Mazda 6 Service Manual: No.20 noise occurs at idle when vehicle is stopped in all positions/ranges

No.19 excessive shift shock on torque converter clutch (tcc)

No.21 noise occurs at idle when vehicle is stopped in d, s, l ranges, or in r position

Other materials:

Mazda 6 Service Manual: Warning Indication/Warning Lights
These lights turn on or flash to notify the user of the system operation status or a system malfunction. *1 The light turns on when the ignition is switched on for an operation check, and turns off a few seconds later or when the engine is started. If the light does not turn on or remai ...

Mazda 6 Service Manual: Power Window Lock Switch
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 ...