Subaru Legacy 2020–2022 — technical service bulletin
Bulletin 15-270-20R · NHTSA communication 10219470 · issued Aug 2, 2022
Technical service bulletin
communication type
Electrical System
component
2020–2022
model years
6
vehicle entries
Official summary
This bulletin provides instruction for use of a new reprogramming procedure to optimize the Denso Gen 4 Audio and Navigation system utilized in the models listed. (Firmware Over-The Air) FOTA.
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.