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.
FixHALDEX IS CONDUCTING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN. DEALERS WILL REPLACE THE SUSPECT VALVES. 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 HALDEX AT 1-816-891-2470 OR KALMAR/MAGNUM AT 1-903-759-5490.