NHTSA Complaint #11452013 — 2014 CADILLAC XTS

I was driving north on I-65 traveling about 65mph and the Rear Air Suspension failed and dropped to the point the tires were about 1 inch (2.54 cm) from the finder wells. I lost control of the car, the rear end was bouncing, almost causing me to crash. Not only that, but I had to drive it home with the hazards on, while driving on I-65, people passing me at 70mph. Cadillac knows about this fault and refuses to fix it. They want to charge you $1,000 plus to replace the entire system. My Cadillac was just at the dealership about 8 days prior to this incident for mileage scheduled maintenance, in which the suspension is one of the things they were supposed to have checked out. Someone if they haven't already is going to get killed when this happens. There is no warning.