Subaru Forester 2015–2019 — technical service bulletin
Bulletin 09-78-21 · NHTSA communication 10199934 · issued Jul 30, 2021
Technical service bulletin
communication type
Electrical System
component
2015–2019
model years
8
vehicle entries
Official summary
This bulletin announces the availability of Engine Control Module (ECM) reprograming files to correct DTC P015A and/or P015B.
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.