Mazda CX-3 2017–2019 — technical service bulletin
Bulletin 09-012-20-3681 · NHTSA communication 10171849 · issued Feb 27, 2020
Technical service bulletin
communication type
Equipment
component
2017–2019
model years
2
vehicle entries
Official summary
Some customers may complain about a high frequency noise (like a mosquito sound) while the active driving display is in the flip-up position. The noise may be coming from the capacitor inside the active driving display which vibrates according to the display control frequency. The circuit board resonates with it resulting in an audible noise. To eliminate this concern, the active driving display has been modified to use a higher frequency for the display control.
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.