Location of OnStar unit on 2006 Cobalt

[doctabeatz]

I just purchased a Bluestar 2010 and need to know the location of the OnStar unit on my 2006 Chevy Cobalt.

Thanks!

[mrcostar]

I just purchased a Bluestar 2010 and need to know the location of the OnStar unit on my 2006 Chevy Cobalt.

Thanks!

In the 2006 Cobalt, the onstar module is located under the rear window shelf trim panel.
You will need to follow the "EXTERNAL GMLAN APPLICATION NOTE" available on the website, as the Cobalt is GMLAN-11.
Make sure to leave the third connector plugged into the onstar box (first two go into bluestar) as the GMLAN data bus needs to be carried through to the rest of the vehicle.