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: Sunroof motor inspection
Motor 1. Remove the sunroof motor. 2. Apply battery positive voltage to the sunroof motor terminals and inspect the operation of the sunroof motor. If not as specified, replace the sunroof motor. Limit Switch 1. Remove the headliner. (See HEADLINER REMOVAL/INSTALLATION.) 2. Verify t ...

Mazda 6 Service Manual: To Resume Cruising Speed at More Than 25 km/h (16 mph)
If some other method besides the OFF/ CANCEL switch was used to cancel cruising speed (such as applying the brake pedal) and the system is still activated, the most recent set speed will automatically resume when the RESUME/ switch is pressed. If vehicle speed is below 25 km/h (16 mph), incre ...