NABI IS RECALLING 239 MY 2002-2007 BLUE BIRD C4RE AND L4RE TRANSIT BUSES EQUIPPED WITH A 'PRX1' MODULE. THE PRX1 MODULE IS A DEVICE WHICH TRANSMITS AN ELECTRIC SIGNAL TO THE INSTRUMENT CLUSTER, WHICH IS CONVERTED INTO AN AIR SYSTEM PRESSURE READING ON THE DASH MOUNTED GUAGE. ON CERTAIN MODULES, TIS READING IS INACCURATE CAUSING THE DISPLAYED PRESSURE TO BE OUTSIDE THE TOLERANCE OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, 'AIR BRAKE SYSTEMS.'
RiskIF THE AIR BRAKE SYSTEM DEVELOPS A LEAK, THE BVEHICLE OPERATOR MAY NOT BE AWARE DUE TO THE INACCURATE DASH READING. IF A LEAK OCCURS, THE SAFETY/'EMERGENCY BRAKES COULD SET WITHOUT ADEQUATE WARNING, APPLYING THE BRAKES PARTIALLY, WHICH COULD RESULT IN LOSS OF VEHICLE CONTROL, POSSIBLY CAUSING A CRASH.
FixNABI WILL PROVIDE INSTRUCTIONS TO VEHICLE OWNERS/END-USERS TO ADD A SPECIFIC WIRE TO THE MODULE, CORRECTING THE PROBLEM. THE RECALL BEGAN ON AUGUST 5, 2008. OWNERS MAY CONTACT NABI AT