WenmarOpen by Wenmar Pro

Service bulletins for the 2019 Western Star 4700

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.

301 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Software are shown. Show all

Bulletins, newest first
17TS-05REV22020-10-21. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Revised Technical Service Letter for Detroit DT12 TCM GHG17 Only; Bootloader Update. On Detroit DT12 equipped vehicles, it may be necessary to complete an additional step in the programming process when updating the TCM software.
709-142018-02-12. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 709-14 SPN 3216 (MCM) (GHG14)
703-142018-02-12. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 703-14 SPN 3556 (ACM) (EPA10)
716-142018-02-12. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 716-14 SPN 4077 (MCM)(EPA07 EPA10;GHG14
704-142018-02-12. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 704-14 SPN 520200 FMI 6 (IPPC)(GHG14)
705-142018-02-12. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 705-14 SPN 520203 FMI 6 (IPPC)(GHG14)
707-142018-02-12. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 707-14 SPN 520229 FMI 3 (IPPC) (GHG14

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