- Normal operation

 - When using a voice command

For numbers, say a combination of single digits from zero to nine.

Say the command correctly and clearly

 - Situations that the system may not recognize your voice

• When driving on rough roads

• When driving at high speeds

• When air is blowing out of the vents onto the microphone

• When the air conditioning fan emits a loud noise

 - Operations that cannot be performed while driving

• Operating the system with the “TUNE/SEL” knob

• Registering a portable player to the system

 - Changing the passkey