That kind of behavior with BSM signals is totally normal. My R1 will filter out most Buicks no problem but sometimes they will punch through. Same thing with Acura/Honda. I would be more concerned with how it is responding to fixed sources though that can vary too.TBD if this is an issue or not, but 10 days into owning, my R3 today didn't false at all, with one exception, on my normal commute. What got my interest was I was behind a Buick which always triggers an alert with BSM, and I could see the indicator on the side mirror, so I know it was firing. OK, maybe it's the sensitivity/K filter doing it's job. I switch to Highway mode - nothing. As I'm passing it, nothing. Still in highway mode, I pass a Kroger that I have marked - nothing (not even the "Mute Mem" notification, so I know it didn't get the signal, assuming the marked locations are still blocked in highway mode - this I am not sure of). The only blip I got was a spot that is always hit or miss, it's actually in a neighborhood and about 50% of the time I get something, 50% I don't. So the inconsistency has me concerned/confused. One possibility is that perhaps the store was not open yet so the K band doors were not operating, but the Buick thing has me concerned.
The drive home will give more info. If I feel there is an issue, I will re-flash in recovery mode and reset before contacting Uniden.
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