Subaru Ascent 2019–2024 — technical service bulletin
Bulletin 16-151-24R · NHTSA communication 11013551 · issued Jan 31, 2025
Technical service bulletin
communication type
Power Train
component
2019–2024
model years
19
vehicle entries
Official summary
This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on the TR690 model CVT transmissions used in the models listed.
Vehicles covered
- 2019 Subaru Ascent
- 2020 Subaru Ascent
- 2021 Subaru Ascent
- 2022 Subaru Ascent
- 2023 Subaru Ascent
- 2024 Subaru Ascent
- 2020 Subaru Legacy
- 2021 Subaru Legacy
- 2022 Subaru Legacy
- 2023 Subaru Legacy
- 2024 Subaru Legacy
- 2020 Subaru Outback
- 2021 Subaru Outback
- 2022 Subaru Outback
- 2023 Subaru Outback
- 2024 Subaru Outback
- 2022 Subaru WRX
- 2023 Subaru WRX
- 2024 Subaru WRX
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.