchased an extended warranty that was presented as bumper-to-bumper coverage up to 200,000 km. I bought this warranty for peace of mind and protection against major repairs.
Unfortunately, my vehicle developed a serious engine problem. I provided all requested documents to Tricare and waited approximately five months for a decision. My claim was denied, and when I contacted the dealership for help, I was only told “sorry” without any real solution.
I trusted Roy Foss Thornhill and the warranty coverage I paid for. I feel very disappointed that after purchasing extra protection, I was left to deal with a major engine issue on my own.
I hope Roy Foss Thornhill and Tricare improve how they handle customers and warranty claims.”
JW
Joseph W.
I've been a Chevy guy my whole life but smh
I've been a Chevy guy my whole life. My dad pushed Chevy on us as kids and we grew up Die Hard Chevy guys in my family. It's very sad to see what has become of the car brand I grew up Loving.. we used to go on trips and as kids the game we would play would be count the Chevys and Fords on the freeway. My first car 98 GMC Jimmy second car 04 Chevy Cavalier third Car 2008 Silverado extended cab.. 2017 silverado 4 door and 2020 silverado 1500... and now 2004 silverado... because that's around when the quality slumped off... I've given them basically every car sale of mine besides one.... but I've had a lot of headaches along the way. There's much more to my story but I'll start with the 2017 silverado. At leased this truck with the intention of buying it after the lease was up if it was reliable.. truck had nothing but problems since the day I got it always made noises was always in the dealership. One time they had it for a well over a month trying to figure out what was wrong with it and they couldn't figure it out only to have GM tax remotely go into the wiring system from somewhere else and they still couldn't figure it out to find out it ended up being the key system. I turned that truck into a dealership Feldman Chevrolet in Livonia. I was told when I turned in the truck that I was over mileage for my lease . The girl Sydney told me not to worry that as long as I leased another vehicle through them they would make sure I didn't have to pay the over mileage especially with the accessories that I left on the truck when I turned it in. They were having a competition that Month for who could get the most sales.. General Motors issued me a small loyalty certificate to keep my business because of all of the problems with the truck so I decided to give them another shot and Lease another truck 2020 Silverado... with the hopes that it would be a reliable vehicle and I could purchase it after the lease. About 6 months into owning this vehicle I got a bill in the mail for $4,000 in over mileage for the last vehicle. That's what I found out the dealership basically told me everything I wanted to hear just to get me to lease from them again. I argued with GM Financial that the dealership told me they were going to take care of it and they never did ultimately having to settle with GM Financial and pay half of the mileage and they agreed to pay the other half. Later I found out that this went on my credit report as a charge off which is a very negative report on your record. I was never supposed to get this report from the start but I figured I would suck it up and just deal with it tried getting it changed but nobody would change it because General Motors would not accept my reasoning stating that I should have got it in writing. Basically saying they lied to your face and you lost out because of it. I paid my $2,000 for over mileage and they took care of their half and I thought it was over with. I turned in the truck on lease after the 3-year lease on time not over mileage... I wasn't going to lease another vehicle because at the time after covid trucks were outrageously expensive and the reliability was going downhill so I decided I would turn the lease in and buy something older that would be more reliable... this was where things got even crazier. About a year later my credit dropped substantially I checked into it to try to figure out what it was and found out that there was now a repossession on my record. I looked into it and started calling around and ultimately found out that someone at the dealership screwed up again and they sent the paperwork to GM Financial for the lease closing and GM Financial found an error in their paperwork and they sent the paperwork back it then sat in an irresponsible person's desk for over a year causing the truck to go on my record as a repo even tho I turned it in on time under miles. I addressed it with the credit bureaus they never got rid of the repossession but put a note on the file.. Now because of these two things on my record that were completely not my responsibility I'm finding it hard to finance things because people think I have charge-offs and repossessions on my record. I'm very upset with what General Motors has become and how the customer service handles these things they just leave you to deal with it on your own even though they know their dealership and their people screwed up. But that's not the end. A year or so ago my fiance sold her car and I decided to help her get into a new car since my old truck car was holding up well. We purchased her a 2021 GMC Acadia Denali with under 30k miles on it. Lifetime powertrain warranty through champion. Only to have General Motors replace a thermostat that got stuck(known issue) but they refused to fix the damage it caused. 2k i had to pay for a radiator that had a pressure pinhole. Fix the part but not the damage ot causes? Lost my faith and going to try toyota ..
BC
Brian C.
I’ve tried to contact them by phone and…
I’ve tried to contact them by phone and email to resolve an issue with the dealership and they have yet to respond. Have emailed them numerous times over the last 30 days and not a response.
AP
Anthony P.
Purchase 2023 GMC Denali love truck…
Purchase 2023 GMC Denali love truck with too many issues for me to be happy with my purchase. I made a lot of bad decisions in my life purchasing. This truck is certainly in the top 10 it went through so much oil that they actually had to rebuild the engine I was told that it still is going to go through oil about an quart every 2000 miles. They said it’s normal. I don’t see how that’s normal. Additionally, I have to pay double for my oil change because they changed the viscosity of the oil and I have to buy a premium oil on the market. Furthermore, they did a computer update which I never requested that was done automatically and now my run boards and Radio are messed up and they want to charge me $200 to fix it. All I have to say is that’s a fine How do you do?
FM
Fariha M.
Never buy a GMC
Never buy a GMC. It has been a huge waste of money for me. I bought my truck 4–5 years ago and I’m still making payments on it.
When I purchased it, I also bought an extended warranty that was supposed to cover the vehicle for 10 years and up to 160,000 km, including engine coverage. Now that the engine has failed, they are refusing to cover it and want me to pay for a full engine replacement myself.
I have completed all required maintenance and services on time, yet they still won’t honor the warranty. I am extremely disappointed with GMC and would not recommend their vehicles to anyone based on my experience.
BS
Brian S.
GMC is trash made to make you go to the…
GMC is trash made to make you go to the dealership for everything. The engineers should be dragged from their home and horse whipped. What idiots put a starter under an exhaust manifold and catalytic converter. Starters have to be changed as well as the alternator which you have to pull the entire fuse block out to change it. If you mess up well you are up shit creek. DO NOT EVER BUY A GMC
JB
Jad B.
New Terrain Elevation
I purchased a brand-new GMC Terrain in the UAE expecting reliability, safety, and peace of mind.
Instead, within 8 months of ownership, the vehicle spent approximately 4 months in workshops due to repeated concerns, including an ABS warning while driving with my family, steering and braking concerns, and a cruise control issue.
After multiple investigations, repairs, software updates, and workshop visits, I was ultimately informed that some of these behaviors are considered normal characteristics of the vehicle.
I continue to pay installments, insurance, registration, warranty, and service costs while having completely lost confidence in the vehicle.
I hope @General Motors and @GMC review this case objectively and help reach a fair resolution.