User Accessed Controls (UAC) ...
This menu is used to access diagnostic information as well as to configure the OnStar device.
1.
Press and hold the "Phone Button" for 5 seconds.
2.
You will hear "Welcome to OnStar 9.0. Continuing will change your settings of your OnStar system ... ".
3.
There will be a list of options that you can choose from by saying "Yes" or "No":
CHANGE YOUR LANGUAGE changes your Language for all menus
VERIFY HANDS-FREE CALLING DATA information related to the OnStar Hands-Free calling phone
REPROGRAM YOUR HANDS FREE CALLING DATA use ONLY if requested by OnStar Technical Assistance
HANDS-FREE TUNING SETTINGS changes setting for different mic positions:
TUNING ROW
EXTERNAL MIC LOCATION
0
DO NOT USE
1 (default setting)
BEST: mic is near driver to the side of overhead center console
2
BETTER: mic is near the front of headliner near windshield
3
CONVERTIBLE: with mic near top of A-Pillar
4
CONVERTIBLE: with mic near the front of headliner near windshield
5
DO NOT USE
DIAGNOSTICS diagnostic info for the OnStar unit (with sub-categories):
• TROUBLE CODES (SAY "1")
+ Some trouble codes are provided in the Trooubleshooting section below; for other codes not listed, please contact technical support at 1.877.733.6770.
• CELLULAR (SAY "2")
+ Signal Strength (Scale: 51Dbm to -103Dbm, the lower the number the better the signal)
+ System ID
+ Preferred Roaming List (PRL): used for roaming purposes
+ Mobile Device Number (MDN): phone number for the OnStar Hands Free Calling
+ Mobile Identification Number (MIN): 10-digit unique number used to identify a mobile phone
+ Packet Data (available or unavailable): based on the cellular coverage area you are currently in; must be available to be able to download turn-by-turn
route or perform Web registration.
• BLUETOOTH (SAY "3")
+ Enabled/Disabled
+ Link Quality of Currently Paired Device (Scale: 0 to 255; Higher the number the better the link quality)
• GPS (SAY "4")
+ Aged/Current: if aged there is no GPS signal; this will be true if the vehicle is inside
+ Latitude/Longitude: the devices current or last known location
+ Time Stamp: YEAR/MONTH/DAY/HOURS(24hr scale)/MINUTES/SECONDS
Note: it will read only numbers back with no pause (example: Feb 21, 2011 4:42 PM = 20110221284200).