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dash or satnav

  1. 2013: cannot seem to dim the dash/SAT-NAV

    2010-2013 Mazda 3 & Skyactiv Audio & Electronics
    Per owner manual, I tried to push the knob on the left side of the gauges to activate the dimming feature and then rotate the knob clockwise and counterclockwise, but my gauges and SAT-NAV screen stay bright. Of course I had the headlamps ON. I then tried to press the knob again and repeat the...