The driver's air bag is mounted in the steering wheel.
When air bag crash sensors detect a frontal impact of greater than moderate force, the driver's air bag inflates quickly helping to reduce injury mainly to the driver's head or chest caused by directly hitting the steering wheel. For more details about air bag deployment, refer to "SRS Air Bag Deployment Criteria".
(With Front Passenger Occupant Classification System)
The driver's dual-stage air bag controls air bag inflation in two energy stages. During an impact of moderate severity, the driver's air bag deploys with lesser energy, whereas during more severe impacts, it deploys with more energy.

Front Seat Belt Pretensioners
Front Passenger Air BagMazda 6 Owners Manual: Making a Call
Phonebook Usage
Telephone calls can be made by saying the contact name in the downloaded phonebook
or the name of a person whose phone number has been registered in the Bluetooth®
Hands-Free. Refer to Import contact (Download Phonebook).
1. Press the talk button.
2. Wait for the beep sound.
...
Mazda 6 Owners Manual: Antilock Brake System (ABS)
The ABS control unit continuously monitors the speed of each wheel. If one wheel
is about to lock up, the ABS responds by automatically releasing and reapplying
that wheel's brake.
The driver will feel a slight vibration in the brake pedal and may hear a chattering
noise from the brake system ...