Service bulletins for the 2015 International Workstar
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
254 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Cooling system are shown. Show all
| IK1201248 | 2018-02-21. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Cooling System Flush Procedure |
|---|---|
| IK1200029 | 2017-02-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. RADIATOR INTERNAL RESTRICTION AND FLUSH PROCEDURE |
| IK-0800512 | 2016-09-01. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. WORKSTAR UPPER RADIATOR HOSE UPDATE |
| 15108 | 2015-09-21. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. COOLANT LOSS AND ILLUMINATING AMBER RESULTING FROM RADIATOR INLET HOSE POSSIBLY SEPARATING FROM THE RADIATOR INLET *CN |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.