The system operates only when the driver is in the vehicle or within operational range while the key is being carried.
Starting the Engine
NOTE
If the vehicle is started and the key is not in the vehicle, the vehicle will not restart after it is shut off and the ignition is switched to off.
With the advanced keyless function

Without the advanced keyless function

NOTE
The engine may not start if the key is placed in the following areas:
Transmitter
Key Suspend FunctionMazda 6 Owners Manual: Steering gear and linkage disassembly
Caution
Place copper plates, rag, or similar material in a vise, when
securing the mounting bracket portion of the steering gear.
Disassemble in the order indicated in the table.
.
Tie Rod Disassembly Note
1. Unclamp the washer.
2. Remove the tie rod.
Locknut (Adjusting Cover) D ...
Mazda 6 Owners Manual: Cruise Control (Some models)
With cruise control, you can set and automatically maintain any speed of more
than about 25 km/h (16 mph).
WARNING
Do not use the cruise control under the following conditions: Using
the cruise control under the following conditions is dangerous and could result
in loss of vehicle control.
...