Subaru Ascent 2019 — technical service bulletin
Bulletin 15-314-23R · NHTSA communication 11019948 · issued Jun 26, 2025
Technical service bulletin
communication type
Engine
component
2019
model years
8
vehicle entries
Official summary
This Bulletin is to inform you of the availability of the new auxiliary USB terminal and adapter cord designed to address cases of intermittent communication loss when using Apple CarPlay and/or Android Auto application connected via the auxiliary USB terminal port (2-port type) to Gen 3.1 Harman Head Unit.
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.