Headlights problems of the 2011 Jeep Wrangler

Was entering onto the interstate when my 2011 Jeep Wrangler completely shut off, all warning lights on the dash came on, power steering went out, and headlights turned off. Immediately maneuvered the Jeep off of the interstate where I sat in 20 degree weather for a half hour before it would start back. Two weeks later I was driving down the interstate in a rain storm and the windshield wipers completely shut off. Once again, we had to carefully get off of the interstate and try to get them working, which we failed to do. Had to wait until the storm passed before we were able to get the vehicle home. My husband is a mechanic and began driving the Jeep on a daily basis with a computer hooked to it in hopes to catch a code. Once again, the Jeep shut off all power and threw a code for the tipm module. Since then, we've had several instances where the Jeep looses all power and shuts off along with the traction control kicking off and on. We bought the Jeep and had it for only 3 weeks before the problems began. We've contacted the dealer we purchased from, several Jeep dealerships and Chrysler directly and received the run around by all of them. We contacted our local Jeep dealer where we were told that the tipm modules were a common problem and they were on back order with no estimated time of arrival, but they would call when it came in. That was 8 months ago and still we haven't received a call. I'm always nervous when I drive it now because you never know when is going to shut off in traffic and cause a wreck because you can't get off of the interstate nor can you steer easily. I really wish Chrysler would own up to this issue before it kills someone!.