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RECALLROADTHE CAMPAIGN RECORD

MODEL-YEAR RECALL REPORT

2021 Ic Bus Resb recalls

NHTSA's September 21, 2026 snapshot lists 3 safety recall campaigns for the 2021 Ic Bus Resb, spanning 3 component groups. A model match does not confirm that a specific VIN is included.

Official source: NHTSA recall campaign file · Snapshot September 21, 2026

Distinct campaigns3not VIN-specific
Component groups3distinct top-level categories
Latest recordSeptember 4, 2025report received
VIN resultNot checkeduse official lookup

01 / OFFICIAL CAMPAIGNS

2021 Ic Bus Resb recall campaigns

The 2021 Ic Bus Resb report contains 3 distinct NHTSA campaigns; the most recently received record is campaign 25V580000 dated September 4, 2025.
Component
STRUCTURE
Report received
September 4, 2025
Potential units
457campaign-wide
Defect and consequence

Defect: International Motors, LLC (International) is recalling certain 2016-2026 IC Bus CESB and 2016-2021 RESB school buses. The underfloor reinforcement may not have been installed, compromising the structural integrity of the buses. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 210, "Seat Belt Assembly Anchorages" and 222, "School Bus Passenger Seating and Crash Protection.".

Why it matters: Reduced structural integrity may increase the risk of injury in a crash.

Remedy

Dealers will inspect and install a reinforcement channel as necessary, free of charge. Owner notification letters were mailed December 8, 2025. Owners may contact International customer service at 1-800-448-7825. International's number for this recall is 25514.

Owner notification: December 8, 2025 · Filing manufacturer: International Motors, LLC

CAMPAIGN

NHTSA 23V371000

Component
SERVICE BRAKES, AIR
Report received
May 25, 2023
Potential units
19,376campaign-wide
Defect and consequence

Defect: Navistar, Inc. (Navistar) is recalling certain 2021-2024 IC Bus RE, 2022-2024 IC Bus CE, and IC Bus EV school buses. The anti-lock brake system (ABS) indicator light does not remain illuminated when a malfunction exists, and when the vehicle's ignition switch is on, and the vehicle is in motion. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems.".

Why it matters: An ABS indicator light that fails to remain illuminated will not alert the driver of an ABS malfunction, which could increase the risk of a crash.

Remedy

Dealers will update the software, free of charge. Owner notification letters are expected to be mailed July 24, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 23516.

Owner notification: July 18, 2023 · Filing manufacturer: Navistar, Inc.

CAMPAIGN

NHTSA 21V367000

Component
FUEL SYSTEM, DIESEL
Report received
May 19, 2021
Potential units
933campaign-wide
Defect and consequence

Defect: Navistar, Inc. (Navistar) is recalling certain 2019-2021 IC Bus RE School Buses. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.

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

Remedy

Dealers will inspect the rail threads, and replace the rail as necessary, free of charge. Owner notification letters were mailed on June 21, 2021. Owners may contact Navistar customer service at 1-800-448-7825.

Owner notification: June 21, 2021 · Filing manufacturer: Navistar, Inc.

02 / COMPONENT BREADTH

What defects are listed for the 2021 Ic Bus Resb?

The most frequent component groups in 2021 Ic Bus Resb campaign records are Fuel System, Diesel (1), Service Brakes, Air (1), Structure (1); these counts describe filed campaigns rather than observed failure rates.
Fuel System, Diesel1
Service Brakes, Air1
Structure1