There used to be a feature in iOS that would display a notification on the lock screen the estimated commute time to home or work. I can see an estimate when I pull down the "Today" screen (from the lock screen), but I don't receive a notification like I used to. My notification settings have not changed; I allow Maps to notify me and to do so via the lock screen. Can anyone help me get the notification back? I'm running the latest version of iOS, in case it matters.