Are you running some future version of iOS? If not, they're full of it.
Have you tried rebooting the system? Hold the volume button down for 5-10 seconds and the system will re-boot itself. Once in a while, I find this fixes problems. I haven't seen many problems with the 19 QX50 Intouch system, but try that.
If that doesn't resolve the problem, return to the dealer and tell them to come up with a better excuse. Or, find a better dealer. If that fails, call customer service.
Like I said, I've only seen problems with Intouch once or twice on the new QX50 - but a reboot resolved them easily. Also, try removing the phone from the car AND the car from the phone. Then re-pair them. To remove the phone from the car, go to Settings-Bluetooth-Connected devices. Tap on your phone and then "remove" or "delete". To remove your car from your phone, go to Settings - Bluetooth, tap the little blue "i" next to the "MY-CAR" and "Forget Device".
Have you tried rebooting the system? Hold the volume button down for 5-10 seconds and the system will re-boot itself. Once in a while, I find this fixes problems. I haven't seen many problems with the 19 QX50 Intouch system, but try that.
If that doesn't resolve the problem, return to the dealer and tell them to come up with a better excuse. Or, find a better dealer. If that fails, call customer service.
Like I said, I've only seen problems with Intouch once or twice on the new QX50 - but a reboot resolved them easily. Also, try removing the phone from the car AND the car from the phone. Then re-pair them. To remove the phone from the car, go to Settings-Bluetooth-Connected devices. Tap on your phone and then "remove" or "delete". To remove your car from your phone, go to Settings - Bluetooth, tap the little blue "i" next to the "MY-CAR" and "Forget Device".