Subaru Ascent 2017–2019 — technical service bulletin
Bulletin 15-221-18R · NHTSA communication 10161820 · issued May 10, 2019
Technical service bulletin
communication type
Equipment
component
2017–2019
model years
13
vehicle entries
Official summary
This bulletin provides helpful information about operating conditions observed in the field for Technicians to use when diagnosing customer concerns which may arise while operating Harman Gen 3.0 and 3.1 Navigation and Display Audio systems. We will continue to add to this bulletin as more information becomes available.
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.