I took a picture of where it got stuck. It gets stuck in the middle of the floor with no interference. Every few minutes I have to find him because he's leaving. This is the second. DO NOT buy this junk. Now I'm stuck with this $200 junk. My first one worked much better than this one, but after a few months it just stopped working. So they replaced it with this one. This one doesn't work at all. Now that I had a replacement for the first one, I'm stuck on this bullshit. Don't buy this car. Costco has a good deal on the best model I've seen recently. At least at Costco, the return policy is better. If something is rubbish, don't leave it.