Freightliner Cascadia 2017–2020 — technical service bulletin
Bulletin nc-60001 · NHTSA communication 10160795 · issued Mar 25, 2019
Technical service bulletin
communication type
Equipment
component
2017–2020
model years
4
vehicle entries
Official summary
Adding HVAC Ducting and Vent for the Upper Bunk
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.