Freightliner Cascadia 2017–2022 — technical service bulletin
Bulletin SB54-350 · NHTSA communication 10208390 · issued Feb 21, 2022
Technical service bulletin
communication type
Electrical System
component
2017–2022
model years
6
vehicle entries
Official summary
Freightliner Service Bulletin for Battery Load Disconnect Switch Installation. Cab load disconnect switches (CLDS), also known as positive load disconnect, installed on selected vehicles can reduce battery drain when the vehicle is not operational.
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.