Subaru Legacy 2020–2021 — technical service bulletin
Bulletin 15-275-20 · NHTSA communication 10183700 · issued Nov 10, 2020
Technical service bulletin
communication type
Equipment
component
2020–2021
model years
4
vehicle entries
Official summary
This Service Information Bulletin provides a testing procedure for the microphone used in Denso CP1 infotainment systems.
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.