Freightliner Cascadia 2019–2023 — technical service bulletin
Bulletin SF657 · NHTSA communication 10214909 · issued Jun 23, 2022
Technical service bulletin
communication type
Electrical System
component
2019–2023
model years
10
vehicle entries
Official summary
Field Service Campaign for Freightliner and Western Star CTP Software Update
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.