[peterbrown77]

I don't know about the rest of you, but my Valentine One has been going nuts the past couple of years. I couldn't figure it out - steady alerts for miles and miles, usually pointing behind me until it would just stop. I finally deduced the culprit - Audis. A6s, 7s, and Q7s seem to be the worst offenders. Their blind-spot detection system sets off the V1, but only when they're in front of you. As soon as you get even with them, it goes silent again.

I've read the BMWs and Mercs do the same, but haven't personally experienced it.

Another V1 anomaly is that Chevy Trailblazers' and GMC Envoy's high-mounted stop lights set off the Valentine's laser alarm if you're close enough.