[Vettster]

Check with the dealer. Be persistant.
My 06 mirror broke when I tried to take off a stick on spot mirror.
The first dealer I checked with told me that I had to replace the whole mirror.
The second dealer ordered me the glass but it was back ordered and I ended up installing the whole mirror as I was leaving on a trip and was pulling a trailer.

This was on my 06, heated and auto dimming mirror.

Edit: I just saw that you are in Houston. I bought my H2 at DeMontrond. Check with John (Service Manager) as he is the one who ordered the glass for me.