nüvi 610/660/670 Owner’s ManualcUsToMizinG The nüvi4. After you receive the 25-character code, touch Next on the nüvi, enter thecode, and touch Done.You must obtain a new code each time you renew your service. If you own multipleFM traffic receivers, you must obtain a new subscription code for each receiver.For more information about using a traffic receiver, go to page 31.Changing the Proximity Points SettingsTo change the proximity points settings, on the Menu page, touch Settings >Proximity Points. Only those items that you have loaded onto your nüvi can bechanged with these settings.Alerts—touch Change to turn on or off the alerts when you approach custom POIsor safety cameras. Touch Audio to set the type of audio notification that you want tohear, and touch oK.tourGuide—set how you want the audio for Garmin TourGuide™ to be activated.