2023 GMC Yukon XL transmission problems

Filed Nov 7, 2026 · Transmission · NY

My vehicle 2023 gmc yukon xl with 5.3 , I have about 145000 miles on my suv. This vehicle have known defect in valve body and transmission, its same as 2021-2022 models ( GM Special Coverage N242454441 ) gm has acknowledged and doing special coverage for those years , last night I was on highway speed and got harsh shifts and I recieved errors on my screen something saying limp mode , and check engine light , I had to immediately pull over and I scan the code ( I had obd scanner in car ) I got 2 coded p0700 and p0747 , both for transmission and upon checking this is known issue for valve body and transmission, gm dealer has refused a special coverage on my vehicle and said this isn't covered repair , all of the sudden going in limp mode on highway put me and others life in danger I could have been rear ended while moving to pull over.

Filed Oct 8, 2026 · Engine, Transmission · NJ

The car suddenly started bucking while driving on I95 at about 75 miles per hour. We were able to coast off highway and when finally towed to a dealership we were told we needed a new engine. The vehicle at the time had about 57,300 miles. It was very scary to be on a dangerous highway with tractor trailers speeding past and have NO control over the vehicle.

Filed Sep 16, 2026 · Transmission · KY

As I was driving on the highway the engine stopped without warning. I was able to safely maneuver the vehicle to the shoulder, but it took me a minute to figure out what happened. There were no engine warning lights in advance of the failure. It was concerning because I was traveling home alone with my 2 dogs and it was very hot. The vehicle had a prior Safety Recall performed regarding this issue, but the engine failed anyway. GM did replace the engine under warranty, but I am hearing that replacement engines are also failing, and I am worried this engine will fail outside the current warranty.

Filed Sep 4, 2026 · Fuel system, Transmission · WV

Vehicle passed previous recall for engine defect related to complete engine failure, GM switched oil viscosity. Recall performed 10-16-25. Complete engine failure diagnosed at dealer 9-4-26, related to exact malfunction that sparked recall.

Filed Aug 30, 2026 · Engine, Transmission · NY

PICO scope test #FDYZ295894391 on engine for recall #N252494003 engine , passed test. Drain oil filled with 0-40 replaced oil cap. Date 09/19/2025, mileage in 20142/mileage out 20142. Vehicle runs rough. Not stable at times. Vibration noise coming from the motor at times.

Filed Aug 24, 2026 · Engine, Transmission · TX

2023 Yukon XL AT4 with 67k miles suddenly had lifters fail. GM service said cam scored & metal debris all the way through to the pan, requiring total engine replacement. Vehicle was very well maintained with premium fluids and parts.

Filed Aug 23, 2026 · Engine, Suspension · IN

Vehicle shifted into neutral while driving down the highway, extremely dangerous. Would not shift into gear and could not accelerate. Was able to pull over and the vehicle would not restart. Had to have the vehicle towed to a dealership. Dealership found a blown fuse, problem happened again twice and the dealer could not find the problem. This was July 28th, 2026. On August 20th, while in cruise control, slight ringing noise began, then a loud thump, then a loss of oil pressure. Unable to do anything other than pull over on an interstate with my family. Again, very dangerous. The vehicle would not restart and could not be shifted out of park. Had to have the vehicle towed again. Have also had at least 8 recalls on the vehicle. Unbelievably dangerous situations with my family, aside from inconvenient and expensive.

Filed Aug 22, 2026 · Engine, Suspension · CO

My 2023 GMC Yukon Denali XL, used as a commercial vehicle for my business, experienced sudden and complete engine failure at approximately 70,000 miles with no prior warning. No check engine light, no unusual noise, and no other symptoms. The vehicle had previously been inspected/serviced under GM Safety Recall 25V‑274 (L87 Engine Loss of Propulsion) and had been deemed safe prior to this failure. The failure occurred while driving on a two-lane road in Durango, CO. The vehicle lost all propulsion and came to a stop in the roadway, blocking the lane of travel and forcing other vehicles to cross into the oncoming traffic lane to go around the disabled vehicle. This created a serious and immediate hazard to myself and to oncoming traffic. The vehicle was not driveable and had to be towed. The dealer confirmed catastrophic engine failure requiring a complete engine replacement. After the engine replacement, the Morehart Murphy GMC dealership in Durango also failed to properly recalibrate vehicle sensors. They did not reinstall certain suspension components that had been removed for the engine replacement, requiring multiple additional dealership visits to resolve along with recalibration of the air ride suspension. After the replacement I was getting messages that the vehicle was "too low to drive with caution" and "Reduced Acceleration Drive With Care." This vehicle failure occurred during our peak season (June 10-July 2). The vehicle being out of service, I was required to rent a replacement vehicle at my own expense because GM did not provide a loaner vehicle. I estimate loss revenue at $1k/day. When I attempted to raise this issue with GM directly, their response was to submit letter to a P.O. Box, with no other means of resolution or contact offered. Given that this vehicle had already undergone the recall remedy and was represented as safe, this incident is relevant to the federal safety agency's ongoing investigation into post-recall L87 engine failures (Recall Query RQ26001).

Filed Jul 14, 2026 · Electrical, Engine · VA

While driving about 70 mph in the express lanes, the vehicle suddenly lost power and drifted like it went into neutral. There were no warning symbols. The vehicle could not restart even while coasting. After stopping, it locked itself in park and would not shift out of park. My family and I were trapped on the express lanes for over an hour in a dangerous location. The vehicle stayed stuck in park even on the tow truck. The dealer confirmed metal in the oil filter, a blown main fuse, and knocking when starting. The recall inspection and remedy were already done, but the failure still happened. The vehicle is undriveable and the required recall repair cannot be completed because the replacement engine is on backorder with no ETA.

Filed Jun 11, 2026 · Engine, Transmission · SD

My wife and I were traveling to Denver CO to pick up my son and grandson from the airport. The engine started to make a very exaggerated rattle. We found a dealership near our motel where we took the vehicle to and were told not to drive home that the engine needed to be replaced. We had to arrange our own transportation for both us and the vehicle 8 hrs back to our home in Rapid City, SD where our local dealership replaced the engine. The vehicle had approximately 65,000 miles when this occurred. Fortunately we were in a populated area when this occurred as there is a lot of very sparsely populated area between our home and Denver. This malfunction not only cost me a lot of money but also put my family at risk in unfamiliar areas.