Freightliner Cascadia 2017–2022 — technical service bulletin
Bulletin SB54-348 · NHTSA communication 10213222 · issued May 10, 2022
Technical service bulletin
communication type
Power Train
component
2017–2022
model years
6
vehicle entries
Official summary
Updated Freightliner Service Bulletin for Meritor Rear Axle Temperature Parameters. This bulletin replaces the version dated 1/22/2022. The build date in General Information has been added.
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.