2013 IC BUS CASB

ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

Navistar, Inc. (Navistar) is recalling certain model year 2011-2016 IC Bus CE school buses manufactured November 3, 2009, to February 26, 2015, and 2012-2015 IC Bus BE school buses manufactured August 2, 2010, to September 15, 2014. The affected vehicles have a water shutoff valve, inside, forward of driver heater (feature code 48PPJ or 48PPP) that has a formed heater hose that over time, may fatigue and split resulting in hot engine coolant fluid leaking into the driver's foot area.

Risk: If hot, pressurized coolant suddenly spills into the operator's foot area, there is an increased risk of a burn injury or a crash.

EQUIPMENT ADAPTIVE/MOBILITY

Navistar, Inc. is recalling certain model year 2007-2015 IC BE and CE school buses, 2013-2015 IC AE school buses, 2007-2011 IC FE school buses, and 2007-2014 IC RE school buses equipped with certain model S2005, S2010, S5005, S5010, S5505, and S5510 wheelchair lifts by Ricon. The affected lifts are equipped with folding link arms that may have pivot holes that are too big, allowing the bearings to move out of position.

Risk: If the bearings move out of position, the stowed platform may have excessive movement resulting in failure of the platform mounting. This failure could cause the wheel chair lift platform to fall out of the vehicle when the doors are opened, increasing the risk of injury for the lift operator.

EQUIPMENT ADAPTIVE/MOBILITY

Navistar, Inc. (Navistar) is recalling certain model year 2013-2015 IC AE, 2007-2015 IC BE, CE, 2007-2011 IC FE, and 2007-2014 IC RE school buses equipped with certain model S2005, S2010, S5005, S5010, S5505, and S5510 wheelchair lifts manufactured by Ricon Corporation after January 1, 2006. The platform side plate of the affected wheelchair lifts may crack.

Risk: If the platform side plates crack, the lift platform can separate from the lift and come to rest against the vehicle's lift door. When the doors are opened, the platform may fall out, increasing the risk of injury to the lift operator.

POWER TRAIN:AUTOMATIC TRANSMISSION

Navistar, Inc. is recalling certain model year 2012-2014 model year CE school buses manufactured December 31, 2010, through November 6, 2012, and equipped with Eaton-brand hybrid automated transmissions. The software controlling the affected transmissions may improperly raise the vehicle's engine speed during downshifts without the driver's input.

Risk: The increase in engine speed may result in unintended acceleration, increasing the risk of a crash.

SEATS:BARRIERS

Navistar is recalling certain model year 2013-2014 IC Bus CE and 2013 IC Bus RE school buses, manufactured August 20, 2012, through September 4, 2012. The school bus restraining barriers may have an insufficient weld at the base of the barrier frame that does not comply with the requirement of Federal Motor Vehicle Safety Standard (FMVSS), No. 222, "School Bus Passenger Seating and Crash Protection."

Risk: The barriers may fail to restrain occupants from flying forward during crashes and sudden driving maneuvers, increasing the risk of injury.

SEATS

Navistar, Inc. is recalling certain model year 2013-2014 IC Bus AE, and 2011-2014 BE, CE, and RE buses. These buses were manufactured February 11, 2010, through June 17, 2013. The passenger seat foam padding did not adequately reduce the impact forces to the knee in the lower outside corners of the seat back during compliance testing. Thus, these buses fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 222, "School Bus Passenger Seating and Crash Protection."

Risk: In the event of a crash, the seat padding may not properly protect against knee impact force, increasing the risk of injury.

ENGINE AND ENGINE COOLING

Navistar is recalling certain model year 2013 IC brand CE buses, and 2012-2013 RE buses; manufactured from December 7, 2010, through June 26, 2012 and equipped with model year 2011 through 2013 I-6 engines and feature codes 12NUK, 12NUL, 12NUM, 12NUN, 12NUP and 12NUS. The injection pressure regulator (IPR) harness wire may break due to vibrational damage. This could cause an unexpected shut down of the engine.

Risk: An unexpected engine shut down while driving may increase the risk of a vehicle crash.

STRUCTURE:BODY:ROOF AND PILLARS

NAVISTAR IS RECALLING CERTAIN MODEL YEAR 2012 AND 2013 IC CE, RE, AND BE SCHOOL BUSES MANUFACTURED FROM APRIL 1, 2011, THROUGH MARCH 31, 2012, EQUIPPED WITH PROLO ROOF ESCAPE HATCHES. INCREASED FRICTION BETWEEN THE REAR PLATE ASSEMBLIES, P/NO. 009327, AND THE NYLON REAR POP-UP SUPPORT, P/NO. 008956, MAY RESULT IN AN OPENING FORCE OF THE PROLO ROOF HATCHES THAT EXCEEDS FEDERAL STANDARD REQUIREMENTS. THUS, THESE HATCHES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 217, "BUS EMERGENCY EXITS AND WINDOW RETENTION AND RELEASE."

Risk: IN THE EVENT OF AN EMERGENCY, EGRESS OF THE BUS MAY BE HINDERED POSSIBLY RESULTING IN INJURY TO THE VEHICLE OCCUPANTS.