| Bulletin Number | Vehicle Make | Vehicle Model | Model Year | Summary |
|---|---|---|---|---|
| IK1500103 | IC BUS | CE | 2020 | Acceptable Propane Fill Adapter for Refueling<br /> |
| IK1201452 | IC BUS | CE | 2020 | CPA RCT (relative compression test) for PSI propane or gasoline V8 8.8L engines; School bus models<br /> |
| IK1400005 | IC BUS | CE | 2020 | Driveline Information Center and Troubleshooting Procedures<br /> |
| 20901 | IC BUS | CE | 2020 | To improve the Oxygen Sensor 2 (O2 sensor 2) On Board Diagnostics (OBD) monitor performance.<br /> |
| 19513 | IC BUS | CE | 2020 | The emergency roof hatch external release handle may break and prevent the hatch release mechanism from being actuated from outside the vehicle. Howev |
| IK1201398 | IC BUS | CE | 2020 | ISB 6.7 Frequent Regeneration<br /> |
| IK1300185 | IC BUS | CE | 2020 | Reduced ISB Engine Exhaust Brake Efficiency; Only vehicles with Allison 1000/2000 series transmissions<br /> |
| IK1201389 | IC BUS | CE | 2020 | Cummins ISB Fan Drive Belt Chirp; Cummins ISB and Cummins B6.7<br /> |
| 19512 | IC BUS | CE | 2020 | An unintended engine start could occur when the ignition key is in the run position and the transmission is in the park or neutral position. Only mode |
| 19506 | IC BUS | CE | 2020 | The ADB22X caliper on the left (driver side) rear corner on school bus applications may experience an unintended reduction in running clearance during |
| IK0500061 | IC BUS | CE | 2020 | CE Bus Steering Returnability Diagnostics. Only models with Tilt Columns, ESP, and Steering Switch Controls<br /> |
| IK1500097 | IC BUS | CE | 2020 | Gasoline Engine Bus Fuel System Issues<br /> |
| IK1500097 | IC BUS | CE | 2020 | Gasoline Engine Bus Fuel System Issues<br /> |
| IK0500061 | IC BUS | CE | 2020 | This document will guide the user through diagnosing steering wheels not returning to center on IC CE Buses. Only models with feature code 0005708 (ti |
| 19101 | IC BUS | CE | 2020 | The required Evaporative Emission label may have been printed with an incorrect engine family and/or model year for the engine installed at time of ma |
| IK1500097 | IC BUS | CE | 2020 | Gasoline Engine Bus Fuel System Issues<br /> |
| IK0400016 | IC BUS | CE | 2020 | Aggressive Brakes with Air Brake Foot Valve Leak on Bus; only models with feature code 04WEA - Parking Brake Interlock - With Air Brakes Only<br /> |
| REC18517 | IC BUS | CE | 2020 | The brake air line tube from the relay valve port to the left brake modulator valve may be improperly routed resulting in a kinked air line.<br /> |
| IK1500097 | IC BUS | CE | 2020 | Gasoline Engine Bus Fuel System Issues; only models built with PSI 8.8 Gasoline Engine<br /> |
| 18117 | IC BUS | CE | 2020 | Certain buses may have been built without a CH545 Key (matched key) Vandal Lock as ordered by the customer.<br /> |
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