This vehicle has an intermittent problem with the brakes, when turning to the right or left like when parking in a driveway or a parking spot, the brake pedal looses pressure and starting kind of shaking like when the ABS system engages and the car can't be stopped unless the brake pedal is released and applied very hard again so I can stop the car, it could happen at any given moment, I have asked several GM dealers and nobody is sure what the problem is, they are all guessing and can't guarantee to refund a diagnostic fee to troubleshoot the problem, some have said it is maybe the ABS module, the master cylinder, a kinked hose, etc. I went to several forums on line and there are several people complaining with the same issue and nobody has had any acceptable answer from GM or any dealer, they all stated that the were not able to duplicate the problem so that they could not refund the diagnostic fee, I am very concerned about this problem since I feel I am playing a russian roulette with my vehicle, I don't want to get in the situation where somebody can be seriously hurt or killed, I don't want to sell this vehicle either without telling the new owner about this problem and get him into a very serious problem, so I am writing to you to please provide me with some advise to address this extremely serious problem. I don't drive this vehicle very often since the brake problem has happened to me several times and I don't want to gamble with my life or anybody's. thank you.

- Monterey Park, CA, USA