Tail Light Switch problems of the 2010 Jeep Liberty

I lease my vehicle from jd byrider we first noticed the windows after my purchase. I went there 3 times he said he would have to take the door apart. While at the drive inns I realized there was no heat I was freezing they attempted to fix it worked like 2 days then stopped. The 4 wheel drive sticks I'm not sure if its electrical cuz the windows dont work n when it rains the tailgate light comes on with the inside lights?since I bought it the wheels make a really loud noise you cannot have windows down its behind my seat. I have read about ppls cars catching on fire they had no way to escape due to windows in these Jeeps I have been in a burning van on route 20 in girard community auto did something bad to my van and this is the first time me driving in years. My 30 days are up and I cannot pay to fix these problems I pay $380 a month for car payment & $700 rent I have 4 children and a grandson we need heat a safe vehicle to drive.