Installation Procedure

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Record the 10-digit STID number from the label on the VIU module.

Fig 1: Installing Screws

Courtesy of GENERAL MOTORS CORP.

Install the VIU to the bracket.
Connect the electrical connectors.

NOTE: Refer to FASTENER NOTICE .

Install the screws (1) securing the VIU to the bracket.
Tighten: Tighten the screws to 9 N.m (80 lb in).
Install the IP trim panel. Refer to TRIM PANEL REPLACEMENT - INSTRUMENT PANEL (I/P) UPPER .

IMPORTANT: After replacing the VIU, you must reconfigure the OnStar® system. Failure to reconfigure the system will result in an additional customer visit for repair.

Press and hold the white dot button until the OnStar® status LED turns from green to red, and back again to green.
Install a scan tool. Use the ID information menu to access the new STID number.
Move the vehicle to an open area that is away from tall buildings and with a clear view of unobstructed sky. Allow the vehicle to run for 10 minutes.
Press the blue OnStar® button to connect to the OnStar® call center.
1. Tell the advisor that this vehicle has received a new VIU.
2. Ask the advisor to add the new STID to update the customer's account.
3. Follow any additional instructions from the OnStar® advisor.
4. Ask the advisor to activate the OnStar® personal calling feature, if available.