Automatic Volume Adjustment - Lexus RX 350 Owner's Manual

Automatic volume adjustment

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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
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For numbers, say a combination of single digits from zero to nine, # (pound),
 (star), and + (plus).
Say the command correctly and clearly.
Situations that the system may not recognize your voice
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When driving on rough roads
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When driving at high speeds
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When air is blowing out of the vents onto the microphone
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When the air conditioning fan emits a loud noise
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Operations that cannot be performed while driving
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Operating the system with
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Registering a mobile phone to the system
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Changing the passkey
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P. 380
3-4. Using the hands-free phone system (for mobile phones)
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