he didn't say to look for a start button. under the parking brake lever or toward the glove box from the cup holder is an odd shaped indented cubby hole. you need to pry the cover off the bottom of this to access the key ignition. THIS ONLY IS RELEVANT ON PUSH BUTTON START CARS.No start button on my brake lever. You have any pictures of said button?
Please see section 2-6 of the manual below, it shows a picture and explains the key relearn procedure.
http://www.chevrolet.com/content/da...rship/Manuals and Videos/02_pdf/2k13cruze.pdf