I have read your post about your questions of the grill and remote start for your 2007 Chevrolet HHR. I see that you have posted that this a Canadian vehicle; I do recommend contacting General Motors of Canada at 1-800-263-3777, for further information about the remote start for your specific vehicle. You should be able to get your build sheet information from them, but they will need your VIN in order to look into this for you. Their hours of operation are Monday through Friday, 7:30am to 11:30pm EST and Saturday 7:30am to 6:00pm EST.
I apologize that I am not able to retrieve the information that you are seeking since I am only able to view the vehicles that are for the United States. I apologize for this inconvenience.
Michelle, Chevrolet Customer Service