I CURRENTLY DRIVE A 2006 TOYOTA PRIUS AND HAVE HAD NUMEROUS INSTANCES OF BRAKE SLIPPAGE WHEN GOING OVER A BUMP/POTHOLE DURING DECELERATION OR ACCELERATION. UPON FURTHER RESEARCH AT PRIUSCHAT.COM, AN ONLINE COMMUNITY OF PRIUS OWNERS, COMMUNITY MEMBERS ADVISED THAT THIS WAS "BY DESIGN" SINCE THE VEHICLE'S COMPUTER THOUGHT THAT LOSS OF TRACTION WHEN GOING OVER AN OBSTACLE WAS CONSIDERED AS A STABILITY ISSUE HENCE DIS-ENGAGING THE BRAKES (ABS). I HAVE HAD SEVERAL FENDER BENDERS WITHOUT THE AIR-BAG DEPLOYING THOUGH. *TR