Subaru Ascent 2019–2020 — technical service bulletin
Bulletin 15-236-18R · NHTSA communication 10169851 · issued Dec 30, 2019
Technical service bulletin
communication type
Equipment
component
2019–2020
model years
14
vehicle entries
Official summary
Reprograming file availability for optimization of Harman Gen 3.1 Audio and Navigation Head Units.
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.