Freightliner Cascadia 2019–2022 — technical service bulletin
Bulletin SB54-359 · NHTSA communication 10222229 · issued Sep 28, 2022
Technical service bulletin
communication type
Electrical System
component
2019–2022
model years
4
vehicle entries
Official summary
Freightliner Service Bulletin for ABS mBSP ECU Software Update Fault Code 629-11. New Cascadia vehicles manufactured from September 12, 2018 through March 22, 2021 that are equipped with WABCO Anti-Lock Braking System (ABS) controllers log excessive 629-11 fault codes, which can lead to additional downstream fault codes. The ABS controller will receive a software update to eliminate erroneous fault codes and ensure proper function.
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.