Freightliner Cascadia 2019–2022 — technical service bulletin
Bulletin CALFTL54-002 · NHTSA communication 10194444 · issued May 7, 2019
Technical service bulletin
communication type
Electrical System
component
2019–2022
model years
4
vehicle entries
Official summary
Customer Advisory Letter on Enabling Horn Alarm with the Door Open and the Park Brake Set
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.