I see that in previous discussions there is no way to do this. I have type in the DR (for driving code) but that makes me type DR in the text box while driving. I hope that Apple finds a fix for this soon. I have clients that have this feature on other phones and I am very jealous. I am a REALTOR and my text goes crazy a lot. I will not answer when driving and I wish I had a way to let my clients know that I am not blowing them off.