I am a new iPhone4 user and recently drove from NJ to MI. During our trip my iPhone4 randomly chimed to warn me of something. The chime sounded like a church bell going off. I checked my settings and can't seem to find what this is. It did appear to being going off while we driving thru remote areas such as along Route 80 heading west thru PA.
Any help would be appreciated.
Thanks in advance for your time and help