*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Engine
The contact owns a 2017 GMC Yukon XL. The contact stated that on several occasions while driving at various speeds, there was a loud ticking and tapping sound coming from the engine compartment. The vehicle was taken to two independent mechanics, where it was diagnosed and determined that there was a lifter failure caused by the AFM system and an engine misfire, and that the lifters, camshaft, and timing chain needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 137,000.
Aug 30, 2026 · 137,000 milesPower train
Vehicle is shuddering during acceleration and while changing gear during driving affected by either the transmission or power train
Oct 18, 2025Service brakes, hydraulicCrash
The contact owns a 2017 GMC Yukon XL. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic); however, the failure occurred after the recall repair. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed and went to the floorboard. No warning light was illuminated. The vehicle continued to move forward and rear-ended the vehicle ahead. There was no air bag deployed. There were no injuries sustained. A Police report was not filed. The contact stated that there was damage to the front bumper. The vehicle was driven away from the crash scene. The vehicle was taken back to the dealer,…
Aug 24, 2026 · 170,000 milesPower train
Transmission shudders and shifts very hard in lower gears. Going from drive to reverse the transmission shifts hard.
Aug 1, 2026Electrical system
The daylight running light in the rear do not work, which is needed for night time driving. At night when parked or driving the rear is completely dark, except the license plate lights. When I press the brakes they turn on, the signal lights work even the reverse lights. I've switched them to manual mode still no luck. I've checked some fuses, they all check out, nothing blowen. From some research it's all conctrolled by the body control module. There are alot of cars with this same issue there should be a recall for gm to fix properly, dues to safety of the driver and public. We just bought this vehicle which, and didnt test drive at night. 3 days later we discovered it. We even bought new…
Jun 30, 2026Seats
There has been 3 different incidents. First incident I was going 45mph merging into 5 lanes of traffic when the back of my driver seat randomly layed down flat and stayed there. I had to get off an exit, get out pull up on front of seat and then it layed back up. 2nd incident I was going about 40mph it folded completely forward and pinned me against the steeling wheel. I had to stop immediately in the middle of the road put my 4 ways on and wiggle and slide out of the car started pulling up on front of seat and was finally able to put it back in place. The 3rd time I was going 20 mph it folded completely forward and pinned against. Had to stop in the middle Of the road again pull up on…
Jun 22, 2026Fuel/propulsion system
Engine stalling, a rough-running engine, reduced power mode (sluggish acceleration), a "Check Engine" light, or the vehicle failing to start. It started puttering really bad and died in the middle of the intersection. Check engine light came on. I got it to start, was really hard start and puttered bad then it died again and then I got it to start again, was a really hard start and puttered and died again. I was able to start it again get in the driveway but couldnât go very fast. Check engine codes present are P2635 and P018B
Mar 21, 2026Power train
Transmission problems, loss of power. Put a reader on car and said it was a selinoid. Replaced that and now it has happened again
Sep 1, 2025
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.