Freightliner 108SD 2015–2025 — technical service bulletin
Bulletin CXA 3_25_NOx · NHTSA communication 11016309 · issued Mar 20, 2025
Technical service bulletin
communication type
Engine
component
2015–2025
model years
60
vehicle entries
Official summary
CX Advocate for NOx conversion low faults
Vehicles covered
- 2015 Freightliner 108SD
- 2016 Freightliner 108SD
- 2017 Freightliner 108SD
- 2018 Freightliner 108SD
- 2019 Freightliner 108SD
- 2020 Freightliner 108SD
- 2021 Freightliner 108SD
- 2022 Freightliner 108SD
- 2023 Freightliner 108SD
- 2024 Freightliner 108SD
- 2025 Freightliner 108SD
- 2015 Freightliner 114SD
- 2016 Freightliner 114SD
- 2017 Freightliner 114SD
- 2020 Freightliner 114SD
- 2021 Freightliner 114SD
- 2022 Freightliner 114SD
- 2023 Freightliner 114SD
- 2024 Freightliner 114SD
- 2015 Freightliner 122SD
- 2016 Freightliner 122SD
- 2017 Freightliner 122SD
- 2018 Freightliner 122SD
- 2019 Freightliner 122SD
- 2020 Freightliner 122SD
- 2021 Freightliner 122SD
- 2022 Freightliner 122SD
- 2023 Freightliner 122SD
- 2024 Freightliner 122SD
- 2025 Freightliner 122SD
- 2015 Freightliner Business Class M2
- 2016 Freightliner Business Class M2
- 2017 Freightliner Business Class M2
- 2018 Freightliner Business Class M2
- 2019 Freightliner Business Class M2
- 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
- 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
- 2020 Freightliner Classic Cascadia
- 2015 Western Star 4700
- 2016 Western Star 4700
- 2017 Western Star 4700
- 2018 Western Star 4700
- 2019 Western Star 4700
- 2020 Western Star 4700
- 2021 Western Star 4700
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.