I have the same problem with a recently purchased 2017 aurion atx, 45k's My local mechanic (who I've been using for 30+ years) said that this was not normal. So, down to the local Toyota dealer, the car was put up on a hoist and inspected. The problem was felt in the left hand steering arm. The service manager was taken for a drive and of course problem didn't happen. He said that he would look at other 2017 models and see if they had a similar problem. So far, no phone calls. Must not be too many 2017 aurions passing through their yard. Apart from the auto changing down too early and the cruise control wanting to accelerate above the setting after going up a hill I'm very happy with probably the last car I'll be buying.