This feature prevents all power windows from operating, except the driver's power window. Keep this switch in the locked position while children are in the vehicle.
Locked position (button depressed):
Only the driver's power window can be operated.
Unlocked position (button not depressed):
All power windows on each door can be operated.

NOTE
When the power window lock switch is in the locked position, the light on each power window switch, except for the driver's power window switch, turns off. The light may be difficult to see depending on the surrounding brightness.
Operating the Power Windows
Moonroof (Some models)Mazda 6 Owners Manual: Settings
NOTE
Depending on the grade and specification, the screen display may differ.
Select the icon on the home
screen and display the Settings screen.
Switch the tab and select the setting item you want to change.
You can customize settings in the setup display as follows:
...
Mazda 6 Owners Manual: Power brake unit inspection
Warning
The following inspection methods are the simple inspection methods
to judge the function of power brake.
If there is malfunction in power brake unit, replace the power
brake unit as a component.
Power Brake Unit Function Check (Simple Method)
Step 1
1. With the engine stoppe ...