Lexus 2013 GS 350 Owner's Manual page 513

5-4. Using the hands-free phone system (for cellular phone)
Select the device to be edited.
4
Select "Device Name".
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Input the device name, and
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select "OK".
Confirm the device name and select "OK".
7
GS350_U (OM30C34U)
I n f o r ma t i o n P r o v i d e d b y :
5