GMC C30 Recalls

Jun 06, 1979 – 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.

Jan 16, 1979 – THE FRONT HOSES ON THE INVOLVED VEHICLES MAY HAVE IMPROPERLY ORIENTED HOSE FITTINGS, RESULTING IN A RUBBING CONTACT BETWEEN THE RIGHT BRAKE HOSE AND THE UPPER CONTROL ARM OF THE FRONT SUSPENSION OR IN A TWISTED LEFT HOSE RESULTING IN A FAULTY ATTACHMENT AT THE FRAME FITTING. SHOULD EITHER OF THESE CONDITIONS EXIST, THEY COULD EVENTUALLY RESULT IN BRAKE HOSE FAILURE CAUSING LOSS OF BRAKE FLUID AND CONSEQUENT LOSS OF THE FRONT BRAKING ACTION.

Aug 10, 1977 – ON THE INVOLVED VEHICLES, THE NUTS WHICH ATTACH THE BRAKE MASTER CYLINDER TO THE HYDRO-BOOST UNIT MAY HAVE BEEN OVER-TIGHTENED. THIS COULD HAVE CAUSED STRIPPED THREADS AND CRACKED ATTACHING FLANGES. SHOULD THESE NUTS FAIL, THE PARTS MAY SEPARATE AND LOSS OF SERVICE BRAKES WOULD RESULT.

Jun 22, 1977 – THE FRONT SUSPENSION CONTROL ARMS WERE ASSEMBLED WITH BALL JOINTS WHICH MAY CONTAIN SOCKETS THAT WERE NOT PROPERLY HEAT-TREATED. THIS MAY CAUSE THE SOCKET TO WEAR RAPIDLY AND ALLOW THE BALL JOINT STUD TO SEPARATE FROM THE SOCKET, CAUSING EITHER THE LEFT OR RIGHT WHEEL SUSPENSION TO COLLAPSE.