Took our limited ascent in because it would surge or chug at low speeds going thru our neighborhood. Didn’t happen all the time. Wife drives it most of the time and she would complain about it and I would try to duplicate it and It happens once for me. Felt like a misfire or in between gears kinda thing even though it’s a CVT. Anyways took into the dealership and the ECM needed to be updated as the tech could not duplicate the issue. So if yours is doing that get it in for an update. Hasn’t done it since the update!!