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Air Bags
07/31/2026
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.
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Power Train
07/23/2026
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.
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Air Bags, service Brakes, engine
08/07/2025
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.
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Engine And Engine Cooling
10/15/2024
I purchased a MagnaFlow aftermarket catalytic converter system for my 2008 GMC Yukon SLT 5.3L through Walmart’s online marketplace, sold by a third-party vendor called OurDealsRock. The product was advertised as “50-state legal” 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 vehicle’s performance gradually deteriorated. I noticed reduced acceleration, poor fuel economy, and eventually significant loss of power. The vehicle began shaking under load, misfiring, and overheating. These symptoms worsened steadily—not immediately—but progressively after continued driving with the aftermarket converter installed. I had the vehicle inspected by a certified mechanic, who confirmed that the MagnaFlow converter was not CARB-compliant, was not approved fo...
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Structure
10/27/2019
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.
