RepairPal Expert Overview
Power brake assist may be lost unexpectedly.
General Motors will notify owners of affected vehicles beginning March 17, 2006. If you experience braking issues, or you don't receive notification and you feel you should have, please contact your dealer. It's helpful to have your vehicle identification number (VIN) when you call.
The engine check valve for the brake booster may fail from exposure to elevated temperatures. This could result in sudden loss of power brake assist. The increased braking effort could result in a crash. Dealers will install a redesigned check valve to correct this concern. The General Motors Recall number is 05057.