2018 GMC Yukon engine problems

Related recalls

No recalls on file.

What owners say

1. Filed May 13, 2026OHEngine

   I started my vehicle and as I accelerated I started to hear a knocking noise. The vehicle and engine have been inspected by the dealership. The problem has also been confirmed by the dealership.There were no warning lights or messages before the knocking noise started.

   NHTSA complaint #11737607 · source
2. Filed Apr 13, 2026AREngineTransmission & Drivetrain

   The 2018 Yukon has been at the dealership several timeswaiting for a valve body for the transmission. There are valve body recalls for other year GM vehicles with the same transmission, but not for the 2018 model even though it appears to be the same part number. I don’t understand how this 2018 model apart of the recalls when it’s got the same issues as the newer ones. This is the second Yukon I’ve bought in the last seven years and the other one had the exact same issue.

   NHTSA complaint #11730984 · source
3. Filed Apr 3, 2026128,640 miVAEngine

   The contact owns a 2018 GMC Yukon. The contact stated that the vehicle was taken to a local dealer for service, and the contact was informed that the radiator was leaking and needed to be replaced. The contact stated that there were no signs of a leak prior to taking the vehicle for service. The contact was advised by the dealer that it was a common failure for the year and model vehicle. The manufacturer was contacted and offered a buyback. The vehicle was not repaired. The…

   NHTSA complaint #11729075 · source
4. Filed Dec 23, 2025104,000 miARTowedEngineTransmission & Drivetrain

   The contact owns a 2018 GMC Yukon. The contact stated after the vehicle was serviced, while driving 30 MPH and depressing accelerator pedal, the vehicle failed to respond. The contact stated that the vehicle hesitated, and the contact shifted to a lower gear to drive to the residence safely. A dealer was contacted. The vehicle was towed to the dealer where it was diagnosed and determined that the transmission needed to be replaced, and that the engine block was damaged. The…

   NHTSA complaint #11706830 · source
5. Filed Nov 21, 2025NEEngineSuspension

   Air conditioner condenser faulty and had to repaired. Premium Ride Shocks faulty and had to be repaired. Lifters and bent pushrod faulty and had to be repaired. Vehicle currently has approximately 70,000 miles. These are all known issues by GM and very expensive to fix and no recalls.

   NHTSA complaint #11700880 · source
6. Filed Oct 28, 2025MIEngine

   What component or system failed or malfunctioned, and is it available for inspection upon request? Engine failure due to lifter failure and bent push rod and needed cam replaced. It is available for inspection. How was your safety or the safety of others put at risk? Could have been catastrophic if I didn't bring in for repair if the engine failed completely while driving. Has the problem been reproduced or confirmed by a dealer or independent service center? YES Has the…

   NHTSA complaint #11695994 · source
7. Filed Oct 5, 2025TNEngine

   I was driving on I75 North, just North of Chattanooga. I was in the Center Lane. I lost all power to the vehicle. The engine stopped. I had no power steering, no power brakes, and was in heavy traffic. I managed to shift lanes and get it to the shoulder of the road. The vehicle was towed in. Diaganostics were completed by a certified mechanic. The engine had seized. GM has several recalls on this issue. 2018 is not included. However, this is the exact same issue that is…

   NHTSA complaint #11691429 · source
8. Filed Sep 22, 2025OKEngine

   My 2018 GMC Yukon blew an engine with only 81,000 miles. Had four shops including (2 GM dealerships) look at the vehicle, pictures, and findings and concluded the engine had blown. The vehicle had began running very rough while driving down the road at 45mph. The CEL showed a misfire in cylinder one. The spark plug was pulled and soaked in oil. A borescope was put down the hole and found oil pooled on top of the piston. The engine has blow by the piston rings and the…

   NHTSA complaint #11688970 · source
9. Filed Sep 5, 2025OHEngine

   driving the vehicle on a regular city street when the flashing engine light came on out of nowhere. immediately pulled off and had the vehicle towed to my dealership. result of the inspection, i have to replace my engine. as soon as i started researching the issue it is clear that this truck should be part of the GM recall. it is a known issue that GM slow played for years, but as of now this vehicle is not part of the recall. it is the same engine and failure mode as the…

   NHTSA complaint #11685295 · source
10. Filed Aug 18, 2025CTEngine

    Vehicle (engine) shut off while driving on highway. Would not restart. Had vehicle towed from highway to repair shop. No check engine light ever came on. The engine was replaced and old one had to be returned in order to avoid paying a $5,000 core charge. I found out after replacing the engine that GM issued a recall but I read it starts with 2019 models and only reimbursement for original owners. I purchased this vehicle from a GM dealership in CT (Scranton of Vernon) in…

    NHTSA complaint #11681398 · source
11. Filed Jul 30, 2025CABrakesEngineFuel, Hybrid & EV Propulsion

    Engine work valve intake lifter and camshaft repairs / oil sensor has been going haywire / rear struts keep popping off and after struts repaired bought the truck 05/2024 and had to take to repair 12/2024 and once month ever since.

    NHTSA complaint #11677371 · source
12. Filed Jul 10, 2025ILEngine

    Has lifter chattering / camshaft issues as a result of manufacture defect that so many people are complaining about from the research I have done

    NHTSA complaint #11672396 · 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