Lexus GS430 User Manual page 270

TOUCH SCREEN
To change the phone book—
The system has two phone books. You can select either
phone book.
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Touch the "Phone Book 1" or "Phone Book 2" switch.
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To transfer the telephone number—
You can transfer the telephone numbers in your Bluetooth
phone to the system. Up to 500 numbers can be registered
in one phone book.
Transfer it while the engine is running.
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1. Touch the "Start Transfer" switch to display "Data
Transfer" screen.