Yes, didn't come with a owners manual sadly when I bought it off of a private owner so I'm not real sure if this is factory keyless remote, wouldn't let me upload a picture I dont think but if it works you'll see what I mean
Ya perfect pic. Mine does not have the GM written on mine, but it is for the trunk on my car or the lift gate glass on yours I believe.
Here is the link to your online free pdf owners manual. http://www.vadengmpp.com/owners-manu...let-Blazer.pdf
Section 2-7 is where the FOB info is that I found...
Hope this helps!