Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Mazda 3 BaseFACTORY OEM SERVICE PROCEDURE
Android Auto™
- The USB port/SD card slot hub sends (1) the digital data (audio information/Android™ screen information) of the Android™ connected to the USB port to the CMU.
- From the received digital data, the CMU converts the screen information to a GMSL signal and sends (2) it to the center display.
- The center display indicates (3) the screen information based on the GMSL signal received from the CMU. In addition, the CMU sends (3) the audio signal to the speakers and the speakers output (3) the audio based on the received audio signal.NOTE:
- Android Auto™ can be used only when Android™ is connected to USB1 (USB port indicated by 1 mark) of the USB port/SD card slot hub.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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