Subaru Ascent 2017–2019 — technical service bulletin
Bulletin 15-240-19R · NHTSA communication 10173195 · issued Mar 31, 2020
Technical service bulletin
communication type
Electrical System
component
2017–2019
model years
11
vehicle entries
Official summary
This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize effciency while addressing customer concerns.
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.