2020 INTERNATIONAL HV

PARKING BRAKE

Navistar, Inc. (Navistar) is recalling certain 2018-2021 International HV, 2019-2021 International RH, 2019-2022 International MV, and 2022 International HX vehicles. A software error in the Body Control Module (BCM) may allow the vehicle to overcome the park brake during power-take-off (PTO) operation.

Risk: A parking brake that does not hold can allow the vehicle to move unexpectedly and increase the risk of a crash or injury.

FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL

Navistar, Inc. (Navistar) is recalling certain 2018-2019 International WorkStar, International DuraStar, 2019-2021 International HV, International MV, and IC Bus RE Commercial Bus vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.

Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.

FUEL SYSTEM, DIESEL: PRE-HEATER

Navistar, Inc. (Navistar) is recalling certain 2017-2020 International WorkStar and International DuraStar, 2018-2019 IC 1300 FBC Commercial and IC HC Commercial, 2018-2021 IC CE Commercial, International MV and International HV, and 2019-2021 IC TC Commercial buses with Cummins B6.7 diesel engines with a fuel module option number FS90301 or FS90453. The electric fuel heater within the fuel module may overheat and cause plastic in the fuel heater to melt and potentially catch fire. It may also lead to engine stalling.

Risk: A fire increases the risk of injury. An engine stall can increase the risk of a crash.

ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE

Navistar, Inc. (Navistar) is recalling certain 2019-2021 International MV, 2020-2021 International HV, 2014-2020 International DuraStar and 2015-2018 International WorkStar vehicles. When the parking brake is applied and the automatic transmission is still in the drive or reverse position and the stationary PTO switch is engaged by the operator, the engine may rev and overcome the parking brake's ability to keep the vehicle from moving.

Risk: Unexpected Vehicle movement can increase the risk of a crash or injury.

FUEL SYSTEM, DIESEL: PRE-HEATER

Navistar, Inc. (Navistar) is recalling certain 2017-2020 International DuraStar and WorkStar, 2018-2020 IC Bus CECB, International HV and MV, 2018-2019 IC Bus 1300 FBC and HCCB, and 2019-2020 IC Bus TCCB vehicles equipped with Cummins B6.7 diesel engines with fuel module option number FS90301 or FS90453. The electric fuel heater within the fuel module may overheat and cause plastic in the fuel heater to melt and potentially catch fire. It may also lead to engine stalling.

Risk: A fire increases the risk of injury. An engine stall can increase the risk of crash.

WHEELS:HUB

Navistar, Inc. (Navistar) is recalling certain 2020 International HV Severe Service Diesel Trucks. The steer axle hubs may be insufficiently lubricated or not lubricated at all, which may result in wheel bearing damage.

Risk: Lack of lubrication may result in a wheel separating from the front axle spindle, increasing the risk of crash.

SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE

Navistar, Inc. (Navistar) is recalling certain 2020 International HV 6X4 vehicles. The vehicles were built with a non-Quick Release Modulator Valve (NQRMV) instead of a Quick Release Modulator Valve (QRMV), which may affect the brake release time. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."

Risk: A longer time required to exhaust the brake chambers could increase the risk of a brake or tire fire.