Lexus OM48A84U Owner's Manual page 357

D
Voice volume setting
1. Select "Voice Volume".
– +
2. Select " " or " " to adjust the voice
volume.
3. Select "OK".
D
Ring volume setting
1. Select "Ring Volume".
– +
2. Select " " or " " to adjust the ring
volume.
3. Select "OK".
D
Initializing the settings
You can initialize the settings.
1. Select "Default".
2. Select "Yes".
SETUP
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