Freightliner Cascadia 2020–2021 — technical service bulletin
Bulletin TechTalk7518 · NHTSA communication 10180397 · issued Sep 9, 2020
Technical service bulletin
communication type
Equipment
component
2020–2021
model years
2
vehicle entries
Official summary
Tech talk discussion on P4 radio for 500k system.
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.