Subaru Ascent 2023 — technical service bulletin
Bulletin 15-305-22R · NHTSA communication 10235314 · issued Apr 26, 2023
Technical service bulletin
communication type
Equipment
component
2023
model years
3
vehicle entries
Official summary
Reprogramming File Availability for Optimization of Gen 4.5 Denso CP1.5 Infotainment Systems
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.