3-44Garmin G500 Pilot’s Guide 190-01102-02 Rev. EForewordSec 1SystemSec 2PFDSec 3MFDSec 4HazardAvoidanceSec 5AdditionalFeaturesSec 6Annun.& AlertsSec 7SymbolsSec 8GlossaryAppendix AAppendix BIndexthe Page Menu options or soft keys. The “Restore Unit Defaults” menu selectionand the DFLT UNIT soft key restores the default MFD Display and SystemDisplay Units settings. The “Restore Airspeed Defaults” menu selection or DFLTSPD soft key restores the default PFD Airspeeds settings.The RA TEST soft key activates the Radar Altimeter test mode. See the RadioAltimeter section in Section 2 for details.NOTE: Not all Radar Altimeters have the TEST function.1) While viewing the Aux mode System Setup page, press the MENU key.Figure 3-67 Aux Mode System Setup Page Menu2) Turn the large or small MFD knobs to highlight the desired selection and thenpress ENT.3.4.1.1 Display BrightnessDisplay brightness mode may be set to manual or automatic. The automaticmode will set the display brightness based on the ambient light. The manualmode allows the setting of display brightness between 0 and 100%.1) Turn the large MFD knob to reach the AUX page group. Press the small MFDknob to activate the cursor.2) The Level will be highlighted. Turn the small MFD knob to select the DisplayBrightness Level and then press ENT.Figure 3-68 Aux Mode Display Brightness Level Selection3) If the Level was changed, Manual will be selected. Press the cursor to save thesettings. If you press ENT the Mode setting will be highlighted.4) With the Mode value highlighted, turn the small MFD knob to select Auto orManual and then press ENT.