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

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Mazda 6 Service Manual: Warranties for Your Mazda
New Vehicle Limited Warranty Powertrain Limited Warranty Safety Restraint System Limited Warranty Anti-perforation Limited Warranty Federal Emission Control Warranty/California Emission Control Warranty Emission Defect Warranty Emission Performance Warranty Emission Control Warranty ...

Mazda 6 Service Manual: Generator removal/installation
Warning When the battery cables are connected, touching the vehicle body with generator terminal B will generate sparks. This can cause personal injury, fire, and damage to the electrical components. Always disconnect the battery negative cables before performing the following operation. ...