Lexus OM53A24U, Owner'S Manual

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3-4. Using the hands-free phone system (for mobile phones)
■
Automatic volume adjustment
When vehicle speed reaches 50 mph (80 km/h) or more, the volume automati-
cally 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
, and
●
Registering a mobile phone to the system
■
Changing the passkey

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