When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Here's a photo of a "Chipped Transponder" key like those used in the HHR, look for the "+" in a circle on the key shank(Yeah I know the photo is of a GMC key), but you get the idea.
Hello Tbone,
Welcome to the board.
just below the black plastic part there will be a circle with a cross inside it stamped into the top of the key.
Hope this helps,