When I go up hill my car dsn’t Want to automatically shift, my rpms start revving, and the car won’t go over 50 mph. It’s been an on going issue since I purchased the vehicle in 2020. Ive taken it to nissan on more than a couple occasions and the assured me there was no issues. Now as of last week after I brake my car loses driving power but dsn’t lose actual power. Now my check engine light is on.