Lexus LS460 2011 Owner's Manual page 590

3-5. Using the hands-free system (for cellular phone)
 Deleting the speed dial
STEP 1
Display the "Phonebook settings" screen. (P. 547)
STEP 2
Touch "Manage speed dials" on the "Phonebook settings"
screen.
STEP 3
Touch "Delete speed dials" on the "Speed dials" screen.
STEP 4
STEP 5
Touch "Delete". A confirmation message will be displayed.
If everything is correct, touch "Yes".
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LS460_EE
Choose the data to delete.
You can select multiple data and
delete them at the same time.
To delete all data, touch "Select
all".