Garmin GPS 12XL Owner's Manual (Software Version 2.00-3.62) - Page 18

REFERENCE Battery Level, Backlighting & Emergency Erase When backlighting is on, a bulb icon will appear on the Satellite Page. Use the icon to determine if backlighting is turned on during daylight hours. Upon activating the Emergency Erase Function, you will be asked to confirm your decision. Battery Level Indicator The Satellite Page also features a battery level indi- cator, located to the left of the sky view, which displays the strength of the unit's batteries. The battery indicator will not appear if the receiver is using external power. The battery level indicator is calibrated for ! alkaline batteries. Voltage differences will dis- play Ni-Cad and lithium batteries differently . No other receiver functions are affected. The GPS 12XL features an internal lithium battery that will maintain the unit's memory when the receiver is not running off batteries or external power. Backlighting Bulb Icon The GPS 12XL features full-screen backlighting. Activate the backlight by pressing the B key briefly. Note: A bulb icon will appear on the Satellite Page when backlighting is turned on. Emergency Erase Function You may erase the GPS 12XL's memory in four quick steps. This will cause all stored data to be deleted, including: routes, waypoints, and the track log. To erase all stored data: 1. Ensure that the GPS 12XL is turned off. 2. While holding down the Mkey, hold down the B key to turn the unit on. A warning message will appear with "Yes?" highlighted, and ask you to confirm your selection. 3. If you do not wish to erase all stored data, press R and E to cancel the emergency erase. 4. If you do wish to complete the emergency erase, press E to confirm. 14