Brake Light On problems of the 2014 Kia Motor Soul

At 10000mi, this car lost pick- up, then charging outlets failed. By 30000mi, the brakes were mushy and weak, the engine makes noise, steering issues and weird smells started to occur. By 45000mi, the brake light failed, vibration/shaking, hesitation and lurching (on its own), gas millage was cut in half, rmps/idle unusually high, faulty/ failed sensors, fuel gauge failure, heating/blower failure. Dealerships will not look into anything without a "code" tripping, and I was told by their mechanic that kia corporate will not allow any investigation of issues without a diagnostic code, so my warranty woun't cover the high price of finding the issues. I get in the car, start it up and the noise and rev is not normal. I drive 10 feet and the car starts shaking and making noise. When I tried to turn on the heat, loud noises started under the hood, and the engine would rev, when the car revved, the heat would kick on for 2 sec then fall out again. It now doesn't perform at all. When I accelerate after a stop light, it won't move for several seconds, then putters and goes. I have almost gotten into many accidents because of this.