Freightliner Cascadia 2017–2020 — technical service bulletin
Bulletin SB54-321 · NHTSA communication 10166839 · issued Oct 30, 2019
Technical service bulletin
communication type
Equipment
component
2017–2020
model years
4
vehicle entries
Official summary
Service bulletin describing the procedures for service harness installation and steering wheel clockspring replacement.
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.