The contact owns a 2011 Chevrolet Tahoe. The contact purchased a vehicle from an independent mechanic and was informed that the brakes and rotors needed to be replaced. Also, the contact stated that the steering made noises while driving various speeds and the oil gauge fluctuated while accelerating. The contact also mentioned that the vehicle hesitated after accelerating from a stop. Also, the check engine warning indicator illuminated intermittently while driving various speeds. The manufacturer was not notified. The vehicle had not been repaired. The failure mileage was 172,000.

- Zachary, LA, USA

Transmission will not shift when pulling out it won't go and starts jumping in and out of gear and then shifts really hard and goes it's almost caused me to get hit by oncoming cars several times and it's worse on a hill jumping in and out but does fine running up and down the highway

- Lebanon, VA, USA

The contact owns a 2011 Chevrolet Tahoe. The contact stated that the vehicle shifted out of park and into reverse independently causing the vehicle to roll backwards and crash into a wooded lot. The front driver's side door was damaged due to the impact. The air bags did not deploy. The driver sustained minor injuries but did not require medical attention. No police report was filed. The vehicle was taken to an independent mechanic. The manufacturer was not made aware of the failure. The failure mileage was 45,000.

- Humble, TX, USA

Driving home from work on a dark, very cold evening during rush hour on a highway and the Tahoe suddenly loses power. As soon as this happens, lots of idiot lights and warning messages appear on the instrument cluster. Telling me that stability control is disabled and need serviced and that engine power is being reduced. I was in the left lane and had to cut through traffic to get to a a very snowy shoulder - fortunately safely. The truck continued to limp along and I managed to eventually find a safe place to stop. Turns out that the throttle body sensor was bad and that this is a known issue. I found the service bulletin online and GM fixed is right away today. There is no recall, but most GMC/Chevy forums had dozens of posts of the same situation, many where folks encountered more serious safety situations. This appears to go back many older model years as well so it seems GM should know about this issue and address it in their newer vehicles which they have not. Why does the engine cut out so suddenly and other unrelated safety features are disabled seems very dangerous in highway driving conditions.

- Erie, CO, USA

The contact owns a 2011 Chevrolet Tahoe. The contact stated that when accelerating, the vehicle would exhibit a loud clunk noise and when decelerating, the vehicle would surge abnormally. The vehicle was taken to the dealer however, the technician was unable to diagnose the failure. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 5 and the current mileage was 4,700.

- San Jose, CA, USA