Subaru BRZ 2017–2019 — technical service bulletin
Bulletin 15-235-18 · NHTSA communication 10153181 · issued Nov 8, 2018
Technical service bulletin
communication type
Electrical System
component
2017–2019
model years
14
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.