Before starting
To get the best recognition performance from Voice Recognition, observe the following:
● The interior of the vehicle should be as quiet as possible. Close the windows to eliminate the surrounding noises (traffic noise and vibration sounds, etc.), which may prevent the system from correctly recognizing the voice commands.
● Wait until the tone sounds before speaking a command.
● Speak in a natural conversational voice without pausing between words.
● If the air conditioner is set to “Auto”, the fan speed is automatically lowered so that your commands can be recognized more easily.

See also:
Troubleshooting guide
Verify the location of all Intelligent Keys that are
programmed for the vehicle. If another Intelligent
Key is in range or inside the vehicle, the vehicle
system may respond differently than expect ...
iPod * player operation with Navigation System (if so equipped)
...
Oil viscosity
The engine oil viscosity or thickness changes
with temperature. Because of this, it is important
to select the engine oil viscosity based on the
temperatures at which the vehicle will be
opera ...
