My 2025 GMC Yukon AT4 Ultimate experienced reduced acceleration, and I immediately took it to the dealer. The dealer concluded it was a thrust bearing failure, and GM has authorized a complete engine replacement. I wanted to report this issue, as I believe it represents a potential safety concern. I would like to clarify whether GM has identified the root cause of this problem and redesigned the r…
2025 GMC Yukon engine problems
moderate 20 complaints filed with NHTSA · avg repair $3,100
Complaints
20
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 7 most recent
On November 5, 2025, this 2025 diesel GMC Yukon Denali brand new vehicle went into "limp mode" 75 days after purchase with 3,957 miles on the odometer. Vehicle began to decelerate on a busy road. Warning lights went on to indicate that accelerating was no longer possible. Other fast-moving vehicles on the road came very near to the Yukon and quickly passed it/weaved around it, jeopardizing the liv…
On October 21, 2025, with only 4,197 miles on my Yukon, the vehicle suddenly died while in drive in a parking lot. The vehicle would not restart or shift into neutral. I contacted OnStar, who arranged for the vehicle to be towed to the nearest GMC dealership. Since that date, the vehicle has remained at the dealership and has been diagnosed as needing a complete engine replacement due to metal sh…
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The 6.2 engine in our 2025 Yukon Denali with 3,200 miles just locked up. It needs to be replaced. They said they fixed the problem and it was only affecting 2021 to 2024, but it is carrying over into 2025. They should just buy this vehicle back.
I just bought this 2025 GMC Yukon a little over a month ago, and the 6.2 engine has seized up. This vehicle started making grinding noises and shut down going 60 miles an hour. I traded in my previous Yukon and the dealer has sold it, so now I have nothing to drive. These engines are dangerous, and GM knows this and they don't seem to be doing anything about it
While driving on the highway, my SUV lost speed and went into what I believe was limp mode and the check engine light came on. I was unable to accelerate quickly which was very dangerous on the highway as I was only able to very slowly go about 45 MPH on a 65 MPH highway. After the dealer inspected it, I was told I needed a new engine, oil cooler, and turbo. They said it had metal in the oil. My S…
Common questions
How serious is the engine problem on the 2025 GMC Yukon?
It's a documented issue but not catastrophic. 20 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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