1998 Volvo WX

ON CERTAIN HEAVY-DUTY CLASS 8 VEHICLES, THE BODY BUILDER WIRING OPTION WAS MIS-WIRED IN SUCH A WAY THAT THE AUTO NEUTRAL WITH SERVICE BRAKE STATUS OPTION MAY ALLOW THE TRANSMISSION TO GO INTO FORWARD GEAR WITHOUT THE DRIVER'S FOOT PRESSING DOWN ON THE BRAKE PEDAL FIRST.

RiskUNINTENDED MOVEMENT OF THE VEHICLE COULD PUT PERSONS IN DANGER INSIDE AND OUTSIDE THE VEHICLE.

FixVOLVO TRUCKS WILL NOTIFY ITS CUSTOMERS AND INSTALL AN ADDITIONAL AIR OPERATED STOP LIGHT SWITCH AND THE NECESSARY WIRING CHANGES. OWNER NOTIFICATION IS EXPECTED TO BEGIN DURING SEPTEMBER 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT AT 1-800-528-6586.

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS BUILT WITH BENDIX AIR ABS WITH AN EC-17 1030R ELECTRONIC CONTROL UNIT (ECU), THERE HAVE BEEN REPORTS OF UNWANTED ABS ACTIVATION AT LOW SPEEDS CAUSED BY 1) CHAFED ABS WHEEL SPEED SENSOR WIRES ON ROTATING PARTS OR 2) A DAMAGED COMPONENT AT THE WHEEL END THAT GENERATES A CERTAIN TYPE OF ERRATIC SENSOR SIGNAL.

RiskTHIS CONDITION COULD CAUSE THE ABS ECU TO EXHAUST THE AIR AT THE AIR BRAKE MODULATORS FOR ONE OR MORE OF THE WHEELS. THIS COULD RESULT IN EXTENDED BRAKING DISTANCES AND A POSSIBLE CRASH.

FixDEALERS WILL REPLACE THE ABS ECU.

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH HALDEX MANIFOLD DASH VALVES (MDV) USED IN TRACTOR AND TRAILER PARKING BRAKES. THESE VALVES DO NOT MEET THE REQUIREMENTS OF FMVSS NO. 121, "AIR BRAKE SYSTEMS." A LOSS OF THE ISOLATION OF THE TWO BRAKE SYSTEM CIRCUITS CAN RESULT IN THE LOSS OF SERVICE BRAKES WHEN THERE IS ANOTHER FAILURE OF ONE OF THE TWO BRAKE CIRCUITS.

RiskTHE LOSS OF SERVICE BRAKES CAN OCCUR, INCREASING THE RISK OF A CRASH.

FixDEALERS WILL REPLACE THE SUSPECT VALVES.

VEHICLE DESCRIPTION: DUAL STEER CLASS 8 HEAVY DUTY TRUCKS. THE FRONT STEER AXLE BRAKES DO NOT COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 121, "AIR BRAKE SYSTEMS."

RiskA SLOW BRAKE RELEASE TIME CAN CAUSE PREMATURE BRAKE WEAR WHICH IF LEFT UNCHECKED COULD LEAD TO BRAKE FAILURE AND VEHICLE CRASH.

FixDEALERS WILL INSTALL A RELAY VALVE IN THE FRONT STEERING AXLE BRAKE SYSTEM.

VEHICLE DESCRIPTION: CLASS 8 HEAVY DUTY TRUCKS. THE AIR SUSPENSION CONTROL VALVE SUPPLY LINE WAS NOT PLUMBED THROUGH AN AIR PRESSURE PROTECTION VALVE. IN THE EVENT OF A FAILURE, THERE WOULD BE LOSS OF AIR PRESSURE IN THE 'B' SYSTEM AIR RESERVOIR THAT SUPPLIES AIR PRESSURE FOR THE FRONT STEER AXLE BRAKES.

RiskTHIS CONDITION WOULD RESULT IN INCREASED STOPPING DISTANCES.

FixDEALERS WILL INSTALL THE NECESSARY AIR PRESSURE PROTECTION VALVE.

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH AFTERMARKET ALUMINUM DUAL WHEELS, 22.5X8.25, ONE-PIECE, TUBELESS, SUPPLIED BY ACCURIDE/AKW. CERTAIN DESIGN REVISIONS COMBINED WITH PROCESS CONDITIONS CAUSED FATIGUE CRACKS IN THESE WHEELS.

RiskTHIS CONDITION CAN CAUSE FAILURE OF THESE WHEELS.

FixACCURIDE/AKW WILL REPLACE THESE WHEELS.