I have a 2020 honda civic ex. The car was running fine all day today but when I going to use my car I turned it on and it automatically accelerated and I wasn't able to shift into any of the gears. The battery did randomly die a few days and I was able to jump start and it worked perfectly fine. I do take my car to honda for my maintenance about every 3-4 months. I need help trying to figure out what's wrong before I pay for diagnostic at a autoshop.