Garmin GPSMAP 546 - Adjusting the Backlight

Device Overview
4 GPSMAP 400/500 Series Owner’s Manual

1. Press and release the  key.
2. Press left or right on the  to adjust the brightness.
Press the Power key repeatedly to cycle between maximum
backlight, minimum backlight, and your manual setting.
To allow the unit to automatically adjust the backlight based on ambient light,
select (automatic backlight is available only on the GPSMAP
536 and 546).

1. Press and release the  key.
2. Select .
3. Press left or right on the  to switch between modes.
To allow the unit to automatically adjust the backlight based on ambient light,
select .