1979 Gmc K30 Recalls

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NHTSA Campaign Number: 81V010000
Manufacturer: GENERAL MOTORS LLC
Manufactured Begin Date: August 1st, 1978
Manufactured End Date: June 1st, 1979
Date of Owner Notification: January 9th, 1981

Defect Summary:
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.

Corrective Summary:
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 Notes:
VEHICLE DESCRIPTION: LIGHT TRUCKS EQUIPPED WITH VACUUM POWER DISC/DRUM BRAKES.SYSTEM: SERVICE BRAKES; VACUUM BRAKE BOOSTER HOUSING.CONSEQUENCES OF DEFECT: SEPARATION WILL RESULT IN A LOSS OF BRAKING ABILITYWITHOUT PRIOR WARNING AND MAY LEAD TO AN ACCIDENT. PARTIAL LOSS OF BRAKINGABILITY MAY ALSO LEAD TO AN ACCIDENT, PARTICULARLY IN SITUATIONS WHERE MINIMUMSTOPPING DISTANCE IS REQUIRED.

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NHTSA Campaign Number: 79V142000
Manufacturer: GENERAL MOTORS LLC
Manufactured Begin Date: December 1st, 1978
Manufactured End Date: January 1st, 1979

Defect Summary:
ON THE INVOLVED VEHICLES THE BRAKE STOPLIGHT AND CRUISE CONTROL SWITCH WHICH IS OPERATED BY THE BRAKE PEDAL MAY HAVE BEEN ASSEMBLED WITH AN INCORRECT LUBRICANT ON THE ACTUATING PLUNGER. THIS CAN CAUSE THE REAR BRAKE STOPLIGHTS TO BECOME INOPERATIVE AND THE CRUISE CONTROL, IF ACTIVATED, TO STAY ELECTRICALLY ENGAGED.

Corrective Summary:
DEALER WILL INSPECT AND, IF NECESSARY, REPLACE THE BRAKE STOPLIGHT AND CRUISE CONTROL SWITCH AT NO COST TO OWNER.

Recall Notes:
VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: LIGHTING AND COMMUNICATIONS; SWITCH BUTTON RING, BRAKE LIGHTS.CONSEQUENCES OF DEFECT: WITH INOPERATIVE BRAKE LIGHTS, A VEHICLE APPROACHINGFROM THE REAR WOULD NOT BE AWARE THAT BRAKES WERE BEING APPLIED. ALSO, IF THECRUISE CONTROL FAILS TO AUTOMATICALLY DISENGAGE THROUGH BRAKE PEDAL OPERATION,VEHICLE MAY ACCELERATE WHEN THE BRAKE PEDAL IS RELEASED. EITHER CONDITION COULDRESULT IN LOSS OF VEHICLE CONTROL AND AN ACCIDENT.NOTE: OWNER IS ADVISED NOT TO ENGAGE THE CRUISE CONTROL UNTIL IT HAS BEENINSPECTED BY DEALER.