Subaru Solterra 2023–2026 — technical service bulletin
Bulletin 15-334-25 · NHTSA communication 11027086 · issued Dec 12, 2025
Technical service bulletin
communication type
Electrical System
component
2023–2026
model years
4
vehicle entries
Official summary
This Bulletin outlines the diagnostic procedures to be followed when identifying dark current/parasitic draw concerns caused by third-party mobile applications on Solterra vehicles.
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.