When I tried to register a new cell phone to ES350 with Nav., everything went fine. The pairing was successful. I turn off the ignition, and let it sat for a while, the system did not show the new phone as one of the options after I turned the car back on. I followed the steps of deleting the only phone on the list. The system showed that the phone was deleted. After turning the car off and on again (more than 10 minutes), the old phone appear on the phone list again. (I tried on changing the passkey and name of the phone, but none of the changes would take effect.)
It seems that I could do everything I need to do on the bluetooth pairing, but the memory of the navigation system was not changed. Can anyone help?
