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: Driving Position Memory (Some models)
The desired driving position can be called up after programming the position. The following driving positions can be programmed. Driver’s seat position (seat slide, height adjustment, front edge of seat bottom, seat recline) Active driving display (display position, brightness level, dis ...

Mazda 6 Service Manual: Dashboard Illumination
(Without auto-light control) When the position lights are turned on with the ignition switched ON, the brightness of the dashboard illumination is dimmed. (With auto-light control) When the position lights are turned on with the ignition switched ON, the brightness of the dashboard illuminati ...