Subaru Legacy 2017–2019 — technical service bulletin
Bulletin 07-181-20 · NHTSA communication 10182223 · issued Oct 16, 2020
Technical service bulletin
communication type
Engine
component
2017–2019
model years
6
vehicle entries
Official summary
This Service Information Bulletin provides an important step currently missing from the Service Manual diagnostics for DTC B1572 â IMM CIRCUIT EXCEPT ANTENNA CIRCUITâ .
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.