Freightliner Cascadia 2015–2026 — technical service bulletin
Bulletin FleetCom_SS 3163-FTL · NHTSA communication 11026453 · issued Nov 20, 2025
Technical service bulletin
communication type
Engine
component
2015–2026
model years
12
vehicle entries
Official summary
Fleet Communications for Power Steering Reservoir Fill Cap Venting
Vehicles covered
- 2015 Freightliner Cascadia
- 2016 Freightliner Cascadia
- 2017 Freightliner Cascadia
- 2018 Freightliner Cascadia
- 2019 Freightliner Cascadia
- 2020 Freightliner Cascadia
- 2021 Freightliner Cascadia
- 2022 Freightliner Cascadia
- 2023 Freightliner Cascadia
- 2024 Freightliner Cascadia
- 2025 Freightliner Cascadia
- 2026 Freightliner Cascadia
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.