Freightliner Cascadia 2020 — technical service bulletin
Bulletin SB54-318 · NHTSA communication 10166840 · issued Oct 30, 2019
Technical service bulletin
communication type
Equipment
component
2020
model years
1
vehicle entries
Official summary
Service bulletin describing procedures to install a cab-to-chassis redundant ground strap from the Main Ground Junction Box (MGJB) to the frame.
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.