My 2007 GMC Sierra has faulty ABS sensors which activate at low speed stops and greatly extends the stopping distance of the vehicle. Searching the internet usenet list it seems that a good portion of GM fullsize pickups and SUVS have faulty ABS brake sensors which activate during low speed braking. 1999 - 2007 vehicles seem to be the most affected and include Sierra, Yukon, Suburban, and Silverado trucks. GM has known about the issue for many years and has issued a service bulletin on the issue but failed to issue recall, this leaves the owner stuck with the problem to deal with on their own.

- Worcester, MA, USA

The contact owns a 2007 GMC Sierra 1500. While driving less than 5 mph, the contact slightly engaged the brake pedal and the anti-lock braking system began to activate with an unusual vibration. The failure occurred ten times when driving at low speeds on both uneven road surfaces and normal road conditions. The vehicle was not diagnosed or repaired. The failure mileage was approximately 17,000. Updated 02/03/11 the consumer stated the truck was repaired the dealer. Updated 03/17/11

- Warren, MI, USA

The contact owns a 2007 GMC Sierra 1500 classic. The contact stated that when applying the brakes, the brake pedal would drop a few inches and the vehicle would abnormally lunge forward. There was no warning lights illuminating. The vehicle was taken to the dealer who repaired the front wheel sensors and cleaned the mounting surface at the contacts expense. The manufacturer was called who informed the contact there were no recalls or warranties on teh vehicle and offered no further assistance. The failure mileage was 37,202.

- Independence, MO, USA

Front brake rotors are warping.

- Somerville, AL, USA

The brake lights turn off if you press the brake and then slightly depress the pedal, although the brakes are still applied the brake lights are not on. I first noticed it while backing out of a driveway at night, and I did not think it was a safety concern until I saw my wife stop from 45 mph and the brake lights flashed and then turned off until she came to a complete stop. I took the truck to the dealership they thought there was a problem with the truck, and replaced the brake light switch. The problem did not go away. The same defect is on every truck on the car lot. The dealership wrote on my invoice that the owner presumes that when the brake pedal is pressed the brake lights should be on. Duh!!

- Humble, TX, USA

The contact owns a 2007 GMC Sierra 1500. While driving 15 mph, the brakes failed twice. The vehicle has been to the dealer approximately 15 times since it was purchased in August of 2007. The dealer turned the rotors and changed the brakes and the seat belt assembly. The dealer was unable to duplicate the failure. The fuel gauge failed and the bed of the vehicle separated from the frame. The engine lifters failed to function properly as well. The failure mileage was 12,000 and current mileage was 12,100.

- Lebanon, MO, USA