14Affected configurations shown320,677Potential units affected—Latest completion context
What can happen
Safety consequence
FATIGUE CRACKS MAY DEVELOP IN THE BRAKE VACUUM BOOSTER HOUSING. THIS MAY CAUSE A VACUUM LEAK AND REDUCE THE EFFECTIVENESS OF THE BRAKES. AFTER PROLONGED USE, THE CRACKS MAY DEVELOP TO THE EXTENT THAT THE BOOSTER MAY SEPARATE FROM THE VEHICLE.
What fixes it
Official remedy
VEHICLES WILL BE INSPECTED FOR FATIGUE CRACKS IN THE BRAKE VACUUM BOOSTER. THOSE WITHOUT CRACKS WILL HAVE A SUPPORT BRACE INSTALLED. THOSE WITH EVIDENCE OF CRACKING WILL HAVE A NEW BRAKE VACUUM BOOSTER AND SUPPORT BRACE INSTALLED. THIS SERVICE WILL BE PROVIDED AT NO CHARGE.
Recall lifecycle
Repair completion history
Campaign-level completion reporting. This does not determine whether a particular VIN has been repaired.
Latest reported completion: available in the live DOT record.
Affected vehicles
Vehicle configurations connected to 81V010000
1980 CHEVROLET C20Open vehicle record →1980 CHEVROLET C30Open vehicle record →1980 CHEVROLET K20Open vehicle record →1980 CHEVROLET K30Open vehicle record →1980 GMC C20Open vehicle record →1980 GMC K30Open vehicle record →1980 GMC K20Open vehicle record →1979 CHEVROLET C20Open vehicle record →1979 CHEVROLET C30Open vehicle record →1979 CHEVROLET K20Open vehicle record →1979 CHEVROLET K30Open vehicle record →1979 GMC K30Open vehicle record →1979 GMC C20Open vehicle record →1979 GMC K20Open vehicle record →
Owner action
Campaign pages describe the public recall record. To determine whether your specific vehicle has an unrepaired recall, use your VIN and verify the current status through NHTSA.