I'm a new member and own a SX Prestige. On a recent trip, we experienced at least a couple of instances where the navigation map reverted to the home screen without warning. Has anyone experienced similar behavior while using the on-board nav with UVO? The route was not cancelled, but the map screen just changed on its own. Also, does anyone know if Kia will provide regular firmware updates to this system which is quite complex and how this would be accomplished?