Freightliner Cascadia 2020–2023 — technical service bulletin
Bulletin ICI24-039 · NHTSA communication 11010134 · issued Oct 8, 2024
Technical service bulletin
communication type
Engine
component
2020–2023
model years
5
vehicle entries
Official summary
Important Campaign Infomration letter for DDC D23M1 - Campaign Extended
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.