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: Vehicle Loading
WARNING Do not tow a trailer with this vehicle: Towing a trailer with this vehicle is dangerous because it has not been designed to tow a trailer and doing so will affect the drive system which could result in vehicle damage. This section will guide you in the proper loading of your vehicle, t ...

Mazda 6 Service Manual: Combine sensor initialization procedure
1. Set the SST (WDS or equivalent) to the DLC-2 2. Access the active command mode and select the YAWRATE, then follow the indication on the monitor. 3. Select the LATACCEL and follow the indication on the monitor. STEERING ANGLE SENSOR REMOVAL/INSTALLATION (See COMBINATION SWITCH DISASSEMBLY ...