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. ...

Keys (with Retractable Type 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. ...

Safety
Side curtain-type airbags and seat-mounted side-impact airbags are optional in the Mazda6 i base sedan and standard in other models. Antilock brakes and traction control are standard. ...