I have never had any issues other than the recalls with my Tahoe. I pulled into a parking space at my bank. As I got into the space. The brakes went to the floor and I put both feet on the brake pedal at this point. The rpms went up. It was like the engine came to life by itself. It self accelerated over the concrete spacer and sidewalk into the bank's brick wall. The airbag deployed upon impact. There was never a time it decelerated. There was no one in the car but me thankfully. There were no warning lights. There were no bells warning of the failure. I would estimate it took 2-3 seconds to go from almost stopped in a parking space to hitting the brick. I am so shaken by this incident and I have no idea what to do. GMC has been informed.

- Lebanon, OR, USA

Summary: Brake failure in a Tahoe hybrid while driving, my Chevy Tahoe hybrid experienced almost total brake failure. Over several days, the brakes had became more and more "grabby." On the day of the total brake failure, with normal pressure applied to the brake pedal there would be almost no braking power. But with just a little bit more pressure applied the brakes would suddenly engage with full braking power. Suddenly, this unhappy performance degraded into almost total brake failure. It felt like I had less than 1/30th of the normal braking power. I was not going fast, and nothing was in front of me to hit, and I was a block from my destination, so I continued slowly. Before calling for a tow I let the car sit, and I tried the car again. Surprisingly, I had my grabby brakes back! I nursed the truck to the dealership where they reloaded the computer program that controls the brakes. I experienced a second total failure just as I arrived at the dealership. The techs reloaded the computer program that controls the braking system and this addressed the problem, mostly. The brakes don't exactly feel like they used to, and there is a little bit of "sudden grab" to them, but the mechanic indicated that the performance is normal for a hybrid system.

- Brighton, MI, USA

We had a 2009 Tahoe hybrid for only 4 months. On several occassions beginning in March when driving at a low speed or coasting down hill, 'check brake' lights came on. I tried to slow by pressing on the brake pedal and the brakes went to the floor and the car would not stop. I had to coast to a parking lot, put the car in neutral/park and re-start the car. The car stalled while coming down hill - very dangerous. We took it back to the dealership. They charged the battery. The very next morning backing out of the garage, again brake pedal went to the floor and had to re-start.

- Wheeling, WV, USA