Subaru Ascent 2019–2020 — technical service bulletin
Bulletin 16-139-22R · NHTSA communication 10231295 · issued Jan 9, 2023
Technical service bulletin
communication type
Power Train
component
2019–2020
model years
4
vehicle entries
Official summary
CVT Assembly (WRK-21) Warranty Extension.
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.