Garmin nuvi 3590LT - Manual (Page 10)

4 nüvi 3500 Series Owner’s Manual
2 Select Off.
Resetting the Device
You can reset your device if it stops functioning
Hold the Power key for 10 seconds.
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 Master 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
On devices with hands-free calling, automatic
volume allows the device to adjust the volume
level based on the background noise in the
vehicle. See page 32
Automatic volume control lowers the volume of
the device when background noise is low and
raises the volume level when background noise
increases.