2017 Jeep Cherokee steering problems

Tl* the contact owned a 2017 jeep cherokee. While driving approximately 40 MPH, the vehicle suddenly accelerated. The driver lost control of the steering and crashed into a ditch. During the incident, the brakes and steering wheel malfunctioned and would not operate, and the air bags did not deploy. The vehicle was destroyed. The driver sustained injuries to the back and both knees. Medical attention was not received. A police report was filed. The cause of the failures was not determined.

On two occasions while flat towing the jeep behind our rv the front end wobbled excessively and only stopped when we slowed to almost a stop. Both instances happened within 15 minutes of starting to travel in the morning and happened in construction zones where the pavement was rough. We had heard of this issue so we had the dealer install the mopar sterring harness when we bought the car. This was suppose to eliminate the problem but its clear it did not do so.