Horn Assembly problems of the 2016 Chevrolet Malibu

My horn doesn't work sometimes, check engine light comes on and off, radio stop working sometimes,when turning on the heat or air conditioner it sounds like sparks coming from the inside of that area.

I decided to lease a 2016 Malibu of February 2016. The car was great until months later I started to have problems. I was driving to school on the freeway in October 2016, when my car suddenly went into reduce speed engine. I was driving approximately 65 to 70 mph. I was in the left lane of the freeway. As I was driving my car dashboard display reduce speed engine, then immediately my car went from 70 mph to 30 mph to 20mph. I manage to get my car to the emergency lane of the freeway. The problem was fixed that following week, with complications of trying to get a rental car so I can go to work and school. 2017 October 31st, I was driving to go pick up my son from school. I was on a major street. My car went into reduce speed engine. I was driving 35 mph. My car went from 35 to 20 mph's again. I managed to pull into a near bank. Shaken up I parked my car and turn it off and then back on within five minutes. The light was still display on my dashboard. I drove to my son school. I couldn't drive over 10 mph. It normally take 10 minutes to drive to my son school it 25. It took even longer to get back home. November 30th, same problem happen again. While driving on a major highway. Once again I was in the left lane driving the reduce speed engine came on. My car slowed down. I had cars behind me honking their horns at me nearly causing a few accidents. I manage to get off the freeway. I did not want to be stuck on the freeway while it was dark. I was stranded at a nearby gas station for close to two hours. The problems I keep having with this car is dangerous. I refuse to drive a vehicle that can potentially cause me or my son our lives.