2010 Lexus RX 450h User Guide - Page 395

397

3-4. Using the hands-free phone system (for mobile phones)

3

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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.

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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.

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Situations in which 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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