I live in a rural area which may cause part of the problem.. The problem, the car does not see some speed signs and seems to post an arbitrary speed limit. Then later will post the speed limit, I think, according to the map software which is wrong a lot here. Traveling down FM116, here the speed limit is 75 (Texas 2 lane freeway, lol), and the car shows 55 even after we have passed 4 speed signs. Then about 10 miles later jumps to 70. This also happens on other highways like 35, 190 and 183. This is frustrating because I have to keep my foot pressed on the gas and it disables adaptive automatic breaking until I get back to 5 mph over the speed limit. At times it seems to see the speed sign for frontage roads but still does not see signs further down the road. The other problem is that when it does see a speed limit sign, it sets the speed to 5 mph over. I can see no automatic way to change. I just reset to max speed to the limit manually. Not a huge problem but a nuisance. Here going 5mph over gets you a $200+ ticket including costs.