Volvo S60 2015–2017 — technical service bulletin
Bulletin TJ32170.2.1-2017 · NHTSA communication 10167912 · issued Apr 21, 2017
Technical service bulletin
communication type
Equipment
component
2015–2017
model years
20
vehicle entries
Official summary
This is a Technical Journal: Bluetooth phone volume too low or decreases by itself. If the Bluetooth phone volume is perceived as too low or decreases by itself. Please check the microphone functionality to confirm that the microphone cable is not damaged. Do not replace the IHU for this symptom as there is currently no permanent solution available.
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.