I am not sure if there is a problem but my rear detection is way better than my front detection. For example two times when I was at a 4 way intersection and i was making a left turn and the cop was stopped at the light. My front detection went off as I was starting to make the turn but then as I went forward I picked up the cop for a good mile and a half on my rear detection. Also sometimes when I am waiting to pull out onto a road a a cop passes me running constant on my v1 will pick it up but, when he is passing me my V1 is only at half ramp. Is this normal or is there something wrong.