The parking brake may not release automatically due to a failed vacuum switch or actuator. Our technicians tell us that if vacuum is supplied to the actuator when the transmission is in gear, the vacuum switch is functioning and replacing the actuator should correct this concern.
Car Problem Reports
Cadillac DTS Vacuum Brake Release Switch Can Fail
Cadillac DTS Problem
Visitor, 2007 Cadillac DTS, 41,000 mi
RELEASED EMERGENCY BRAKE MANUALLY AND LOST MOST OF MY BRAKING ABILITY WITH WARNING LIGHTS FOR BRAKES AND TRACTION CONTROL COMING ON TO GET SERVICED