Subaru Legacy 2023–2024 — technical service bulletin
Bulletin SubaruNet Announcement (W · NHTSA communication 11029334 · issued Feb 10, 2026
Technical service bulletin
communication type
Electrical System
component
2023–2024
model years
4
vehicle entries
Official summary
This announcement provides information for the WRB-26 DCM replacement and CCU initialization service campaign - completion and parts ordering.
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.