Front Suspension Control Arm problems of the 2016 Jeep Cherokee

The rpm's on this transmission in this vehicle go up very high but the transmission does not shift into gear. The vehicle sputters and slows on the open road. The engine does run on all cylinders. The engine has no power. This creates a safety risk on a highway. Also the differential locks up when you have to hit the brakes and three rear of the car locks up and skids left of center. Party's of the suspension have broken for no apparent reason. The left rear control arm broke for no apparent reason. I have been informed by a Jeep dealership that this vehicle is unsafe to drive. I have filed complaints with Chrysler on three occasions informing them of the numerous issues with this vehicle. I was advised to get a diagnostic test done and they would work with me to buy this car back. I did as requested and now being informed I will probably have to go to arbitration. Three times now when I applied the brakes hard on a highway the east locked up and the left rear of my car skidded and I had no control. I nearly hit a retaining wall. I have a vehicle that the dealership has deemed unsafe to drive.