Ok, here's what I'm gathering... we need to contact GM in order to obtain the Johnson Controls software update information. I'm not certain if we need to pay extra for the software update for text messaging, which it does state we could have that option. My husband is a tech guy and we sat in the car for over an hour tonight as 2 of our other vehicles have the text messaging features. Not only am I going to reach out to GM, but I'm also going to contact the lady who GM sent to train me on my C7 the day I picked it up. Texting wasn't discussed/covered. I see "where" the option should go for me to select it, BUT it's not there. I see the Bluetooth on many screens, etc.
More to come...