Mazda 6 Service Manual: No.12 lack/loss of power-acceleration/cruise

No.11 engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges

No.13 knocking/pinging-acceleration/cruise

Other materials:

Mazda 6 Service Manual: To Increase Cruising Speed
Follow either of these procedures. To increase speed using cruise control switch Press the RESUME/ switch and hold it. Your vehicle will accelerate. Release the switch at the desired speed. Press the RESUME/ switch and release it immediately to adjust the preset speed. Multiple operations wil ...

Mazda 6 Service Manual: Operation
NOTE The engine may not start and security indicator light may illuminate or flash if the key is placed in an area where it is difficult for the system to detect the signal, such as on the dashboard or in the glove compartment. Move the key to a location within the signal range, switch ...