GVN 53 Owner’s Manual 35chanGinG the SettinGSCustomizing the Audio SettingsAudio SettingsPress Menu three times. Then select General > Audio.Guidance—turn on the vocal guidance prompts. SelectSpeak Key only to hear the voice prompts only whenyou press the SpEAK key on the remote control.Attention tone—turn the attention tone on or off thatsounds before voice prompts.touch Screen tone—turn on or off the tone that soundseach time you select something on the screen.Keypress tone—turn on or off the tone that sounds eachtime you press a button on the remote.Speed Adjusted Volume—select how much the volumeincreases as your speed increases. Low increases yourvolume slightly; High increases your volume the most.Customizing Proximity AlertsPress Menu three times. Then select General >proximity Alerts to adjust the notifications for customPOIs you have loaded. See pages 43–44.Changing Your Time SettingsPress Menu three times. Then select General > time.time Zone—select your time zone.time Format—select 12- or 24-hour time format.Daylight Saving—select Auto, Yes, or No. The Autosetting automatically adjusts the time for daylight saving,based on your time zone.Selecting UnitsPress Menu three times. Then select General > Units.Change units of measure to Statute, Metric, or Custom.