Adaptive Equipment problems of the 2011 Chrysler 200

Continued problems with heating system on Chrysler 200, year 2011, touring model, v6 pen star engine: lack of heat on passenger side, & side windows fogging up. Little to no heat on driver's side. I have taken the car to the Chrysler dealership 4 x and each time, they flush and check the heating lines and say there is nothing wrong, that I have heat. The heat seems a little better for a short while, then the same thing happens again, I lose heat and only cold air is blowing out of vents with heat setting on max. I paid for an extended warranty when the vehicle was purchased new. I am told each time there is nothing wrong. There has to be something wrong! I never owned a vehicle with this problem and am very disappointed. What am I to do with no heat and subzero temps. ?? now the driver's side has little to no heat and windows are fogging up. There must be a manufacturer defect in the heating system on these vehicles.

Flimsy front floor mat migrated and bunched up under accelerator pedal preventing acceleration as needed even though mat was hooked on hook provided. Head end of mat rotates over toward accelerator pedal when getting in and out of car. Inability to accelerate as needed could be as dangerous as a stuck accelerator. It is conceivable that this situation could also result in a stuck accelerator pedal.