XMC Software Update
Western Star technical service bulletin SF635 for 2021-2022 Western Star 49X.
- Bulletin number
- SF635
- Component
- Electrical system
- Summary
- XMC Software Update. Due to a software issue with the Xtra Modular Controller (XMC), some body builder-installed electrical components may not work as intended (may be intermittent or non-functioning).
Vehicles covered
- Western Star 49X 2021-2022 20212022
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