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: Rear View Monitor
The rear view monitor provides visual images of the rear of the vehicle when reversing. WARNING Always drive carefully confirming the safety of the rear and the surrounding conditions by looking directly with your eyes: Reversing the vehicle by only looking at the screen is dangerous as it m ...

Mazda 6 Service Manual: Manually Shifting Up
You can shift gears up by operating the selector lever or the steering shift switches (some models). M1 → M2 → M3 → M4 → M5 → M6 Using selector lever To shift up to a higher gear, tap the selector lever back (+) once. Using steering shift switch (some models) To ...