Freightliner Cascadia 2017–2020 — technical service bulletin
Bulletin CALFTL54-007 · NHTSA communication 10175413 · issued May 22, 2020
Technical service bulletin
communication type
Electrical System
component
2017–2020
model years
4
vehicle entries
Official summary
Customer Advisory Letter for Cab-to-Chassis Redundant Ground Strap Installation - FTL Service Bulletin 54-318. Our records indicate that you are the owner of certain vehicles, and DTNA has decided to share the following documentation with you. On New Cascadia vehicles Penske/Black Horse units built prior to May 23, 2019, cab wiring can be damaged with an incorrect ground location or loose ground connections. This can result in inoperable LIN bus-related steering wheel switches, cruise control dropout, poor AM/FM radio reception, and an inoperable steering wheel clockspring. Installing a redund
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.