For everyone wondering about the blank screen problem, it's actually a feature. Holding down the Mute/Power button for 2 seconds will turn off the screen. Doing the same again will turn it back on. This I can confirm is true of 2021 CX-30's. Hold down the mute button for at least 10 to 20 seconds, then release. This is the designated refresh button for Mazda cars. It causes the Mazda Connect to refresh and may solve the issue by bringing back the display. This should be the second way to troubleshoot, after restarting your car, if the black screen persists. I poked around the various settings for the Nav Map, found the lighting options for either daytime or nightime, but just now, really the first night driving I've done since installing the map sd card, the map stayed bright. The digital clock in the corner displayed 9:02pm, so the car 'should' have known it was dark. The touch screen of your Mazda CX 9 switches on and off for no cause: In this scenario it is highly likely that you are the victim of a short circuit. Check the state of your fuses and connectors, if you can't locate anything, take your motor vehicle to a motor vehicle electrician who can fix the issue. Welcome back everyone to PC Mazda Reviews. I wanted to change pace on things a bit today and cover a feature that is going to be covered quickly in a fair n If your Mazda's screen is not working, the first thing you can try is rebooting the infotainment system. To do this, simply turn off your car and let it sit for a few minutes. Then, turn the car back on to see if the screen starts functioning properly. If the active driving display does not operate, switch the ignition off and then restart the engine. If the active driving display does not operate even with the engine restarted, have the vehicle inspected at an expert repairer (we recommend an Authorised Mazda Repairer). Backup camera and Nav would not work because the screen was blank. Sometimes when I drove for 20mins it will turn itself on magically, but most of the time I would get stucked with a blank screen the whole trip and even the trips after. Tried changing every setting, reset to factory settings, upgraded the maps through Mazda tools. Nothing would Definitely sounds like a trip to the dealer is in your future. Tommieremix 167 posts · Joined 2022 #3 · Aug 30, 2022 Now that's the truth! Also polarized glasses make the HUD almost impossible to see 😅however that does not seem to be your issue. Best of luck & keep us updated 💋💋 Del3wa Discussion starter 2 posts · Joined 2022 #4 · Sep 23, 2022 Switch the ignition off and close all of the doors and the liftgate. Open the driver's door. Within 30 seconds of opening the driver's door, press and hold the LOCK button on the key for 5 seconds or longer. The beep sound activates at the currently set volume. d7vS.