LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2002 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 615 (Cellular Communication System) >> Repair Instructions >> OnStar® Vehicle Interface Unit (VIU) Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Record the 10-digit STID number from the label on the VIU module.
  2. Install the VIU to the bracket.
  3. Connect the electrical connectors.
  4. Install the screws (1) securing the VIU to the bracket. Tighten the screws to 9 N.m (80 lb in).
  5. Install the IP trim panel. Refer to TRIM PANEL REPLACEMENT - INSTRUMENT PANEL (I/P) UPPER .
  6. Contact the OnStar® Dealer Support line by pressing the OnStar® button twice. The 10-digit STID number recorded will be needed by the OnStar® Dealer Support line.
scientia non olet · About LEMON Manuals