My 2010 MDX is currently dropping calls from my iPhone 6s. The calls do not disconnect, but rather switch to the phone. It does not matter if I am using Bluetooth or have the phone plugged into the car. It almost caused an accident on more than one occasion. What do I do?

 

Did you recently update the iOS in your phone? This often causes issues with paired devices.
I would start by unpairing the phone from the vehicle and the vehicle from the phone. By that I mean deleting the vehicle from the device and the device from the vehicle completely. I would then re-pair the two and test the calls. If that doesn't work then the issue may be buried in the car.

 

Also try asking the 2nd generation forum. I think there were BT radio issues back then that required replacement parts to fix.