2022 IC BUS Cesb

5 complaints on file, page 1 of 1.

1. Filed Jan 20, 2026Failure Jan 20, 2026Cottage Grove, MNEngine

   Engine exhaust head pipes before the catalytic converter melts down from excessive engine heat, creating a large exhaust hole. This is a school bus

   NHTSA complaint 11712141
2. Filed Nov 21, 2025Failure Nov 21, 2025Cottage Grove, MNEngine

   The engine exhaust downpipe melted and cracked- creating a large exhaust pipe hole near the engine exhaust manifold. Releasing exhaust gases and potential flames. This is a school bus and it happens frequently with this model.

   NHTSA complaint 11700729
3. Filed Aug 22, 2025Failure Sep 22, 202210,000 milesNorfolk, NEElectrical system

   The contact called on behalf of the owner of a 2022 IC BUS CESB. The contact works as the district mechanic for the Chase County Schools District. The contact stated that while driving the bus on a rural road, the alarm buzzer sensor on the emergency exit windows activated independently. Due to the rough conditions, the buzzer alarm activated. The windows were not loosened; however, the alarm sounded to indicate a failure. The contact had experienced the failure with the 5 school buses he oversaw. The contact stated that the alarm sound prevented the driver from safely operating the vehicle. The contact was able to recreate the failure by jumping up and down outside of the bus. The contact inspected the buzzer alarm; however, the cause of the failure was not found. The manufacturer was made aware of the failure. The failure mileage was approximately 10,000.

   NHTSA complaint 11682383
4. Filed May 15, 2025Failure May 12, 2025Cottage Grove, MNEngine, Exhaust system

   This is a school bus. Exhaust down pipe from exhaust manifold melted down and created a large hole for fumes and potential fire from excessive heat/fuel issue in engine.

   NHTSA complaint 11661105
5. Filed May 9, 2025Failure May 9, 2025Cottage Grove, MNEngine

   School Bus- Engine exhaust pipe from the exhaust manifold has melted from excessive heat in the system creating large hole for fumes and potential fire to escape. Exhaust is inadequate for the heat levels from the engine or engine performance is misprogrammed to create excessive heat/fuel. Widespread issue with many school buses in our fleet with the same powertrain.

   NHTSA complaint 11659952