NHTSA campaign 09V220000
Hazard
DAIMLER TRUCKS IS RECALLING 1,460 MODEL YEAR 2009 AND 2010 HEAVY DUTY TRUCKS AND FCCC CHASSIS (USED ON THOMAS BUILT SCHOOL BUSES) MANUFACTURED FROM JUNE 11 THROUGH DECEMBER 16, 2008, EQUIPPED WITH CERTAIN HALDEX QUICK RELEASE VALVES (QRV). THE RUBBER DIAPHRAGM INSIDE THE QRV MAY EXPERIENCE DELAMINATION RESULTING IN SIGNIFICANT LEVELS OF AIR PRESSURE LEAKAGE PAST AND/OR THROUGH THE DIAPHRAGM, OR THE DEVELOPMENT OF A BUBBLE IN THE DIAPHRAGM WHICH MAY TRAP AIR PRESSURE IN THE VALVE AND NOT ALLOW THE SERVICE BRAKES TO RELEASE.
Consequence
MALFUNCTION OF THE AIR BRAKE SYSTEM COULD RESULT IN A VEHICLE CRASH.
Remedy
DAIMLER TRUCKS WILL NOTIFY OWNERS AND REPAIR THE BUSES FREE OF CHARGE. REPAIRS WILL BE PERFORMED BY DAIMLER TRUCKS NORTH AMERICA. THE SAFETY RECALL BEGAN ON AUGUST 12, 2009. OWNERS MAY CONTACT DAIMLER TRUCKS TOLL-FREE AT 1-800-547-0712.
The text above is quoted verbatim from the NHTSA record. Confirm the affected units and the remedy with the manufacturer or NHTSA. Recall data may be incomplete, delayed, or superseded.