Toyota 2009 Tundra, Manual, Page: 367 / 663

371
3-4. Using the hands-free phone system (for cellular phone)
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n Automatic adjustment of volume
When vehicle speed is 50 mph (80 km/h) or more, the volume automatically
increases. The volume returns to the previous volume setting when vehicle
speed drops to 43 mph (70 km/h) or less.
n
When using a voice command
l
For numbers, speak a combination of single digits from zero to nine, #
(pound),
∗
(star), and + (plus).
l
Speak the command correctly and clearly.
n
The system may not recognize your voice in the following situations:
l
When driving on a rough road
l
When driving at high speeds
l
When air is blowing out of the vents onto the microphone
l
When the air conditioning fan emits a loud noise
n
The following cannot be performed while driving:
l
Operating the system with
l Registering a cellular phone to the system
n Changing the passkey
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