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: Intermittent concern troubleshooting
  Vibration Method 1. If malfunction occurs or becomes worse while driving on a rough road or when engine is vibrating, perform the steps below. Note There are several reasons vehicle or engine vibration could cause an electrical malfunction. Some of the things to check for are: ...

Mazda 6 Service Manual: How to Use Stitcher™ Radio
What is Stitcher™ Radio? Stitcher™*1 radio is an application which can be used to listen to Internet radio or stream podcasts. Recommended content is automatically selected by registering content which you put into your favorites, or by pressing the Like or Dislike button. For details on ...