Subaru Ascent 2023 — technical service bulletin
Bulletin 15-305-22R · NHTSA communication 10243364 · issued Sep 5, 2023
Technical service bulletin
communication type
Equipment
component
2023
model years
3
vehicle entries
Official summary
The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4.5 Denso CP1.5 Audio and Navigation head units utilized in 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.