Gm Build Sheet Codes - Web easiest way is to just take a pic of the rpo codes on the sticker in the glovebox. Web each rpo code is a combination of three alphanumeric characters (like z71) that refers to a specific option or modification. Every option is listed there.
Web easiest way is to just take a pic of the rpo codes on the sticker in the glovebox. Web each rpo code is a combination of three alphanumeric characters (like z71) that refers to a specific option or modification. Every option is listed there.