Campaign 21V-837

Engine control module (ECM) may set a fault code that results in an unexpected engine shut down

Defect summary

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.

Consequence

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.

Source: NHTSA ODI recalls file, campaign 21V837000. Text as published by NHTSA.

Vehicles covered

One product line is covered

Owner complaints filed with NHTSA about engine and cooling on these vehicles: 7, of which 0 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 21V-837
Make	Model	Model years	Complaints on this component
IC BUS	Cesb	2020 to 2023	7

Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.

Investigation

No NHTSA investigation is linked to this recall

Most recalls are started by the manufacturer. This one lists "Manufacturer" as its origin.

Before the recall

14 service bulletins on this component came first

Distinct manufacturer communications on the same component group, make, model and model year in the 24 months before the report date.

Source: NHTSA manufacturer communications file.

Service bulletins

23V-220 Mar 30, 2023
Engine control module (ECM) may be unresponsive to throttle pedal application, which can cause the vehicle to unexpectedly slow to idle speed on…
23V-120 Feb 23, 2023
When the parking brake is applied, the automatic transmission is still in drive or reverse position, and the stationary power take-off (PTO)…
22V-691 Sep 15, 2022
Connecting rod wrist pin may crack, resulting in connecting rod failure
22V-610 Aug 10, 2022
Engine control module (ECM) may experience an internal electrical short-circuit, causing the engine to stall
22V-609 Aug 10, 2022
Engine control module (ECM) may experience an internal electrical short-circuit, causing the engine to stall
21V-838 Oct 25, 2021
Engine control module (ECM) may set a fault code that results in an unexpected engine shut down