See also:

Emission Control System
Your vehicle is equipped with an emission control system (the catalytic converter is part of this system) that enables your vehicle to comply with existing exhaust emissions requirements. WARNING ...

Lighting Control
Headlights To turn on the lights, turn the headlight switch on the end of the control lever. NOTE: To prevent discharging the battery, don't leave the lights on while the engine is off unless ...

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 ...