You open the hood and look at the firewall,if the expansion valve is there you have the provision.You can also look for the code in the glove box.Check out my posts and see what you're in for.You will have to program the body computer with a tech 2 tool.The ECM in my car will not recognize the ac and the dealer has not been able to program it.GM has refused to help so now I have $500 invested in ac that doesn't work.