I hate to "necro" a thread but ...

Just in case anyone wanted it, I just uploaded a PDF with GM's complete list of RPO codes. I would have thought someone here would have already done so, but I didn't find it anywhere. It is in the files section on the HHR SS Facebook page.
https://www.facebook.com/groups/HHRSS/files/

 

Casa. Try the Sticky link below. It's an old thread but still accurate.
A lot of us don't Facebook so it comes in handy.

https://www.chevyhhr.net/forums/gene...options-12674/

 

Fwiw. It is located in the General HHR section. Easily overlooked because it's a Sticky towards the top of the listings.

 

Thanks George, I saw that and used it a bit but found it was kind of hard to use as a reference. The PDF I found has literally EVERY code for every GM car and is easily searchable.

I just wish there was a way to print out a window sticker to show everything nicely.