Lexus LS500 - Page 239

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5-2. Mobile Assistant operation
LS500_LS500h_Navi_OM50F66U_(U)
5
Voice command system
 The volume of the Mobile Assistant
can be adjusted using the
“PWR/VOL” knob or steering
wheel volume control switches. The
Mobile Assistant and phone call vol-
umes are synchronized.
● While a phone call is active, the Mobile
Assistant cannot be used.
● If using the navigation feature of the cellu-
lar phone, ensure the active audio source
is Bluetooth
®
audio or iPod in order to
hear turn by turn direction prompts.
● Wait for the listening beeps before using
the Mobile Assistant.
● The Mobile Assistant may not recognize
commands in the following situations:
• Spoken too quickly.
• Spoken at a low or high volume.
• The roof or windows are open.
• Passengers are talking while the Mobile
Assistant is being used.
• The fan speed of the air conditioning sys-
tem is set at high.
• The air conditioning vents are turned
toward the microphone.