1Affected configurations shown11Potential units affected—Latest completion context
What can happen
Safety consequence
FMVSS 121 REQUIRES THAT THE AIR OPERATED OIL LINE TO THE WET AIR PRESSURE TANK CONTAIN AN AUTOMATIC HIGH PRESSURE VALVE TO PROTECT THE BRAKE AIR LINES. THIS PRESSURE VALVE WAS OMITTED. CONSEQUENCE OF DEFECT: THE OMISSION OF THE PROTECTION PRESSURE VALVE COULD ALLOW THE AIR LINE PRESSURE TO INCREASE TO THE POINT THAT IT WOULD DAMAGE THE AIR LINES AND WOULD RESULT IN DRAINING AIR PRESSURE FROM THE BRAKE SYSTEM CAUSING LOSS OF BRAKES WHICH COULD LEAD TO AN ACCIDENT.
What fixes it
Official remedy
ADD PRESSURE PROTECTION VALVE TO THE TEE IN THE AIR ACCESSORY LINE.
Recall lifecycle
Repair completion history
Campaign-level completion reporting. This does not determine whether a particular VIN has been repaired.
Latest reported completion: available in the live DOT record.
Affected vehicles
Vehicle configurations connected to 85V171000
Owner action
Campaign pages describe the public recall record. To determine whether your specific vehicle has an unrepaired recall, use your VIN and verify the current status through NHTSA.