2020 Aviator Grand Touring Reserve. I drove this home about 700 miles over two days. Followed and older style road through the mountains of Colorado near a number of ski resorts. Lots of winding roads and some braking, on the flat after I got off the mountain, the power steering seemed stiff more effort to turn the steering wheel.
It was also wandering around between the two sides of the road with the traffic minder with it turned on or off. It kept wandering out of the lanes on one side or the other and the lane minder function would report as "Cancelled" on the HUD. The steering was very sensitive and turning effort on the steering wheel was high. All you had to do was "touch" the steering wheel and it'd go the other side of the lane and not stop.
Now an old mechanic type would describe the handling as the toe in needed to be set tighter on the front end alignment. It also exhibited the wandering with the lane minder turned off.
It was worse the second day as I was mostly on Freeways and running about 15 MPH faster through similar terrain. The problem got worse descending those mountains at Freeway speeds the thing just would not stay where you put it and minor course corrections at the steering wheel resulted in too much movement of the front end steering. It was VERY annoying as well as tiring chasing the damn thing down the road trying to keep it in the center, or somewhere close, of the lane.
Took it to the dealer and they said that they were not aware of any issues and wanted to keep it for two days. I said okay but I need something to drive and please call me before they came over thinking that they were going to pick it up; they didn't.
Then while researching the issue, there is a note in the owner manual that because the steering is electric, the motor may overheat and cause these EXACT same conditions when driving in the type of terrain that I'd been driving. The ambient temperatures were either slightly below or above freezing. The solution according to the manual? Pull over shut it off and let the steering mechanism "cool off". What kind of BullShit is this from an eighty thousand plus car?
Suggest the Engineers fix there little problem with some baffling, cooling lines or whatever, the current situation is not acceptable.