Lexus CT200h Owner's Manual page 424

3-4. Using the hands-free phone system (for cellular phones)
Locking or unlocking the phone book
Select "Phonebook Lock (Phbk Lock)" or "Phonebook Unlock
STEP 1
(Phbk Unlock)" using a voice command or
Input the PIN by either of the following methods and select
STEP 2
"Confirm" using a voice command or
a. Press the talk switch and say the registered PIN.
b. Input a new PIN using
Setting voice guidance volume
Select "Guidance Vol" using
STEP 1
Change the voice guidance volume.
STEP 2
To decrease the volume: Turn
To increase the volume: Turn
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CT200h_U (OM76040U)
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counterclockwise.
clockwise.