Freightliner Cascadia 2020–2022 — technical service bulletin
Bulletin FAB286 · NHTSA communication 10199391 · issued May 1, 2021
Technical service bulletin
communication type
Suspension
component
2020–2022
model years
3
vehicle entries
Official summary
Freightliner Action Bulletin FAB286 Cascadia Rear Suspension Ride Height
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.