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.
THE LOSS OF SERVICE BRAKES CAN OCCUR, INCREASING THE RISK OF A CRASH.
DEALERS WILL REPLACE THE SUSPECT VALVES.
VOLVO TRUCK RECALL NO. RVXX0002.OWNER NOTIFICATION BEGAN MARCH 28, 2000. 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.ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).