Subaru Ascent 2019–2022 — technical service bulletin
Bulletin 16-139-22 · NHTSA communication 10216977 · issued Jul 8, 2022
Technical service bulletin
communication type
Power Train
component
2019–2022
model years
6
vehicle entries
Official summary
The WRK-21 recall includes TCM reprogramming to prevent CVT chain slip. If, during the recall inspection, a vehicle is confirmed to have already experienced severe enough CVT chain slip, the CVT assembly will be replaced.
Vehicles covered
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.