Freightliner Cascadia 2016–2020 — technical service bulletin
Bulletin 17TS-12REV · NHTSA communication 10169699 · issued Jan 2, 2020
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2016–2020
model years
30
vehicle entries
Official summary
Technical Service Letter for GHG17 Heavy Duty Engine Platform 1-BOX Aftertreatment System (ATS) Wire Harness experiencing chaffing caused by vibration and dirt collecting in the harness conduit.
Vehicles covered
- 2016 Freightliner Cascadia
- 2017 Freightliner Cascadia
- 2018 Freightliner Cascadia
- 2019 Freightliner Cascadia
- 2020 Freightliner Cascadia
- 2016 Western Star 4700
- 2017 Western Star 4700
- 2018 Western Star 4700
- 2019 Western Star 4700
- 2020 Western Star 4700
- 2016 Western Star 4800
- 2017 Western Star 4800
- 2018 Western Star 4800
- 2019 Western Star 4800
- 2020 Western Star 4800
- 2016 Western Star 4900
- 2017 Western Star 4900
- 2018 Western Star 4900
- 2019 Western Star 4900
- 2020 Western Star 4900
- 2016 Western Star 5700
- 2017 Western Star 5700
- 2018 Western Star 5700
- 2019 Western Star 5700
- 2020 Western Star 5700
- 2016 Western Star 6900
- 2017 Western Star 6900
- 2018 Western Star 6900
- 2019 Western Star 6900
- 2020 Western Star 6900
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.