2021 GMC Yukon engine problems

Related recalls

• Recall 25V274000Apr 24, 2025597,571 vehicles
  ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

  General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

  Risk: Engine failure increases the risk of a crash.

  Remedy: Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification letters were mailed June 18, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252494000.

What owners say

1. Filed Oct 6, 2026TXEngine

   While driving on the highway with my child in the car, the car suddenly began shaking and warning lights to check the power train came on the dash. There was also a loss of power in acceleration. Other error codes (303) also appeared with the check engine light also coming in. Upon checking the code later once home, it indicated there was an issue with the lifters. The car was then towed to the dealership where it was confirmed there are issues with both the lifters and the…

   NHTSA complaint #11769396 · source
2. Filed Oct 1, 2026SCEngine

   I purchased this vehicle new in 2021. In XXX, the vehicle started shaking while driving then suddenly cut off. Mileage was a little over 12K. Diagnosis was an engine lifter issue. The dealership replaced all 16 engine lifters. The vehicle now has a little over 52K miles on it. The engine lifters have failed again. This is a known safety issue for this (and other GM vehicles) manufactured in the same timeframe. However, GM has not issued a recall. I am now looking at having…

   NHTSA complaint #11768352 · source
3. Filed Sep 29, 202672,850 miMOTowedEngine

   The contact owns a 2021 GMC Yukon. The contact's wife stated that while driving at an undisclosed speed, the vehicle lost motive power and was unable to restart. The vehicle was towed to a dealer, where it was determined that a fuse had failed and needed to be replaced. The vehicle was repaired. The contact's wife stated that while driving 55 MPH after the repair, the vehicle unexpectedly shifted into neutral, stalled, and lost motive power. The vehicle was unable to…

   NHTSA complaint #11767854 · source
4. Filed Sep 26, 2026TXEngineOther / Unknown

   General Motors, Orr GMC and Sewell GMC are purposely concealing issues and service records related to my vehicle. I believe it is intentional fraud on their part to mislead the public, legal/judicial officials and oversote authorities about the severity the L87 engine failures and excessive oil consumption. They have lied about the status of the vehicle during oil consumption tests, refused to document test results and even rescinded their offer to replace the engine when I…

   NHTSA complaint #11767182 · source
5. Filed Sep 21, 2026TNEngine

   I am filing this complaint regarding severe, excessive oil consumption in my 2021 GMC Yukon equipped with the 6.2L V8 engine (VIN: [XXX]). The vehicle is consuming oil at an accelerated and hazardous rate. Specifically, the engine oil level drops completely below the viewable crosshatches on the oil dipstick well before the vehicle’s automated Oil Life Monitoring system reaches 50%. This level of rapid oil depletion creates a significant safety risk, as it puts the vehicle…

   NHTSA complaint #11765877 · source
6. Filed Sep 15, 202695,000 miMOTowedEngine

   The contact owns a 2021 GMC Yukon. The contact stated that while his wife was driving 65 MPH on the highway at higher speeds, the vehicle shuddered abnormally. The check engine, ECU, and traction control warning lights illuminated, and the message "Shut off Vehicle as soon as Possible" was displayed. The contact's wife pulled over to the shoulder of the road, and the vehicle was towed to an independent mechanic for diagnosis. The mechanic retrieved dDTCs: P0307 and P050D,…

   NHTSA complaint #11764399 · source
7. Filed Sep 11, 2026TXDriver Assistance & Safety TechEngine

   Crankshaft / Camshaft caused catastrophic engine failure while on a family road trip leaving family and kids stranded on the side of the highway for hours. 2021 GMCs are notoriously having this issue but they refused to include our VIN in the recall. It cost us almost $13,000 to replace with a brand new engine and only 4 days after picking up from dealership the vehicle stopped working and shut off at a light in the middle of the road. GMC has been no help and won’t cover…

   NHTSA complaint #11763546 · source
8. Filed Sep 8, 2026MIEngine

   My 2021 Yukon Denali received the Recall 25V-274 oil fix and I am now experiencing an active light engine knock. My gas mileage has reduced significantly and I am having to add oil in between regular oil changes. Not only does it burn through oil and fuel faster but I now get charged an extra fee for "Premium oil". My oil changes cost me roughly $40 dollars more now. ($140 instead of $100) I don't feel as if this fix with the oil change has improved anything and that the…

   NHTSA complaint #11762672 · source
9. Filed Sep 3, 2026MSEngine

   My 2021 GMC Yukon began experiencing severe engine problems, including shaking/rough running, a noticeable ticking/knocking noise from the engine, and a flashing check-engine light. The vehicle also displayed Service ESC and traction control warnings and exhibited symptoms of an engine misfire. I took the vehicle to a dealership for evaluation. I was advised that the problem may involve failed lifters and that the vehicle could be out of service for several weeks for…

   NHTSA complaint #11761792 · source
10. Filed Sep 2, 2026FLEngine

    Lifters failed under 80k miles. Had lifters replaced with gm parts and engine is continuing to eat up oil and lifters are failing again in less than 3 months after the repair. Vehicle was out of warranty and all costs were out of pocket including a rental for over a month bc parts were on backorder

    NHTSA complaint #11761777 · source
11. Filed Sep 2, 2026PAEngine

    While driving my 2021 GMC Yukon Denali with the 6.2L L87 V8 on a high-speed highway near Somers Point, New Jersey, the vehicle suddenly began bucking and the accelerator stopped responding normally. The vehicle rapidly lost propulsion while I was surrounded by highway traffic and approaching a bridge. I was fortunate to get the vehicle onto the shoulder before reaching the bridge. I was then stranded on the shoulder of a high-speed highway, where the disabled vehicle created…

    NHTSA complaint #11761614 · source
12. Filed Sep 1, 2026OKEngine

    this year model was recalled do to engine problems. Ours wasn't one that was on the recall list. We ended up having to have the motor rebuilt and cost us around $7000. We have seen where these models are still having problems, so i wanted to report our problem and the money spent to get it fixed.

    NHTSA complaint #11761391 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology