THE TWILIGHT SENTINEL POTENTIOMETER (THUMBWHEEL CONTROL) MIGHT HAVE BEEN MANUFACTURED WITH ELECTRICAL CONTACTS WHICH COULD RESULT IN AN INTERMITTENT HEADLIGHT CIRCUIT.
Consequence & remedy
Consequence: WITH THE TWILIGHT SENTINEL SYSTEM ON, THE INTERMITTENTCIRCUIT COULD CAUSE HEADLIGHT AND INSTRUMENT PANEL LIGHTS TO GO OUT. SUDDENLOSS OF HEADLIGHTS COULD REDUCE DRIVER VISIBILITY AND MIGHT RESULT IN A VEHICLECRASH WITHOUT PRIOR WARNING.
Remedy: INSTALL A NEW PART IN ONE OF THE VEHICLES CONTROL COMPUTERS TO PREVENT THIS CONDITION FROM OCCURING.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2
C89001 · Throttle NON-RETURN
Opened Mar 6, 1989 · Closed Jan 16, 1990
Status: closed (inferred from source dates) · Vehicle Speed Control:linkages
There is no summary currently available
EA88036 · Rear Disc Brakes
Opened Jul 22, 1988 · Closed Aug 30, 1991
Status: closed (inferred from source dates) · Service Brakes, Hydraulic
SUMMARY: CORROSION IN THE REAR BRAKE CALIPER PREVENTS AUTOMATIC ADJUSTMENT FOR PAD WEAR. THIS MAY EVENTUALLY CAUSE LOSS OF REAR SERVICE BRAKE AND PARKING BRAKE. GM HAS ADDED CORROSION PROTECTION AND CHANGED SPRING RATE TO CORRECT PROBLEM. SAME BASIC DESIGN USED ON ALL MODELS IDENTIFIED.
1987 Cadillac Eldorado Problems, Complaints & Recalls | Skip That Year