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: Seat warmer switch inspection
1. Remove the seat warmer switch. 2. Inspect for continuity between the seat warmer switch terminals using an ohmmeter. If not as specified, replace the seat warmer switch. Drivers side Passengers side ...

Mazda 6 Service Manual: Multi-Information Display and INFO Switch (Some models)
    The multi-information display indicates the following information. Odometer Trip meter Engine coolant temperature gauge Fuel gauge Outside temperature Distance-to-empty Average fuel economy Current fuel economy Maintenance Monitor ...