Subaru Ascent 2023–2025 — technical service bulletin
Bulletin OTA Software Update (1003 · NHTSA communication 11023518 · issued Sep 29, 2025
Technical service bulletin
communication type
Electrical System
component
2023–2025
model years
15
vehicle entries
Official summary
This OTA is an software update to provide audio improvements for the models listed.
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.