Subaru Ascent 2018–2019 — technical service bulletin
Bulletin 15-235-18R · NHTSA communication 10161818 · issued May 8, 2019
Technical service bulletin
communication type
Equipment
component
2018–2019
model years
6
vehicle entries
Official summary
This bulletin announces availability of new audio system amplifiers to address the following operating concerns with the Harman Kardon Gen 3 infotainment system: Symptom 1: No audio output is heard but, the volume level displayed changes when turning the knob Symptom 2: Audio volume increases to maximum intermittently without turning the knob Symptom 3: A buzzing, screeching or crackling-type sound is heard coming through the speakers.
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.