VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH 15" (WIDTHS: 4" AND 5") AIR-ACTUATED Q-PLUS CAM BRAKE EQUIPPED WITH FEDERAL MOGUL FRICTION PRODUCTS 3030-197 BRAKE LINING (MERITOR R201) BRAKE LININGS AND ACTUATED WITH TYPE 20 AIR CHAMBERS X 5.5" SLACK ADJUSTERS. THE AFFECTED BRAKES WERE INSTALLED PREDOMINANTLY IN HEAVY TRUCK FRONT AXLE ASSEMBLIES. THESE ASSEMBLIES DO NOT FULLY SATISFY THE TEST PERFORMANCE REQUIREMENTS OF FMVSS NO. 121, "AIR BRAKE SYSTEMS."
THIS CONDITION COULD CAUSE DECREASED BRAKING EFFORT.
THE BRAKE LINING WILL BE REPLACED WITH UPGRADED BRAKE LININGS.
OWNER NOTIFICATION BEGAN DECEMBER 9, 1999. 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 WESTERN STAR AT 1-250-860-3319 OR MERITOR AT 1-248-435-3907. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).