OFFICIAL NHTSA RECALL
77V181000
Service Brakes, Hydraulic:foundation Components:drum:wheel Cylinders
Reported Oct 17, 1977 · GENERAL MOTORS CORP.
Summary
THE REAR BRAKE WHEEL CYLINDER RETAINER ON THE INVOLVED VEHICLES MAY NOT HAVE BEEN PROPERLY INSTALLED. SHOULD THE WHEEL CYLINDER RETAINER BECOME COMPLETELY DISENGAGED, THE WHEEL CYLINDER COULD MOVE OUTBOARD CAUSING A LOSS OF BRAKE FLUID AND A LOSS OF REAR BRAKING ACTION.
Consequence
Not supplied in the source record.
Remedy
THE DEALER WILL REPOSITION THE REAR WHEEL BRAKE CYLINDER RETAINERS, FREE OF CHARGE, ON ALL AFFECTED VEHICLES.
Notes
VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: SERVICE BRAKES; REAR WHEEL BRAKE CYLINDER RETAINERS.CONSEQUENCES OF DEFECT: LOSS OF REAR BRAKING CAPABILITY CAN OCCUR WITHOUTWARNING AND AN ACCIDENT COULD RESULT.NOTE: LOSS OF BRAKING ACTION WILL BE SIGNALLED TO DRIVER BY THE WARNING LIGHTON THE DASH AND BY AN INCREASE IN BRAKE PEDAL TRAVEL AND INCREASED VEHICLESTOPPING DISTANCES.
This campaign page uses the representative official campaign record. Applicability-specific source variants appear on the linked vehicle pages. Recall counts refer to campaigns, not affected vehicles.
Vehicle entries in this campaign
This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗