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IC Bus Cesb Recall 21V837: Bus Engine May Shut Down Unexpectedly, Raising Crash Risk

NHTSA campaign 21V837, reported October 25, 2021, 7,322 vehicles potentially affected.

What this recall means for you

The engine control module (ECM) in certain 2020-2023 IC CE school buses may set a fault code that causes the engine to shut down unexpectedly while the bus is in operation.

An unexpected engine shutdown can increase the risk of a crash. A disabled school bus may also require an evacuation in uncontrolled traffic, which increases the risk of injury to passengers.

Dealers will reprogram the ECM free of charge. Owners who received the notification letter mailed January 18, 2022 can contact Navistar customer service at 1-800-448-7825 (recall number 21507). Check your vehicle identification number (VIN) for open recalls to confirm whether your bus is affected.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 21V837Navistar, Inc.
Component
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
Problem
Navistar, Inc. (Navistar) is recalling certain 2020-2023 IC CE school buses. The engine control module (ECM) may set a fault code that results in an unexpected engine shut down.
Risk
Unexpected engine shut down can increase the risk of a crash. Additionally, a disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers.
Remedy
Dealers will reprogram the ECM, free of charge. Owner notification letters notifying owners of the safety risk were mailed January 18, 2022. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 21507.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Affected vehicles

IC Bus Cesb2020202120222023