Lexus GS430 User Manual page 273

To delete the memory—
D To delete the telephone number in the phone book.
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Touch the "Delete" switch of "Phone Book".
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Select the desired number from the list.
If you want to delete all the phone numbers in phone book,
touch the "Delete All" switch.
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Touch "YES" switch.
When you touch "NO", the previous screen returns.
TOUCH SCREEN
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