Freightliner 108SD 2020–2026 — technical service bulletin
Bulletin CXA 10_25_Air Dryer Purge · NHTSA communication 11025094 · issued Oct 16, 2025
Technical service bulletin
communication type
Service Brakes
component
2020–2026
model years
52
vehicle entries
Official summary
CX Advocate for Experiencing Excessive Purging from Air Dryer
Vehicles covered
- 2020 Freightliner 108SD
- 2021 Freightliner 108SD
- 2022 Freightliner 108SD
- 2023 Freightliner 108SD
- 2024 Freightliner 108SD
- 2025 Freightliner 108SD
- 2026 Freightliner 108SD
- 2020 Freightliner 114SD
- 2021 Freightliner 114SD
- 2022 Freightliner 114SD
- 2023 Freightliner 114SD
- 2024 Freightliner 114SD
- 2026 Freightliner 114SD
- 2020 Freightliner 122SD
- 2021 Freightliner 122SD
- 2022 Freightliner 122SD
- 2023 Freightliner 122SD
- 2024 Freightliner 122SD
- 2025 Freightliner 122SD
- 2026 Freightliner 122SD
- 2020 Freightliner Business Class M2
- 2021 Freightliner Business Class M2
- 2022 Freightliner Business Class M2
- 2023 Freightliner Business Class M2
- 2024 Freightliner Business Class M2
- 2025 Freightliner Business Class M2
- 2026 Freightliner Business Class M2
- 2020 Freightliner Cascadia
- 2021 Freightliner Cascadia
- 2022 Freightliner Cascadia
- 2023 Freightliner Cascadia
- 2024 Freightliner Cascadia
- 2025 Freightliner Cascadia
- 2026 Freightliner Cascadia
- 2023 Freightliner E-Cascadia
- 2024 Freightliner E-Cascadia
- 2025 Freightliner E-Cascadia
- 2020 Thomas Built Buses Saf-T-Liner C2 Jouley
- 2021 Thomas Built Buses Saf-T-Liner C2 Jouley
- 2022 Thomas Built Buses Saf-T-Liner C2 Jouley
- 2023 Thomas Built Buses Saf-T-Liner C2 Jouley
- 2024 Thomas Built Buses Saf-T-Liner C2 Jouley
- 2025 Thomas Built Buses Saf-T-Liner C2 Jouley
- 2026 Thomas Built Buses Saf-T-Liner C2 Jouley
- 2022 Western Star 47X
- 2023 Western Star 47X
- 2024 Western Star 47X
- 2025 Western Star 47X
- 2026 Western Star 47X
- 2024 Western Star 57X
- 2025 Western Star 57X
- 2026 Western Star 57X
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.