Freightliner Cascadia 2019–2022 — technical service bulletin
Bulletin SF622REV · NHTSA communication 10208395 · issued Feb 26, 2022
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2019–2022
model years
6
vehicle entries
Official summary
Revised Field Service Campaign for Cascadia, 49X ABS MBSP+ Controller Software Update
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.