A Constraint is a limit placed on an specific build configurations.
No web sites. GM stopped that.
You need someone who works in a GM dealer to have access to check on it and you need an order number. You could try this site, Camaro salesman might look it up for you as she will for a Camaro
http://www.camaro5.com/forums/showthread.php?t=31115&page=1933
