We've had a couple malfunction. It's believed to be the radar misaligned and bouncing off something metal thinking you are about to have an instant collision. One was believed to be a sign the other a metal seam at a bridge. In those cases the brakes put them in the windshield. Others have said theirs has started beeping and went to a red screen showing a collision was about to happen, but luckily it did not brake in those cases. When you google the topic, it's big issue that is known with this system. Someone called Hugh Morris who said in the first batches there were 9-10 known cases of them braking. He called this a small number since we had 1300 of them. I beg to differ because only a small fraction were in service at time, or still are yet to be put in service. I see them as a safety issue. I plan to to cover my back my at least using a dash cam to try and help my case when it brakes or causes and accident and they say the truck says nothing happened. Here's a question...Is it only the tractor brakes that is applies? Because I played with one on cruise and that's what it feel like. Doesn't feel like trailer brakes are used by the system. If that's the case, it sure sounds safe. Sarcastic. I'm also finding and hearing issues with the brakes, where when you apply brakes with decent force the steering wheel wobbles like crazy. Something has changed in the steering or suspension so that you always feel heavy ot top heavy. The only thing good is the new seat.