repaired · 2026 Q3
Structure: body
Risk. Reduced structural integrity may increase the risk of injury in a crash.
2021 Ic Bus CesbProblems, recalls & complaints
NHTSA has logged 3 owner complaints about the 2021 Ic Bus Cesb, most often about the engine. It is covered by 4 safety recalls, and for recall 25V-580 the manufacturer reports only 31% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through June 10, 2026. Updated daily.
Complaints by system
Where the 2021 Ic Bus Cesb has problems
3 complaints grouped by the system owners reported.
2Engine
1Fuel/propulsion system
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 2 | 0 |
| Fuel/propulsion system | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
4 recalls
2021 Ic Bus Cesb recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2026 Q3
Service brakes, hydraulic: fluid
Park outsideRisk. An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
repaired · 2025 Q2
Service brakes, hydraulic: fluid
Park outsideRisk. An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
repaired · 2024 Q1
Engine: engine control module (ecu/ecm)
Risk. Unexpected engine shut down can increase the risk of a crash.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Ic Bus.
Best & worst years
2021 vs. every other Cesb year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Cesb median. How we score
'02'03'04'05'06'07'08'09'10'11'16'17'18'19'20'21'22'23'24'25'26'27
- Avoid
- Caution
- Solid
- Best
- Not rated
In owners' words
What Cesb owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
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.
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…
Own a 2021 Cesb?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.