THE INVOLVED VEHICLES DO NOT CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS". THE WASHERS USED TO SPACE THE ANTI-LOCK SENSOR BRACKET AWAY FROM THE BRAKE SPIDER WERE OMITTED DURING ASSEMBLY. THIS OMISSION COULD CAUSE THE SENSOR BRACKET TO BE DEFORMED. BRAKING CAPABILITY COULD BE PARTIALLY LOST.
FixTHE DEALER WILL INSTALL TWO WASHERS AND REPLACE SENSORS AND AIR CONTROL VALVES ON ALL AFFECTED VEHICLES.