GMC Sierra Reviews

I’m leaving a 1 star review because I couldn’t no reviews. I’ve been a GM customer for 20+ years and never had a problem with the vehicles until this buy. I bought a brand new 2021 Sierra which the paint started to peel right after the 36,000 miles. The truck has been garage kept with presently 39,000 miles. I took it to the dealership and they said nothing could be done due to being past the manufacturer warranty. I told them it’s been garage kept to see the miles I only drive it on the weekends it’s a manufacturers defect. They said sorry it’s been past the warranty. Nevertheless I contacted GM and told them the situation and they told me they would look into it. They did they told me to take it to the body shop for a repair estimate. They quoted 3,600.

I have tried to contact GMC to help settle a problem with the dealership over repairs over the last 30 days. You have to respond. They seem to hide from all contact.

Two weeks ago marks the Third engine failure in 2021 GMC Sierras we own. They are well maintained. We have lost two engines 5.3 liter. One with 40,000 miles, one with 138,000 +/- a few hundred. Now a 6.2 liter, 2019, with 128,000 +/- a few hundred miles. The 40,000 mile was in warranty. The 138,000 mile engine was provided a $3500.00 Certificate for discount on a new truck. The 2019 model, nothing. The point is GM could assist repairs but it must be in their garage where you get ROBBED with cost of a rebuild! I would NOT BUY a GM Vehicle again! They know there is a problem with engine failures so SCREW THE CUSTOMER!

There’s nothing ultimate about this truck except it’s a Duramax. $105,000 will get you a truck that is a downgrade from previous 2023 and older models. The 2023 and newer with the new infotainment system have the worst sounding factory audio I’ve ever heard in my life. It is absolutely horrendous.. It’s embarrassing that GMC would go this far backwards when compared to older models.

I purchased a 5.3 2010 GMC Sierra 1500 and after 125k miles, the engine blew. Now I have a 2019 5.3 Sierra X31 with 79K miles and the engine blew up and the dealership, plus other customers, have blasted GMC on their response, knowing full well the lifters in these trucks are crappy. 10K for a new engine and no guarantee it will last. You guys should fix this problem because you know full well it’s a defective engine. Never again will I buy another GMC!

Been waiting 3 weeks for my now second DEF tank on my 2024 Sierra at4 with 3.0 diesel. No word when one will be shipped. I bought a new vehicle so that I could have something reliable. The only answer that I get is that there is a part shortage. There are 7 vehicles waiting at my dealership for the same issue.

The old entertainment center acted this way for a year, before it froze and was replaced. Dealer told me that the over-the-air updates are only for the radio. The Nav and computer updates require onsite updates at the dealer, although none have fixed the intermittent freezes or failure of the Nav cues to show on the HUD.

I traded in my 2018 GMC Sierra, for a 2026 Sierra. The vehicle had less 94 miles on it at the time of purchase, not even two weeks later the backup camera failed. I was told the part needed to be replaced, it was in stock and they were able to get it (this happened on a Monday). The problem being I live remotely on an island with no GM dealership. I had a ferry ticket to go back home, Friday the same week my camera failed but was told that the part would arrive in two days. The part did not arrive until Friday, I missed my ferry. I have to spend money on a hotel and food for a week to wait for the next ferry. I will be missing work for the week and will lose out on pay. Another expense, pay for gas for the week unless I park and just walk everywhere for a week.

I bought a used beautiful 2019 GMC Sierra 1500 Elevation with 21K miles about 2 years ago. Unfortunately, I didn't notice the transmission kick in engine cold temperature, look it up and yes, they have a sensor temperature problem. Now I have lifters and camshaft at 58K miles. A problem that AFM system causes, just for GM parts $2,500 plus labor, I don't think I will ever own a GMC again, already have too many major problems.

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…).