The red and white light on my reear view mirror is coming on for no apparent reason. I do not subscribe to this service. Has anybody out there experienced this problem? OnStar said I had to sign up for them to tell me if they were getting a signal. Can you believe that? Join just to find out why a little redlight won't come on! I guess it's a dealer problem. I think we may just pull the fuse if it doesn't affect the mirror. A cell phone is cheaper for me. Any help would be appreciated.