GMC DF9500 1977: SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
NHTSA Campaign ID Number: 78V098000
| Make | Model | Year |
|---|---|---|
| GMC | DF9500 | 1977 |
| Date Owners Notified | Date Received by ODI | Date Added to Database |
| 1978-04-26 | 1978-05-03 | 1979-10-12 |
Manufacturers Involved: General Motors, LLC
Component: SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
Potential Number Of Units Affected: 59
Report Initiator: MFR MFR Report
Regulation Part Number: 571
Federal Motor Vehicle Safety Standard Number: 121
THESE VEHICLES DO NOT CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS". THESE VEHICLES WERE BUILT WITH AN INCORRECT RESISTOR BOARD IN THE EATON CONTROLLER ON THE WHEEL LOCK CONTROL VALVE.
DEALER WILL REMOVE THE INCORRECT RESISTOR BOARD AND INSTALL THE CORRECT ONE, WITHOUT CHARGE TO OWNER.
VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH EATON ANTI-LOCK SYSTEMS.SYSTEM: SERVICE BRAKES; ANTI-LOCK SYSTEMS.CONSEQUENCES OF DEFECT: THIS INCORRECT RESISTOR BOARD COULD CAUSE THE WHEELLOCK CONTROL SYSTEM TO BECOME INOPERATIVE AT SPEEDS OVER 35 MPH. IN THE EVENTWHEEL LOCK-UP DOES OCCUR, LOSS OF VEHICLE CONTROL AND AN ACCIDENT COULD RESULT.NOTE: THIS CONDITION WOULD BE SIGNALED TO THE DRIVER BY ILLUMINATION OF THEYELLOW WHEEL LOCK CONTROL LIGHT.
