All doors lock automatically when the lock side is pressed. They unlock when the unlock side is pressed.
Driver's door

Front passenger's door

To lock all the doors from an open front door, press the lock side of the door lock switch and then close the door.
NOTE
When locking the doors this way, be careful not to leave the key inside the vehicle.
Locking, Unlocking with Transmitter
Auto Lock/Unlock FunctionMazda 6 Owners Manual: Transaxle range (tr) switch removal/installation
1. Disconnect the negative battery cable.
2. Remove the air cleaner component. (See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION.)
Caution
Water or foreign objects entering the connector can cause a poor
connection or corrosion. Be sure not to drop water or foreign objects on the
connector w ...
Mazda 6 Owners Manual: Clutch unit removal/installation
1. Remove in the order indicated in the table.
2. Install in the reverse order oremoval.
Clutch Cover and Disc Removal Note
1. Install the SSTs.
2. Loosen each bolt one turn at a time in a crisscross pattern until spring
tension is released.
3. Remove the clutch cover and disc.
Flywhee ...