2010 Lexus IS 250 Owners Manual - Page 398

318

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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