2015 GMC Yukon XL: engine failure

Filed Jan 19, 2026 · Engine · TX

While driving back home from my trip the truck all a sudden made a squealing noise and the engine just stopped. I was on the high way . I was able to coast the vehicle off onto the exit ramp. The vehicle was towed home. The following day it was towed to the repair shop. The shop has confirmed engine failure. Will need to replace the engine . Still waiting for warranty approval.

Filed May 14, 2025 · Engine · 127,000 miles · LA

The contact owns a 2015 GMC Yukon XL. While the contact's wife was driving 50 MPH, the engine seized. There were no warning lights illuminated. The contact stated that the vehicle failed to restart. The vehicle was towed to the dealer where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. In addition, the contact stated that the vehicle failed to start several times; however, the battery and the alternator were replaced. The contact stated that the vehicle failed to start and was towed to the destination. The manufacturer was not made aware of the failure. The failure mileage was approximately 127,000.

Filed Apr 30, 2025 · Engine · ME

in september the check engine light came on and the care began making aloud knocking noise. When we brought it to our mechanic he let us know that the engine had bad connection rods and I would need a new engine. The mechanic stated he has seen this multiple times on GM V8 Motors

Filed Apr 27, 2025 · Engine · GA

While driving, the check engine light started to blink and there was a steady knocking coming from the engine. This is the same issues that GMC is currently recalling newer model vehicles for. Safety was at risk because the engine failure happened while driving.

Filed Apr 16, 2025 · Engine · 127,000 miles · LA

The contact owns a 2015 GMC Yukon XL. The contact stated that while his wife was driving approximately 35 MPH, there was an abnormal sound coming from the engine compartment before the vehicle stalled. The driver was able to steer the vehicle into a parking lot. The contact stated that his wife attempted to restart the vehicle; however, the vehicle failed to restart. The contact stated that his wife observed that the check engine warning light illuminated while attempting to restart the vehicle. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired. The contact stated that prior to the engine failure, the vehicle had been towed to the same dealer for a failure to start. The contact stated that the starter motor and a 12-Volt battery were replaced. The vehicle was repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 127,000.

Filed Feb 23, 2025 · Engine · NY

While traveling at highway speed, without warning, check engine light started flashing. Pulled off the highway at the next exit and vehicle died in the middle of the road. Towed vehicle to mechanic who inspected vehicle and found no compression (zero psi) on cylinder 1 indicating a major engine failure, rendering engine unrepairable and the vehicle worthless. Either cam, lifter, piston failure in cylinder 1 causing massive engine failure and making the engine unrepairable due to metal shavings in the engine. This is the L87 engine, 6.2L V8 that has been plagued by problems by millions of GM owners. This car had been meticulously serviced and maintained with regularly scheduled full synthetic oil changes. The car have no indication of engine problems beforehand until the engine blew up at highway speeds.

Filed Jul 22, 2020 · Engine · 37,500 miles · PA · fire

Our 2015 yukon xl denali caught fire in the engine compartment while waiting at stop light on sat, with my wife and children inside. It was a hot day, over 95 degrees, and we were turning left across traffic when we realized the smell and smoke was coming from our vehicle. Smoke whiffed from under the hood and noxious fumes filled the passenger compartment, scaring me and my family. We finished the turn and immediately pulled over, shutoff the truck, and all escaped fearing it would burst into flames. Whatever was burning appeared to stop once the ignition was off. I opened the driver door, popped and raised the hood to look for the problem. I could see that a belt, behind the serpentine belt, had snapped, and there was charred debris on the exposed mechanical pulley for the AC compressor. After further inspection, I restarted the truck with the AC off, and monitored for smoke. The truck seemed ok to drive home , so we did without AC on a 95 degree day. On monday we drove the truck to a trusted mechanic for inspection. They diagnosed the compressor seized and estimated repairs were $1,240. The truck is garaged kept, and gently used with only 37,500 miles. We purchased the gmc certified truck in july 2018 from a dealer. I created an account on gmc.com & looked through warranty coverage. A special coverage had been extended for AC defects, but it lapsed in march, 2020. Looking further; many thousands of gm owners had same problem from same defective AC condenser combi-cooler. I called gm to complain they never told us of about a defective AC system. They said only a gm dealer could diagnose the problem, because they are 'experts'. That same 'expert' dealer had serviced our yukon 4 times over the past 2 years and never once shared the information about the defective AC system. Gm & dealer colluded to allow warranty to expire.

Filed Nov 26, 2018 · Brakes · 105,000 miles · CA

Tl* the contact owns a 2015 gmc yukon xl. While driving 5 MPH and low speeds, the brakes seized. When driving at higher speeds, the brakes performed properly. The contact would have to place the vehicle in neutral and rev the engine for the brakes to work. There were no warning indicators illuminated. The vehicle was taken to seilveira buick gmc (985 healdsburg ave, healdsburg, ca 95448, (866) 572-7256) where it was diagnosed that a new vacuum pump needed to be installed. The vehicle was repaired. The manufacturer was made aware of the failure and did not assist. The failure mileage was 105,000.