After 18 months I discovered another feature of the car I did not know it had. I must have let go of the steering wheel for I guess 3 sec and a notice came up to grab hold of the steering wheel. I was surprised and tried it again and this time a warning came with the notice to grab hold of the steering wheel. I guess another safety feature.
Yep! Scared Hell out of me...as it should have and is supposed to do. A GOOD feature, for sure! Thanks, Toyota! 73 and All the Best! DE W8LV Bill
My collision avoidance system saved me today. I was only going about 30mph when I decided to move into the left lane on a city street. When looking in my side mirror checking for traffic, the collision avoidance system went off and my dash lite up like a Christmas tree with loud alarms. That made me look forward quicker than I would have otherwise. Traffic was stopped in front of me and I made a NASCAR lane change like no other. I think I missed the left rear of the car in front of me by less than a foot. The car handle great during my maneuver. Sure love my Prime Advanced and all its features.
Weird. It takes about 30 seconds on a straight road for mine to alert me to hold the steering wheel. It's hard to find a road that's long, straight, and empty enough with no wind if I want to intentionally trigger it. I've also seen the alert two or three times when I actually am holding the wheel, which is annoying.
Didn't know about the feature. I have not seen the warning yet, but I don't know if I have straight enough road to test that feature.
Today (12-12-18) I had a message not seen before. Said the front windshield camera could not see and to clean the window. I had defrost on and it cleared up quickly. So the camera will tell you when it can't see.
Mine goes off almost every day. I actually have a CURVED piece of road that the lane keeping assists seems to track perfectly (go figure, the one spot where it actually works better than my GEN III). It works so good that I'm actually holding the steering wheel and turning at the exact rate that the lane holding is steering at. It's newly paved, perfectly flat and a very large arc so once you get into the curve there's no feedback required, so even though I'm holding the steering wheel it triggers all the time. The GEN III was so much better at lane keeping (I know the IV isn't lane keeping, but it could be), that you *could* take your hand off the steering wheel for a bit... the GEN IV I wouldn't trust at all.