2021 IC Bus Cesb Recalls, Problems & Safety Rating

4 safety recalls on file

The 2021 IC Bus Cesb has 4 safety recalls on file with NHTSA.

Owners have filed 3 complaints with NHTSA.

The most-reported problem area is Engine (2 reports).

4Recalls
3Owner complaints
0Crashes reported
n/aNHTSA safety rating
Is the repair still open on your Cesb?

A recall covers specific vehicles. Your VIN shows whether yours still needs the free repair.

2021 IC Bus Cesb recalls

Buses May Lack Floor Reinforcement, Raising Crash Injury Risk

Recall 25V580Sep 4, 2025457 vehicles affected

Certain IC Bus school buses may not have had an underfloor reinforcement installed.

Brake fluid leak can cause electrical short and fire risk

Recall 25V503Aug 6, 202516,553 vehicles affected

Brake fluid can leak from the brake pressure switch assembly into its electrical components, causing an electrical short-circuit in the brake system.

Brake Fluid Leak Can Cause Electrical Fire

Recall 23V398Jun 2, 202315,398 vehicles affected

Brake fluid can leak from the brake pressure switch assembly into its electrical components.

Bus Engine May Shut Down Unexpectedly, Raising Crash Risk

Recall 21V837Oct 25, 20217,322 vehicles affected

The engine control module (ECM) in certain 2020-2023 IC CE school buses may set a fault code that causes the engine to shut down unexpectedly while the bus is in operation.

Most common 2021 IC Bus Cesb problems

Problem areas named in the 3 complaints owners filed with NHTSA.

Problem areaReports
Engine2
Fuel/Propulsion System1
Unknown Or Other1

What owners report

2026-06-10, Unknown Or Other
Exhaust leaks caused by calapsed exhaust manifold pipes on 34 IC units with PSI engines. they are wrapped with aluminium covering with insulation. This in turn makes high heat tempuraters that split and burn up and disfigure pipes. Which can cause a fire if any oil leakage or fuel occurs. It also has been snapping exhaust manifold bolts away from manifdolds.
2025-10-23, Engine
THis is a school bus- Exhaust downpipes leading into the catalytic converters melted down and created large holes in the exhaust pipe itself. Extreme heat developed by engine.
2025-04-07, Engine
School buses. We have a fleet of these and the condition is happening repeatedly and to almost every bus with this PSI brand 8.8L gasoline engine. The engine exhaust downpipes melt from excessive heat and/or fuel. The pipes then crack and produce an exhaust leak near the body firewall. Potential for exhaust and flame to escape from the pipe.

2021 IC Bus Cesb questions

Does the 2021 IC Bus Cesb have any recalls?

Yes. NHTSA lists 4 safety recalls for the 2021 IC Bus Cesb: Buses May Lack Floor Reinforcement, Raising Crash Injury Risk; Brake fluid leak can cause electrical short and fire risk; Brake Fluid Leak Can Cause Electrical Fire; Bus Engine May Shut Down Unexpectedly, Raising Crash Risk. Recall repairs are normally free at an authorized dealer.

What are the most common problems with the 2021 IC Bus Cesb?

Based on 3 owner complaints filed with NHTSA, the most-reported problem areas are Engine (2), Fuel/Propulsion System (1), Unknown Or Other (1).

How do I check if a recall on my 2021 IC Bus Cesb has been fixed?

Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.

Other IC Bus Cesb years

Other 2021 IC Bus models