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Manufacturer recall number

IC BUS recall 21507

IC BUS calls it 21507. NHTSA filed it as campaign 21V837000 on Oct 25, 2021: engine and engine cooling on the 2020–2023 IC BUS Cesb, 7,322 vehicles potentially affected. One recall, two numbers — the dealer quotes the manufacturer’s, the federal record carries NHTSA’s.

What NHTSA has under this number

Source: 49 CFR Part 573 filings
NHTSA campaignVehiclesComponentFiledAffectedSeverity
21V8370002020–2023 IC BUS CesbEngine And Engine CoolingOct 25, 20217,322high
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. Fix 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.

The manufacturer’s own words as filed for 21V837000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. 21507 is the number IC BUS assigned in its own system: it is what appears on the owner letter, on the dealer’s service screen and on the repair order. 21V837000 is the number NHTSA filed the same recall under when the manufacturer reported it, and it is the one every federal record, this site included, is keyed on.

The repair is free by federal law for vehicles up to fifteen years old. Whether one particular vehicle is included is settled by its VIN against the manufacturer’s build list, not by its model year.

Check one specific vehicle

Both lookups check a VIN against the manufacturer’s own list and say whether the repair is still outstanding on that vehicle.

Common questions

Source: NHTSA, 49 CFR Part 573

Is 21507 the same recall as 21V837000?

Yes. 21507 is IC BUS’s own number for it; 21V837000 is NHTSA’s. One recall, two references.

Which vehicles does 21507 cover?

2020–2023 IC BUS Cesb, 7,322 vehicles by the manufacturer’s count. A recall covers a build range, so the VIN decides whether one particular vehicle is in it.

Does the 21507 repair cost anything?

No. The manufacturer must remedy a safety defect at no charge for vehicles up to 15 years old from first sale.