See also:

Keyless Entry System
This system remotely locks and unlocks the doors and the liftgate, and opens the power windows and the moonroof. It can also help you signal for attention. Press the buttons slowly and carefully. ...

Safety
Standard safety features include antilock brakes and side-impact airbags. Traction control and an electronic stability system are included in the optional Premium Package, which is available on Gr ...

Under the Hood
The 2.0-liter four-cylinder in the Mazda3 i has variable valve timing and develops 148 horsepower (144 hp in PZEV form). The Mazda3 s uses a 2.3-liter four-cylinder that pumps out 156 hp. A five-s ...