I recently bought a 2020 Sonic Hatchback. It has no cruise control just a plastic cover. If I buy the switch and install will I be able to use it? The other option would be to buy a new steering wheel and replace with it to get cruise control?
No, you need the computer reprogrammed by a dealer/shop. They need a special code that comes with the kit from GM. I think the part number is 95142787.