RoadVitals

NHTSA safety recall

Recall 77V181000: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:WHEEL CYLINDERS

GENERAL MOTORS CORP. · Reported to NHTSA Oct 17, 1977

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
Units potentially affectedThe manufacturer's own estimate of how many vehicles or items of equipment may contain the defect. It is not a count of failures, and not every unit in the range is necessarily affected.
636
Model years coveredModel years in our database that NHTSA matched to this campaign. Whether an individual vehicle is covered still depends on its VIN.
6
Models covered
6
Grouped from the model years above
Reported to NHTSA
Oct 17, 1977

What this recall covers

NHTSA's campaign record, quoted as published

The defect

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.

The 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.

A safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.

Campaign details

Identifiers and dates as filed with NHTSA

Manufacturer
GENERAL MOTORS CORP.
Manufacturer's campaign number
Not recorded
NHTSA campaign number
77V181000
Units potentially affected
636
Report received
Oct 17, 1977
Production range
Not recorded
Campaign type
Vehicle
Federal safety standard (FMVSS)
Not recorded

Vehicles covered

6 model years across 6 models

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.