What are the reasons for the Mazda 3 not responding when starting?

[JadeFitz]

The Mazda 3 may not respond when starting due to the following reasons: 1. Check the battery charge, fuel pressure, and fuses in the fuse box. Issues with the starter and its wiring, especially the starter's solenoid switch, and then the ignition switch. 2. Observe if the dashboard lights dim when starting. If they dim, the battery may be dead; if there's no change, the starter might be faulty, or the ignition switch below the key slot could be defective. Below are the correct methods to start the Mazda 3: 1. Without pressing the brake, press the start button twice or use the mechanical key to power on. Wait for the instrument panel to light up and for the electrical system self-check to complete (airbag light turns off), then press the brake to start the car. 2. When shifting gears, you can directly move from P to D, but avoid pausing at R. The car can be started in either P or N gear.