General Motors, LLC: Safety Recalls in 1981

THE HYDRAULIC BRAKE FLUID USED IN CERTAIN VEHICLES MAY FAIL TO COMPLY WITH THE BRAKE FLUID BOILING POINT REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 116, "MOTOR VEHICLE BRAKE FLUIDS". BRAKING EFFICIENCY MAY BE REDUCED AND VEHICLE STOPPING DISTANCE INCREASED, ESPECIALLY WHEN HARD OR FREQUENT BRAKING RAISES BRAKE FLUID TEMPERATURE.

THE MECHANISM WHICH LOCKS THE WHEELCHAIR LIFT PLATFORM OUTER BARRIER IN THE "UP" POSITION DURING PLATFORM LIFT AND LOWER MODES MAY MALFUNCTION. THIS CAN RESULT IN THE OUTER BARRIER COLLAPSING.

THE SPARE WHEEL IS ONE INCH WIDER THAN THE MAXIMUM APPROVED RIM WIDTH AND FAILS TO COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 120, "TIRE SELECTION AND RIMS FOR MOTOR VEHICLES OTHER THAN PASSENGER CARS".

DURING ASSEMBLY THE UPPER STEERING COLUMN SHAFT PINCH BOLT MAY NOT HAVE BEEN SUFFICIENTLY TIGHTENED. MOVEMENT MAY OCCUR BETWEEN THE UPPER STEERING SHAFT AND THE YOKE, CAUSING ACCELERATED PINCH BOLT WEAR AT THE "WHISTLE SLOT" IN THE SHAFT. PINCH BOLT WEAR COULD CAUSE THE YOKE TO SLIP FROM THE SHAFT.

UNDER CERTAIN CONDITIONS, THE REAR BRAKES COULD LOCK UP WITHOUT PRIOR WARNING DURING HIGH DECELERATION BRAKING. THE PROBLEM MAY BE CAUSED BY DEFECTIVE PROPORTIONER VALVES IN THE BRAKING SYSTEM.

THE INVOLVED VEHICLES DO NOT CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 210, "SEAT BELT ASSEMBLY ANCHORAGES", IN THAT THE DOOR FRAME-TO-BODY CENTER PILLAR INTERLOCK ON THE FRONT SEAT BELTS OF THESE VEHICLES MAY BE MISALIGNED.

THE FRONT LEFT UPPER CONTROL ARM NUTS MAY NOT HAVE BEEN SECURELY TIGHTENED. THE NUTS MAY LOOSEN AND COME OFF AND WITH CONTINUED DRIVING THE CONTROL ARM FRONT BOLT MAY WORK ITS WAY OUT OF POSITION OR BECOME DISPLACED.

ON CERTAIN VEHICLES, THE SEAT BELT RETRACTORS IN THE REAR SEATING POSITIONS CONTAIN FIRST LOCK POSITIONS WHICH WILL NOT LOCK WHEN USED BY SMALLER PASSENGERS. THIS FAILS TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, "OCCUPANT CRASH PROTECTION".

THE ENGINE-TO-BODY GROUND CABLE ON CERTAIN VEHICLES MAY HAVE BEEN DAMAGED DURING MANUFACTURE. THE CABLE COULD EVENTUALLY BREAK DUE TO THE RELATIVE MOTION BETWEEN THE ENGINE AND BODY DURING VEHICLE OPERATION.

"TX" HEAVY DUTY WHEELS MAY HAVE BEEN MANUFACTURED WITH LAMINATED STEEL. THE WHEEL DISC MAY FRACTURE AND THE WHEEL AND TIRE COULD PARTIALLY OR COMPLETELY SEPARATE FROM THE VEHICLE.

THE POWER BRAKE VACUUM HOSES MAY FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 106, "BRAKE HOSES". THE MATERIAL USED IN THE HOSES WILL NOT PERFORM ACCORDING TO SPECIFICATIONS. THE PURPOSE OF THIS REGULATION IS STATED AS, "TO REDUCE DEATH AND INJURIES OCCURRING AS A RESULT OF BRAKE SYSTEM FAILURE FROM PRESSURE OR VACUUM LOSS DUE TO HOSE ASSEMBLY RUPTURE".

THE BOLTS THAT ATTACH THE LOWER REAR CONTROL ARM TO THE FRAME MAY FRACTURE. THE REAR CONTROL ARM SUPPORTS AND POSITIONS THE REAR AXLE. FRACTURE OF THE BOLTS WOULD ALLOW THE CONTROL ARM TO DROP FREE.

THE ELECTRO-CLEAR REAR WINDOW DEFOGGERS CONTAIN A DEFECT WHICH CAUSES THE GLASS TO SHATTER WITHOUT IMPACT DURING OR SOME TIME AFTER USE OF THE DEFOGGER. VERTICAL ELECTRICAL STRIPS MAY DETERIORATE AND CAUSE HOT SPOTS THAT CAN RESULT IN BREAKAGE OF THE REAR GLASS.

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.

THE STEEL USED IN SOME COMPACT SPARE WHEELS IS TOO THIN. WHILE IN SERVICE THE WHEEL MAY FRACTURE, RESULTING IN A PARTIAL OR COMPLETE SEPARATION OF THE WHEEL AND TIRE FROM THE VEHICLE.