4
nüvi 3400 Series Owner’s Manual
About Sleep Mode
Use sleep mode to conserve battery power
when your device is not in use. Sleep mode
uses very little power, and a battery charge lasts
for weeks when your device is in sleep mode.
Entering Sleep Mode
Press the
Power
key.
Exiting Sleep Mode
While the device is in sleep mode, press the
Power
key and double-tap .
Adjusting the Screen Brightness
1
Select
Settings
>
Display
>
Brightness
.
2
Use the slider bar to adjust the brightness.
Adjusting the Volume
1
Select
Volume
.
2
Select an option:
• Use the slider bar to adjust the volume.
• Select to mute the device.
• Select >
Audio Mixer
and use the
slider bars to adjust the volume for
navigation prompts, phone, and media.
About Automatic Volume
Automatic volume allows the device to adjust
the volume level based on the background noise
in the vehicle. Automatic volume control lowers
the volume of the device when background
noise is low and raises the volume level when
background noise increases.
