Subaru Legacy 2015–2016 — technical service bulletin
Bulletin 11-176-17 · NHTSA communication 10125883 · issued Nov 16, 2017
Technical service bulletin
communication type
Electrical System
component
2015–2016
model years
4
vehicle entries
Official summary
This bulletin announces availability of reprogramming files to optimize the ECM for control of battery charging functions. Depending on vehicle use conditions, the battery state of charge value may differ slightly from the actual value. The new logic will enhance charging system control and result in improved battery life.
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.