ON PASSENGER VEHICLES WITH VEHICLE IDENTIFICATION NUMBERS (VIN) STARTING WITH 1NX ONLY AND BUILT FROM JANUARY 8 THROUGH FEBRUARY 13, 2002, IT IS POSSIBLE FOR THE BOLTS THAT JOIN THE REAR BRAKE AND HUB ASSEMBLY TO THE REAR AXLE CARRIER TO BE LOOSE DUE TO INSUFFICIENT TIGHTENING DURING THE ASSEMBLY PROCESS.
Safety Risk
IF THE VEHICLE IS OPERATED IN THIS CONDITION, ONE OR MORE OF THE FOUR BOLTS COULD COME LOOSE, CAUSING AN ABNORMAL NOISE FROM THE REAR AXLE AREA. IN THE EVENT THAT ALL FOUR BOLTS LOOSEN COMPLETELY, SEPARATION OF THE REAR BRAKE AND HUB ASSEMBLY FROM THE REAR AXLE CARRIER COULD OCCUR, WHICH COULD LEAD TO A LOSS OF VEHICLE CONTROL.
Remedy
DEALERS WILL PROPERLY TIGHTEN THE BOLTS. OWNER NOTIFICATION BEGAN MARCH 21, 2002. 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 TOYOTA AT 1-800-331-4331.
ON CERTAIN HEAVY DUTY CLASS 8 TRUCKS, THE FORWARD AND/OR REAR DRIVE AXLE UPPER AXLE SEAT CAN BREAK ALLOWING THE AXLE TO SHIFT OUT OF ALIGNMENT.
Safety Risk
THIS COULD RESULT IN A LOSS OF AXLE STABILITY INCREASING THE RISK OF A CRASH.
Remedy
DEALERS WILL INSPECT THE UPPER AXLE SEAT FOR A CERTAIN DATE CODE THAT IS STAMPED ON THE PART, AND THOSE AXLES WILL BE REPLACED. OWNER NOTIFICATION BEGAN MARCH 15, 2002. 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 VOLVO TRUCKS AT 1-800-528-6586.
AT PORT OF ENTRY, A QUALITY OVERCHECK OF THE DIFFERENTIAL PINION SHAFT TORQUE WAS PERFORMED. THIS CHECK REQUIRED THE REMOVAL OF THE DRIVESHAFTS. WHEN THE DRIVESHAFTS WERE REINSTALLED, THE WRONG SIZED NUTS WERE USED.
Safety Risk
THE NUTS CAN LOOSEN, ULTIMATELY CAUSING THE DISCONNECTION OF ONE OR BOTH OF THE DRIVESHAFTS RESULTING IN LOSS OF CONTROL OF THE VEHICLE.
Remedy
DEALERS WILL REPLACE THE HARDWARE ON THE INVOLVED VEHICLES WITH HARDWARE OF THE APPROPRIATE SPECIFICATIONS.
THE UPPER TRANSAXLE OIL COOLER HOSE CAN PULL OUT OF THE CRIMPED COUPLING AT THE TRANSAXLE END OF THE LINE ASSEMBLY.
Safety Risk
IN THE EVENT OF SEPARATION OF THE COUPLING, AN OIL LEAK CAN OCCUR WHICH, WHEN EXPOSED TO AN IGNITION SOURCE, COULD RESULT IN AN ENGINE COMPARTMENT FIRE.
Remedy
DEALERS WILL INSTALL A NEW UPPER TRANSAXLE OIL COOLER LINE TO THE TRANSAXLE.
THE DIFFERENTIAL OIL OF THE TRANSAXLE IS LOST OVER TIME DUE TO EVAPORATION. LOW OIL LEVELS CAUSE PREMATURE BEARING AND GEAR WEAR AND EVENTUAL FAILURE OF THE DIFFERENTIAL.
Safety Risk
IN THE EVENT OF FAILURE, THE VEHICLE'S DRIVE WHEELS COULDLOSE POWER. IN EXTREME CIRCUMSTANCES, THE FRONT WHEELS LOCK, CAUSING RAPIDDECELERATION RESULTING IN POSSIBLE LOSS OF VEHICLE CONTROL AND AN ACCIDENT.
Remedy
DRAIN AND REPLACE THE DIFFERENTIAL GEAR OIL WITH OIL HAVING HIGHER PERFORMANCE CHARACTERISTICS.
