most if not all US made cars are pre-wired for heated seats. You will need to replace The SZM module for the buttons, and then replace the seat leather on both front seat bottoms and backrest.

For retrofitting rear heated seats, you must purchase the heated switch modules, and replace the seat leather as well. you must also remove the center console and both front seats, to lift the carpet up to find the connector harness's for the heated switch modules.

expect to spend $3000-4000