OFFICIAL NHTSA RECALL
91V033000
Parking Brake:driveline:air
Reported Feb 20, 1991 · VOLVO GM HEAVY TRUCK CORP
Summary
IMPROPER PARK BRAKE CONTROL VALVES MAY HAVE BEEN INSTALLED; THE SUSPECT VEHICLE HAVE DISK BRAKES WITH PARK BRAKE VALVE DESIGNED FOR DRUM BRAKES.
Consequence
TRUCKS LEFT WITH PARK BRAKES ENGAGED COULD BEGIN TO ROLLAFTER THE DISK BRAKES COOLED, AND COULD RESULT IN A VEHICLE CRASH WITHOUTWARNING.
Remedy
REPLACE CONTROL VALVE WITH THE CORRECT DISK BRAKE VALVE.
Notes
SYSTEM: PARKING BRAKE CONTROL VALVES.VEHICLE DESCRIPTION: HEAVY TRUCKS.
This campaign page uses the representative official campaign record. Applicability-specific source variants appear on the linked vehicle pages. Recall counts refer to campaigns, not affected vehicles.
Vehicle entries in this campaign
This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗