The defect
IMPROPER PARK BRAKE CONTROL VALVES MAY HAVE BEEN INSTALLED; THE SUSPECT VEHICLE HAVE DISK BRAKES WITH PARK BRAKE VALVE DESIGNED FOR DRUM BRAKES.
The risk
TRUCKS LEFT WITH PARK BRAKES ENGAGED COULD BEGIN TO ROLLAFTER THE DISK BRAKES COOLED, AND COULD RESULT IN A VEHICLE CRASH WITHOUTWARNING.
The remedy
REPLACE CONTROL VALVE WITH THE CORRECT DISK BRAKE VALVE.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Volvo Wxlm | 1989, 1990 |
Components: PARKING BRAKE:DRIVELINE:AIR
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Volvo Wxlm | 1989 | 0 | 1 |
| Volvo Wxlm | 1990 | 0 | 1 |
Other parking brake recalls in 1991
8 of the 220 recall campaigns reported to NHTSA in 1991 concerned the parking brake; VOLVO GM HEAVY TRUCK CORP filed 52 campaigns in all.
| 91V167000 23 Sept 1991 | GENERAL MOTORS CORP. |
| 91V137000 20 Aug 1991 | MERCEDES-BENZ USA, INC. |
| 91V133000 5 Aug 1991 | GENERAL MOTORS CORP. |
| 91V078000 14 May 1991 | CHRYSLER CORPORATION |
| 91V081000 26 Apr 1991 | VOLVO GM HEAVY TRUCK CORP |
| 91V055000 11 Apr 1991 | GENERAL MOTORS CORP. |
| 91V032000 19 Feb 1991 | GENERAL MOTORS CORP. |
NHTSA recalls (public domain) · all recalls of 1991