See also:

Keys (without Advanced Key)
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. ...

Trailer Towing
The Mazda3 is not designed for towing. Never tow a trailer with your Mazda3. ...

Overloading
WARNING. Be careful not to overload your vehicle: The gross axle weight rating (GAWR) and the gross vehicle weight rating (GVWR) of your vehicle are on the Motor Vehicle Safety Standard Label on ...