Lexus 2013 GS 350 Owner's Manual page 305

Voice volume
■
The voice guidance volume can be adjusted or switched off.
Select "Voice" on the "Setup" screen.
1
Select the desired level.
2
Vehicle with a navigation system:
If voice guidance is not needed,
select "Off" to disable the feature.
Select "Save".
3
Vehicle settings
Select "Vehicle" on the "Setup" screen.
Maintenance information set-
1
tings
Refer to "Navigation System Owner' s
Manual".
Vehicle customization
2
Detailed information:
Setting up intuitive parking assist
3
Detailed information:
GS350_U (OM30C34U)
5-1. Remote Touch screen
P. 779
P. 246
I n f o r ma t i o n P r o v i d e d b y :
5