*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Electrical system › Instrument panel › Speedometer/odometer
Odometer Fraud. The contact purchased a 2008 GMC Yukon. The contact discovered that there was a mileage discrepancy after the purchase. The vehicle was an independent dealer sale. At the time of purchase, the mileage was 157,944. It was later discovered while checking the Carfax report, that the mileage was 312,118.
Nov 15, 2025 · 312,118 milesAir bags
The contact owns a 2008 GMC Yukon. The contact received notification of NHTSA Campaign Number: 21V050000 (Air Bags) and the vehicle was taken to the dealer for the recall repair; however, the dealer failed to repair the vehicle on the scheduled date and retained the vehicle without providing a loaner vehicle. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the issue. The contact had not experienced a failure.
Jul 31, 2026Power train
The contact owns a 2008 GMC Yukon. The contact stated that while driving at an undisclosed speed, the transmission shifted from first gear to second gear and the vehicle intermittently stalled. The contact shifted to park and restarted the vehicle, and the vehicle was shifted into drive and returned to normal operation. The failure reoccurred on several occasions. The vehicle was taken to several independent mechanics; however, the diagnostic result was unknown. The manufacturer was not notified of the failure. The failure mileage was unknown.
Jul 23, 2026Air bags
the passenger-side frontal airbag inflators, The determination was made that the propellant in these inflators may degrade after long-term exposure to high humidity and temperature cycling, which could cause the inflator to rupture during a deployment.
Aug 7, 2025Engine and engine cooling › Exhaust system
I purchased a MagnaFlow aftermarket catalytic converter system for my 2008 GMC Yukon SLT 5.3L through Walmartâs online marketplace, sold by a third-party vendor called OurDealsRock. The product was advertised as â50-state legalâ and compatible with vehicles registered in New York State. However, shortly after installation, my check engine light turned on, and diagnostic codes P0420 and P0430 (Catalyst System Efficiency Below Threshold) appeared. Initially, I thought this was a minor sensor issue, but over time, the vehicleâs performance gradually deteriorated. I noticed reduced acceleration, poor fuel economy, and eventually significant loss of power. The vehicle began shaking under…
Oct 15, 2024Structure › Body
Dashboard is severely cracked & rattles so badly that it interferes with hearing outside & inside noises & communication. Has gotten worse over past year. Dealer confirmed that the problem was prevalent among several GM models, including my model. I was also told that a class action suit was filed against GMC for this problem, but was dismissed by judicial system.
Oct 27, 2019Engine
When beginning to drive forward after coming to a stop at an intersection. The vehicle will often stall in the middle of the intersection. Requiring me to switch it transmission into natural and restart it as itâs rolling. I almost gotten rear ended many times I always get honked at. It just a matter of time before it causes an accident. It sometime happens after turning as well. I looked at forums on this gmc Yukon hybrid. And it looks like many other owners are asking the same question and nobody is coming up with any answers. Other customers say the dealer told them the hesitation is Normal. I took my truck into a local repair shop and he called me after three weeks saying it was done,…
Oct 4, 2023Power trainFire
It started shutting off at a light for autostop.but when it would turn green it would intermittently just drop out of autostop without restarting. Then may start back up or maybe not, many time after restarting at the light it would died in the middle of the inspection. A parasitic draw kept killing the accessory 12 V battery replaced the 12 V battery but the problem continued. When the truck was running it would run flawlessly,before stalling. The code said to replace the auxiliary fluid pump. I had it a new auxiliary fluid pump installed. After this the vehicle wouldnt crank. They then worked through a service bulliten fixing a list of areas were the harness was chaffed and shorted. The…
Jul 23, 2022
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.