Freightliner Cascadia 2017–2022 — technical service bulletin
Bulletin SS3091-FTL 2021 · NHTSA communication 10201684 · issued Sep 15, 2021
Technical service bulletin
communication type
Lane Departure
component
2017–2022
model years
6
vehicle entries
Official summary
Service Solution for Damaged SGA Wires at GrabHandle Located on Right A Pillar. The field had reported failed VRDU modules related to wires damage for the SGA.
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.