Technical Service Bulletin 22517 — 2021 INTERNATIONAL CV
FUEL SYSTEM, DIESEL
Bulletin Details
| TSB ID | 22517 |
| Manufacturer | |
| Vehicle | 2021 INTERNATIONAL CV |
| Component | FUEL SYSTEM, DIESEL |
| Communication Date |
Bulletin Summary
In extreme cold ambient conditions, the Diesel Exhaust Fluid (DEF) tank may become frozen and result in engine derate until the DEF tank is thawed. Emissions may increase when dosing is suspended while the DEF is frozen.
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.