I recently bought a 2018 Toyota Highlander. The Steering Assist Function feature of the Lane Departure Alert does not appear to be working properly when drifting to the left as the car continues to drift to the left without any noticeable vehicle assist. There is some small Steering Assist if I drift to the right. Lane Departure Alert is definitely turned on. Steering Assist is definitely turned on. I have tried all sensitivities. I realize that the Steering Assist feature is only intended to work when the vehicle is traveling above a certain speed. I am assuming that 40 mph and above is sufficient speed. The car beeps immediately upon lane departure in both left side and right side directions. I am assuming that Steering Assist should kick in around the time that the Lane Departure Alert beeps. It doesn't. I always have to manually correct on the left side, sometimes on the right side. I have driven several other vehicle brands with steering assist and have found all of their steering assists to be both immediate and forceful. Any ideas?