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2021 IC Bus Cesb recalls

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

4 recalls found in NHTSA data as of September 22, 2026

For the 2021 IC Bus Cesb. These apply to the model and year, not to one particular vehicle: check your VIN to see whether yours is included and whether it has been repaired.

2 of these recalls carry a manufacturer safety advisory to stop driving or to park outside until repaired. See below.

Has your IC Bus been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A IC Bus dealer can also check your VIN. Recall repairs are free.

2021 IC Bus Cesb recalls, newest first

September 4, 2025NHTSA 25V580000457 vehicles potentially affected

Structure › Body

Summary
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."
Consequence
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.

This recall on nhtsa.gov

August 6, 2025NHTSA 25V50300016,553 vehicles potentially affected

Service brakes, hydraulic › Fluid

  • Park outside until repaired
Summary
International Motors, LLC (International) is recalling certain 2016-2024 IC Bus CESB school buses. The brake pressure switch assembly may leak brake fluid into the brake pressure switch's electrical components and cause an electrical short-circuit.
Consequence
An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Remedy
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will install a silicone black jumper harness, free of charge. Owner notification letters were mailed December 15, 2025. Owners may contact International customer service at 1-800-448-7825. International's number for this recall is 25510. Vehicles previously repaired under 23V398 will need to have the new remedy completed.

This recall on nhtsa.gov

June 2, 2023NHTSA 23V39800015,398 vehicles potentially affected

Service brakes, hydraulic › Fluid

  • Park outside until repaired
Summary
Navistar, Inc. (Navistar) is recalling certain 2016 and 2018-2024 IC Bus CE school buses. The brake pressure switch assembly may leak brake fluid into the brake pressure switch's electrical components and cause an electrical short-circuit.
Consequence
An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Remedy
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the brake pressure switch assembly and if necessary, the wire harness or fuse, free of charge. Owner notification letters were mailed September 29, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 23518.

This recall on nhtsa.gov

October 25, 2021NHTSA 21V8370007,322 vehicles potentially affected

Engine and engine cooling › Engine › Engine control module (ECU/ECM)

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.

This recall on nhtsa.gov

Owner complaints

Owners have filed 3 complaints about the 2021 IC Bus Cesb with NHTSA. Complaints are unverified reports from the public; NHTSA uses them to decide what to investigate.

Crashes reported
0
Fires reported
0
Injuries reported
0
Deaths reported
0

Most complained-about components

  1. Engine2
  2. Fuel/propulsion system1
  3. Unknown or other1

Other IC Bus Cesb years

Other 2021 IC Bus models

Most recalled 2021 vehicles

  1. 2021 Ford F-150 (29 recalls)
  2. 2021 Lincoln Aviator (28 recalls)
  3. 2021 Ford Explorer (26 recalls)
  4. 2021 Blue Bird Vision School Bus (26 recalls)
  5. 2021 Tesla Model X (24 recalls)
All of 2021’s most recalled vehicles

Questions

Does the 2021 IC Bus Cesb have any recalls?
4 recalls found in NHTSA data as of September 22, 2026, covering: structure, service brakes, hydraulic, engine and engine cooling. Recalls apply to the model and year; whether a particular vehicle is included, and whether it has been repaired, depends on its VIN.
How do I check if my 2021 IC Bus Cesb recall has been fixed?
Enter your 17-character VIN at nhtsa.gov/recalls, or ask a IC Bus dealer. Recall repairs are free. NHTSA's VIN search doesn't list recalls that were already repaired.
How many complaints have owners filed about the 2021 IC Bus Cesb?
3 complaints filed with NHTSA. Complaints are unverified reports from the public that NHTSA uses to decide what to investigate.