Legally, you sure can.
Realistically, you may be super anxious and unhappy in mountain passes.
Not sure on the specs of your 2026. I like a TV with weigh exceeding the trailer, and excess towing capacity.
We towed our Elite home from Hohenwald to Florida with our Vilvo xc90. It was fine. Towing to Asheville, through Green River Gorge, we wete definitely in the slow lane, and wishing for more power. Volvo weighed around 6000 lbs, trailer probably 4900.
We've been happy towing it with a half ton. Is the 4 runner built on a truck chassis? Not familiar with them.