I own a 2005 buick rendezvous that is having safety issues concerning the awd brake system. four times over the last 5 years the awd and anti-lock brake system have stopped working. the latest time was today 3/8/11 when the brake system failed again and the i was barely able to stop the car before it entered a busy highway. after researching the internet it seems that numerous other people have encountered the same issues. i have had the problem repaired three other times. the wheel speed sensor and the hub have been replaced and the wiring harness repaired. *tr