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5-4. Using the audio system
■ Automatic volume adjustment
When vehicle speed reaches 50 mph (80 km/h) or more, the volume automatically
increases. The volume returns to the previous volume setting when vehicle speed
drops to 43 mph (70 km/h) or less.
■ When using a voice command
For numbers, say a combination of single digits from zero to nine, # (pound),
(star), and + (plus).
Say the command correctly and clearly.
■ Situations in which 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
● Registering a cellular phone to the system
■ Changing the passkey
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