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Tips and Troubleshooting Chart (cont’d)
Problem Cause and Solution
Voice prompts are missing in the vehicle. Check your voice prompt settings on your desktop
computer:
• Insert the DMS.
• Open the Device view and select the DMS.
• Press the Hardware Options button.
• Open the DMS Database/Voice Prompts tab
and click Fix Voice Prompts.
Customer Assistance Center
For customer assistance in the United States, call
1-877-GM-PHATN (877-467-4286) or contact
the Customer Assistance Center through
the internet at gmmobilemediasupportgedas.com
For customer assistance in Canada, see the
Customer Assistance Offices in the index of your
vehicle’s owner manual.
Theft-Deterrent Feature
THEFTLOCK
®
is designed to discourage theft of
your vehicle’s radio. The feature works
automatically by learning a portion of the Vehicle
Identification Number (VIN). If the radio is
moved to a different vehicle, it will not operate and
LOCKED will appear on the display.
With THEFTLOCK
®
activated, the radio will not
operate if stolen.
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