GMC Sierra Instruction Manual page 169

168 Instruments and Controls
Select Slow, Medium, or Fast.
Voice
Select and the following may
display:
Prompt Length
Audio Feedback Speed
Prompt Length
This feature adjusts the voice
prompt length.
Select Short or Long.
Audio Feedback Speed
This feature adjusts the audio
feedback speed.
Select Slow, Medium, or Fast.
Display
Select and the following may
display:
Calibrate Touchscreen
Turn Display Off
Calibrate Touchscreen
Select to calibrate the touchscreen,
then follow the prompts.
Turn Display Off
Select to turn the display off. Press
anywhere on the display area or any
faceplate button to turn the
display on.
Rear Camera
Select and the following may
display:
Guidance Lines
Rear Park Assist Symbols
Guidance Lines
Select to turn Off or On. See
Assistance Systems for Parking or
Backing 0 308.
Rear Park Assist Symbols
Select to turn Off or On. See
Assistance Systems for Parking or
Backing 0 308.
Return to Factory Settings
Select and the following may
display:
Restore Vehicle Settings
Clear All Private Data
Restore Radio Settings
I n f o r ma t i o n P r o v i d e d b y :
Restore Vehicle Settings
This allows selection of restoring
vehicle settings.
Select Restore or Cancel.
Clear All Private Data
This allows selection to clear all
private information from the vehicle.
Select Delete or Cancel.
Restore Radio Settings
This allows selection to restore
radio settings.
Select Restore or Cancel.
Software Information
Select to view the infotainment
system current software information.