I had the same problem after the update. Did you do a soft reset? While the car is running, hold down the volume button for ~30 seconds until the InTouch screen reboots. I have not had the problem repeat itself after I forced the reboot.I just had the update Thursday, and last night I already had the system freeze on me. After shutting down and starting the car up again, the steering wheel volume control still didn't work. Sometimes I need to leave it shut down for a few minutes to reset completely.