I have the same problem, with my 2018 Nissan Pathfinder that I just purchase on 2019. It's a use rental pathfinder sold it to us from CarMax for $47,000. I don't understand why is it breaking down when it's new. I was driving up the hill coming home from work. I press on the gas and there was no-power on the gas except my car was reducing it's speed to 45 mph, this was scary, my car is update on oil change and everything.
I did a research on my Nissan 2018 pathfinder and there is a recall on it. Does anyone else is dealing with the same issue.