Freightliner Cascadia 2020–2023 — technical service bulletin
Bulletin CALFTL31-006 · NHTSA communication 10241572 · issued Aug 3, 2023
Technical service bulletin
communication type
Structure
component
2020–2023
model years
4
vehicle entries
Official summary
Customer Advisory Letter for Center Drive Wheel Fairing Frame Rail Support Bracket Inspection
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.