Technical Service Bulletin 20903 — 2021 IC BUS CE
SERVICE BRAKES, AIR
Bulletin Details
| TSB ID | 20903 |
| Manufacturer | |
| Vehicle | 2021 IC BUS CE |
| Component | SERVICE BRAKES, AIR |
| Communication Date |
Bulletin Summary
The electrical harness to the air dryer heater may have been assembled without the ground circuit for the heater element to function. School bus only; NOT TRANSIT BUS
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2021 IC BUS CE
21508
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
21508 Interim
ELECTRICAL SYSTEM
21508 Interim
ENGINE AND ENGINE COOLING
IK0900141
EQUIPMENT ADAPTIVE/MOBILITY
20112
FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
20110
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
20110
EQUIPMENT
IK0800591
ELECTRICAL SYSTEM
IK2200147
EQUIPMENT ADAPTIVE/MOBILITY
IK2200147
EQUIPMENT