My wife has the same steering complaint with her new 2019 Crosstrek, and I've noticed it too. Perhaps the pulses you are feeling is Eyesight performing lane keep assist.
The second sentence may explain the first. Subaru ships their cars with very high tyre pressures, typically around 45 psi. If they forgot to reduce them during the prep, which seems to happen a lot going by posts here, then it would account for the wandering. Maybe test drive it again after checking the pressures. They should be around 33 psi.I thought the steering was pretty numb, and the car wandered a lot on the freeway
....This was a brand new car off the truck and we were the first to drive it
My 2014 Forester felt like it floated when I brought it home on the freeway. Yes, the Dealer had not reduced the shipping high tire pressure but it was more than that. On my 2004 Forester the Ford dealer said that Subaru set alignment at "straight ahead"--no toe in and no toe out. He set it with a little Toe in and my 2004 ran like it should. I checked and it was the same for the 2014. I had the alignment set within Sub specs with a little toe in and it solved the float problem. I have made several trips from Florida to British Columbia (and the Kansas speed limit is 80) and it tracks like it should. I am still on my first tires at 60,000 without any unusual wear. In addition to getting tire pressure right, if your Subaru does not track well check the alignment.Welcome, @[U]Kernelpanic ![/U]
I don't think the steering is that great in my wire's 2015, but when it really seemed vague, it was because the dealer had overinflated the tires. Seemed like the vehicle was floating, and it was very noticeable.