How many recall campaigns are listed for the 2021 Ic Bus Cesb?

4 campaign records are listed in this dataset for this make, model, and model year.

Does this page confirm that my vehicle is affected?

No. This model-level record is not a VIN lookup and does not determine vehicle eligibility or repair status. Check official NHTSA resources for the vehicle identification number.

Where do the campaign summaries come from?

The summaries and related details are shown from public NHTSA recall records. The local dataset was retrieved 2026-11-01.

Vehicle recall record

2021 Ic Bus Cesb

4 recall campaigns · 2021–2025 · 2 with a do-not-park-indoors warning

Campaigns: 4
First notice: 2021-10-25
Latest notice: 2025-09-04
Same-make model-year average: 4.0

Risk markers carried in the record

Safety-related source flags

2 park-outside warnings

These labels reflect flags carried in the collected record. Read each official notice for its full scope and current remedy information.

The markers above summarize fields available in this dataset. A missing marker is not a safety finding. Recall status and remedy eligibility can depend on vehicle identification number, equipment, production date, and whether a repair has already been completed.

Recall distribution by component

3 component categories

Counts and shares use the vehicle-level recall records shown below. The horizontal bar is scaled to the largest category on this page.
Component	Campaigns	Share
SERVICE BRAKES, HYDRAULIC	2	50.0%
ENGINE AND ENGINE COOLING	1	25.0%
STRUCTURE	1	25.0%

Component labels follow the source record's component field. Where the source includes a more detailed subcomponent after a colon, this distribution groups the record under the first component segment. Shares are calculated against 4 campaigns and rounded to one decimal place, so displayed percentages may not sum to exactly 100 percent.

Recall dates by calendar year

3 calendar years

These are recall notice dates, not vehicle model years.
Calendar year	Campaigns	Relative volume
2021	1
2023	1
2025	2

The timeline groups campaign records by their reported recall date. This explains why the date range (2021–2025) can begin before or end after model year 2021. The underlying vehicle may be covered by notices issued in several different calendar years.

Recall campaign details

4 vehicle-level records

Campaign summaries, consequences, and remedies are preserved from the collected NHTSA source text.
Campaign	Date	Component	Summary and source details	Flags
25V580000	2025-09-04	STRUCTURE:BODY	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 integr… Read the complete source text 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.	No listed flag
25V503000	2025-08-06	SERVICE BRAKES, HYDRAULIC:FLUID	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… Read the complete source text 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.	Park outside
23V398000	2023-06-02	SERVICE BRAKES, HYDRAULIC:FLUID	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 caus… Read the complete source text 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.	Park outside
21V837000	2021-10-25	ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)	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. Read the complete source text 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.	No listed flag

Each row represents a campaign listed for this make, model, and model year. A campaign can also cover other vehicles. The excerpt above is a direct beginning of the source summary; expand a row to read the complete summary and any consequence or remedy text included in the local record.

How 2021 Ic Bus Cesb compares within Ic Bus

1 listed 2021 model-year records

Other collected Ic Bus records for model year 2021.
Vehicle	Campaigns	Date range
No other Ic Bus model-year record is present in this dataset.

This comparison is calculated from vehicle records for the same make and model year in this snapshot. It is a simple arithmetic average, not an industry benchmark. A model may appear under more than one configuration in the source data, and campaign counts do not indicate the probability that a specific vehicle has an unresolved defect.

Data source and interpretation

NHTSA Office of Defects Investigation, retrieved 2026-11-01. Recall records reflect manufacturer reports submitted to NHTSA. Absence of a recall here does not mean a vehicle is defect-free.

This page reports 4 campaign records, groups them into 3 component categories, and places the notice dates into these calendar years: 2021: 1; 2023: 1; 2025: 2. These are derived views of the supplied records, not additional findings from NHTSA.

The collection includes model-year records with one or more recalls. It is not a complete vehicle history, VIN eligibility result, repair-status check, safety rating, or guarantee that the source has no later updates. Confirm current campaign details and vehicle applicability with official NHTSA information and the manufacturer.