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: Lane Departure Warning
If the system determines that the vehicle may deviate from its lane, the lane departure warning (beep sound, rumble sound*1, or steering wheel vibration) is activated and the direction in which the system determines that the vehicle may deviate is indicated in the multi-information display and ...

Mazda 6 Service Manual: Selector lever removal/installation
1. Disconnect the negative battery cable. 2. Remove battery and battery tray. 3. Remove the air cleaner compornent. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.) 4. Remove the console. 5. Remove the dashboard compleat. (See DASHBOARD REMOVAL/INSTALLATION.) 6. Remove the SAS control module. (S ...