Mazda 6 Service Manual: No.13 no kickdown

No.12 torque converter clutch (tcc) non-operation

No.14 engine flares up or slips when upshifting or downshifting

Other materials:

Mazda 6 Service Manual: Indication on Display
The Distance Recognition Support System (DRSS) operation status is indicated in the active driving display or multi-information display. Regarding malfunctions, check the vehicle conditions or have it inspected by an Authorized Mazda Dealer according to the content of the displayed message. R ...

Mazda 6 Service Manual: No. 2 all on-board diagnostic functions inoperative
When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while doing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, check to make sure connectors, terminals and wir ...