Mobile Identification Number and Mobile Directory Number: Notes

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Directives by the Federal Communication Commission (FCC) have mandated that cellular devices manufactured after November 2002 must have a capability that allows customers to transfer their assigned phone numbers to any new cellular devises purchased in the future. Devises which fall into this category no longer have a single phone number, but 2 numbers which identify that device, a MIN (Mobile Identification Number) and a MDN (Mobile Directory Number). The MIN represents the number used by the cellular carrier for call routing purposes while the MDN represents the number dialed to reach the cellular devise. Because of these FCC directives, some OnStar® systems may not recite the correct phone number when the user requests the My Number feature of OPC. This situation is considered normal for any OnStar® system that exhibits the condition. Customers using OPC can contact the OnStar® Call Center and ask an advisor what their correct number is at any time. Although technicians have the capability to change these numbers by means of the scan tool, this should ONLY be done at the direction of and with explicit instruction from the General Motors Technical Assistance Center (GM TAC).

Dialing a Phone Number Hands Free

Caller Action	OnStar® System Response
IMPORTANT: If you make a mistake with a number or the OnStar® system misunderstands you, say "clear". This will erase the last number said.
Press the Call/Answer button.	"Ready" or "OnStar Ready"
Dial	"Number please."
Say each number clearly, pausing until the system confirms receipt of the number.	The system will repeat the number stated. If the number was not heard or understood, the system will state the word "number" prompting the user to repeat the last number.
Dial	"Dialing" or "Dialing" plus the phone number given.