United States 99V234000
Blue Bird Body Company
The problem
VEHICLE DESCRIPTION: FRONT ENGINE SCHOOL BUSES EQUIPPED WITH ALLISON WORLD TRANSMISSIONS. THESE BUSES DO NOT FULLY COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 102, "TRANSMISSION, SHIFT LEVER SEQUENCE, STARTER INTERLOCK, AND TRANSMISSION BRAKING EFFECT." THE NEUTRAL SAFETY SWITCH IS WIRED INCORRECTLY ALLOWING THE STARTER TO ENGAGE WHEN THE IGNITION IS TURNED "ON," FOLLOWED BY THE TRANSMISSION SELECTOR BEING PLACED IN FORWARD OR REVERSE POSITIONS, AND THEN THE IGNITION TURNED TO THE "START" POSITION.
Risk
THIS CONDITION WOULD CAUSE THE ENGINE TO STAR AND RUN IF THE IGNITION WAS TURNED TO THE "START" POSITION, INCREASING THE RISK OF A CRASH.
What owners should do
OWNERS WILL BE PROVIDED WITH PARTS AND INSTRUCTIONS NECESSARY TO MODIFY THE ENGINE STARTER/TRANSMISSION SHIFT ELECTRICAL CIRCUITRY. IF AN OWNER SO DESIRES, A DEALER CAN PERFORM THE MODIFICATION FOR THEM.
Units 101