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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: Automatic transmission are shown. Show all

Bulletins, newest first
IK13001622018-04-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. Transmission Cooler Line Routing; Only models built Prior to November 29, 2017 with Cummins ISL engine
MIN-151072015-09-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:MANUAL TRANSMISSION. TRANSMISSIONS CONTROLLER FOR SPEED; FEATURE CODE AND APPLICATION CODE THAT IDENTIFIES TORQUE CONTROL SHIFTING *CN

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.