I'll have to check exactly what mine says in that bottom right side under GM. If it is the original windshield, then WHY would they have forgotten to tint the top glare strip?? After what you've posted, I look at my glare stip all of the time.
Especially on sunny days like today! Hopefully you'll be calling your dealer soon. Did you get yours at that dealer near Hotel Row in SD? (Can't think of teh name of the dealer).