Subaru Ascent 2017–2019 — technical service bulletin
Bulletin 11-196-20 · NHTSA communication 10171104 · issued Jan 31, 2020
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2017–2019
model years
5
vehicle entries
Official summary
This Service Information Bulletin announces part number change information for the Positive Crankcase Ventilation (PCV) valves used on the models listed above.
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.