Car with $13000 miles had sudden engine failure. Have heard numerous other new Yukons have had this issue.
2026 GMC Yukon engine problems
37 complaints (77% of all complaints for this car).
- owner complaints
- 37
- of this car's complaints
- 77%
- crashes
- 0
- recalls
- 0
Which part fails
Owners did not name a specific part.
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
GMC Yukon engine problems in other years
Specific symptoms reported on the 2026 GMC Yukon engine
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Engine failure 21Knocking 7Loss of power 7Check engine light 6Stalling 6
Related recalls
No recalls on record for this model year.
Related investigations
Loss of motive power due to engine failure post recall remedy
On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001. This investigation was opened to assess the remedy effectiveness of Recall 25V‑274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued Recall 25V‑274 to address concerns of engine failure in the L87 engines produced between March 1, 2021 and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issue. GMâs recall remedy for Recall 25V‑274 consisted of two different repairs, either an oil viscosity change or an engine replacement, based on the results of the remedy inspection procedure. ODI continues to receive reports of engine failures after the completion of the recall remedy. To date, ODI has received 499 complaints alleging post-remedy engine failure in vehicles subject to Recall 25V‑274, 473 of which involved an oil viscosity change and 26 a complete engine replacement. Additionally, ODI has received 191 reports of L87 engine failures in engines produced after the production period cited in Recall 25V‑274. GM reported receiving 6,953 complaints of post-remedy engine failure. ODI is opening this Engineering Analysisto continue investigating complaints of post-remedy engine failure. ODI is expanding the scope of this Investigation to include engines produced after the production period cited in the recall. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to
EA26005
What 2026 GMC Yukon owners say
Most recent owner complaints, unedited.
Has 3600 miles and engine suddenly lost power and had back knocking/squealing noise and check engine light started flashing.
Engine Failure. While driving on the highway at a speed of approximately 70 mph the engine made a noise and the vehicle lost power. The safety factor is that i was on the highway with trucks and busses in which i had to coast the vehicle to the shoulder of the road and call for police assistance. No warning lamps. Vehicle was towed and inspected by the dealer in which i was informed that the engine bearings had locked up. The vehicle needed a new engine.
My 2026 GMC Yukon Denali Ultimate has had the vadar chrome peel in the first 7000 miles. After that a wiring pinch made the 4 wheel drive unusable during the winter months that I needed it to get into my driveway During summer months the infotainment center completely failed to a black screen and since does not function having the dealership tell me that it will need to be replaced. The 6.2 motor started ticking at 25000 miles, I took it to the dealership yesterday 10/14, the dealership is keeping the vehicle for an estimated 6 weeks to tear the motor apart. The motor is making the noise where it is reported to shut down at high speeds had I not got it in when I did. The vehicle has had no warning to indicate problems.
Was operating Yukon on st route 5 doing 55mph when the Yukons engine blew up and the vehicle shut down on me in the middle of the road.
While traveling on a state route in Pennsylvania the engine unexpectedly locked up. This was confirmed by the dealer once it was towed to their lot and they were able to inspect it. To date, a replacement engine has not been able to be located yet, its been four weeks and no updates have been received.
This engine failed while I was driving. You need to speed up the process and make GM know that their 6.2 engines are failing still to this day . People can get in accidents due to this happening. GM needs to be held accountable for their mistakes. I was lucky my vehicle engine failed near my home and not on the interstate. Please get to the bottom of this . There is no reason that these engines are failing in 2026.
Engine failed . Stalled in the middle of the road . Engine ran bad . Shaking knocking and trebling. No engine lights on .
On 7/25/26 (a Saturday), we started to hear a noise in my vehicle and shortly thereafter, were sent a service alert through the GMC app and the check engine light came on. We immediately parked the vehicle and took it to the dealership when they opened on 7/27/2026 (Monday). Later that day, we were informed that my Yukon Denali, with 9,226 miles on it, has metal fragments in the oil caused by some sort of failure in the bottom half of the engine and the engine needs to be replaced. The engine was replaced and I picked up my car on 8/17/2026. The check engine light came on again on 8/20/2026 and after three trips to the dealership, my catalytic converter was replaced. Since purchasing my car on December 4, 2025, I have taken it back to the dealership 5 times for non-routine services (and once for a routine oil change). Since purchasing a BRAND NEW 2026 GMC Denali (a car that cost over $100,000) less than 10 months ago, I have been without my car for 33 days for manufacturing related issues that are all under warranty. I still don't think the engine issues are fixed (or I have another bad engine). My vehicle sounds metallic at start up (different than it sounded when I purchased the vehicle and different than other 2024-2026 GMC Yukons with the same engine) and idles rougher than it used to. I am nervous driving my car on road trips now, which is one of the primary reasons we purchased the vehicle. I did my research before purchasing this vehicle and based on information from GM, was under the impression that the engine issues plaguing the 2021-2025 engines had been resolved. This issue is still a MAJOR concern and needs to be investigated and remedied before something more catastrophic happens.
Engine stopped. Would not restart. I had it towed to dealership. They told me the engine is blown. There is only 7700 miles on the truck.
Questions about the 2026 GMC Yukon engine
Does the 2026 GMC Yukon have engine problems?
Owners have filed 37 complaints about the engine of the 2026 GMC Yukon, 77% of all its complaints, more than any other problem.
At what mileage do 2026 GMC Yukon engine problems start?
Not enough complaints include the mileage to tell.
Was there a recall on the 2026 GMC Yukon engine?
There is no recall for this problem on this model year.
What year does the GMC Yukon have bad engine?
The GMC Yukon model years with the most engine complaints are 2021 (221 complaints), 2023 (174 complaints) and 2022 (124 complaints).
Other 2026 GMC Yukon problems
Transmission 12Electrical 4Body 2Driver assistance 1Fuel system 1Locks 1Seats 1Visibility 1Wheels 1
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