Subaru Ascent 2017–2021 — technical service bulletin
Bulletin 16-132-20R · NHTSA communication 10185089 · issued Dec 29, 2020
Technical service bulletin
communication type
Power Train
component
2017–2021
model years
23
vehicle entries
Official summary
This Service Information Bulletin provides updated diagnostic procedures to follow when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions.
Vehicles covered
- 2019 Subaru Ascent
- 2020 Subaru Ascent
- 2021 Subaru Ascent
- 2018 Subaru Crosstrek
- 2019 Subaru Crosstrek
- 2020 Subaru Crosstrek
- 2021 Subaru Crosstrek
- 2019 Subaru Forester
- 2020 Subaru Forester
- 2021 Subaru Forester
- 2017 Subaru Impreza
- 2018 Subaru Impreza
- 2019 Subaru Impreza
- 2020 Subaru Impreza
- 2021 Subaru Impreza
- 2018 Subaru Legacy
- 2019 Subaru Legacy
- 2020 Subaru Legacy
- 2021 Subaru Legacy
- 2018 Subaru Outback
- 2019 Subaru Outback
- 2020 Subaru Outback
- 2021 Subaru Outback
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.