2014 Ram 1500 electrical system problems

My son was driving on the freeway and went to change lanes and all of a sudden the power steering system stopped working and he told me after the fact that it locked up and he could not turn the steering wheel so he hit a guard rail and flipped the truck on its side. It caught on fire instantly and he was lucky to be able to get out. A passerby stopped while the truck was on fire and held the passenger door opened for him as he climbed out.

Horn no longer works, by pushing it or with key fob locking when locking my truck. I've read that this has happen on multiple ram 1500s. My just stop when exiting my truck and I notice I didnt get any beep when trying to secure my truck. Checked every fuse, relay, even took it to the dealership I purchased it from. Only had the truck for 4 weeks and they told me I would have to pay $600. This is a safety issue and I shouldn't be responsible for a horn not beeping..