Hi all! I have a 2015 Cherokee trailhawk 4cyl 70,000 miles. We also bought the mopar extended warranty when we bought the car. We recently took our car in due to a “service electronic braking system” message. This message would go away once restarting the vehicle but would pop back up while driving later. I took it in and they fixed it eventually after spending close to $400 for replacing a vacuum and brake booster. Now I am get the “4wd system temporarily out of service” message. What the hell is wrong with my car? I so sick of spending hours at the dealership.