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: Canceling Operation of Blind Spot Monitoring (BSM)
The Blind Spot Monitoring (BSM) system can be set to inoperable. When the Blind Spot Monitoring (BSM) is set to inoperable, the Blind Spot Monitoring (BSM) and Rear Cross Traffic Alert (RCTA) systems are turned off and the Blind Spot Monitoring (BSM) OFF indicator light in the instrument cluste ...

Mazda 6 Service Manual: Hold switch removal/installation
1. Disconnect the negative battery cable. 2. Remove the console. 3. Disconnect the connector and remove the HOLD switch terminals. (See SELECTOR LEVER DISASSEMBLY/ASSEMBLY.) 4. Remove the selector lever knob component. 5. Remove the HOLD switch. 6. Install the HOLD switch to selector lever k ...