The vacuum release actuator for the parking brake may fail, preventing the parking brake from releasing automatically. Our technicians remind us that there is a mechanical release lever on the park brake ratchet you may use if the park brake does not release automatically. (Care should be taken when manually releasing the park brake!)Google+
Car Problem Reports
Cadillac Eldorado Vacuum Brake Release Switch Can Fail
Cadillac Eldorado Problem
Average Mileage: 88,785 mi (37,500 mi - 118,000 mi)
Visitor, 1996 Cadillac Eldorado, 70,000 mi
I have to reach under dash to manually release my parking brake.
Visitor, 1999 Cadillac Eldorado, 85,000 mi
Emergency brake failed to release automatically on a vacation trip. The next morning it released and my mechanic showed me the manual release lever. The problem persists pending some shop time to replace the switch, actuator, or leaky vacuum hose (I hope).
Visitor, 1998 Cadillac Eldorado, 106,000 mi
Parking brak will not release. Must use the manual release on brake.
Visitor, 2001 Cadillac Eldorado, 105,000 mi
Parking Brake does not release automatically.
Visitor, 1998 Cadillac Eldorado, 100,000 mi
parking brake releases intermitantly