2014 Jeep Cherokee

We have been towing a 2014 Cherokee Limited since May 2014, other than the electronic parking brake issues, it had towed good. Last September we were in Colorado and hit a rough spot in the road. our 43' Allegro Buss started shaking so much I thought there was real problem with tires or front end. When I checked the front wheels on the Jeep.

I straightened the steering wheel and it was fine. Now when we hit a rough spot on a road the front wheels do not straighten so I have to come to a complete stop and start over. So far this has been when we were going 45 mph or less because of the rough road, but not sure if it is going to happen when going faster since it seems to be getting worse. Will be taking it to the Jeep dealer before we tow it again.

Any one else having problems with this or with the electronic parking brake coming on when not turned on? Thanks