See also:

Keys
WARNING: Do not leave the key in your vehicle with children and keep them in a place where your children will not find or play with them: Leaving children in a vehicle with the key is dangerous. ...

Audio Set
Power/Volume/Sound Controls Power ON/OFF Turn the ignition switch to the ACC or ON position. Press the power/volume dial to turn the audio system on. Press the power/volume dial again to tur ...

Under the Hood
Mazda3 models now offer a choice of engines:   Standard  148-horsepower, 2.0-liter four-cylinder engine that teams with a five-speed manual or five-speed automatic transmission Opt ...