CERTAIN THOMAS BUILT MY 2004 AND 2005 SAF-T-LINER C2 SCHOOL BUSES MANUFACTURED BETWEEN AUGUST 13, 2004, AND MARCH 1, 2005. DUE TO SOFTWARE COMMUNICATION CONFLICTS, THE TRAFFIC CONTROL DEVICES SUCH AS THE FLASHING WARNING LIGHTS OR THE STOP SIGNAL ARM MAY NOT WORK OR MAY NOT WORK CORRECTLY. THESE BUSES FAIL TO CONFORM TO THE FEDERAL MOTOR VEHICLE SAFETY STANDARD REQUIREMENTS OF 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT, AND STANDARD 131, SCHOOL BUS PEDESTRIAN SAFETY DEVICES.