Gas Recirculation Valve (egr Valve) problems of the 2014 Infiniti Q50

During 20 degree f, I drove my car with no issues to a retail store, parked it in a parking lot. After shopping, returned to my car & started it up, put in reverse, started backing up, then several malfunction lights lit up on the car's dash & the steering wheel locked all of a sudden. I could not turn the steering wheel. I could only move the car forward & backward & this is all while the car is powered on. I had to have the car towed to the dealership. In past history, there has been 2 other steering recalls (electric power assist system & adaptive steering parts) on this same make/model,& year. The dealership service team told me on 1/22/19 & the issue with my car was the chassis control module (the brain of the steering wheel) & a lane departure malfunction & the cost of repair is $1600 (not covered) despite I have an extended warranty. The chassis control module as the brain of the steering wheel clearly relates to the previous steering recalls (electric power assist system & adaptive steering parts) along with the lane departure malfunction as diagnosed by Infiniti dealer in suitland, maryland. The description of the previous 2 recalls (electric power assist system & adaptive steering parts) say that in freezing climates, the engine compartment reaches freezing, disabling the power steering system, resulting in a loss of steering, increasing risk of crash. As diagnosed by Infiniti, definitely the chassis control module & even the lane departure technology parts have not been included in the previous steering recalls & should have been. Please issue steering recalls for the chassis control module and lane departure malfunction parts or just the entire steering system. Infiniti is fixing my car at no charge to me after I told them about the related previous steering recalls. Per the internet, many people have experienced this with this car model. Danger!!.