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Home >> Pontiac >> 2001 >> Aztek Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 679 (Cellular Communication System) >> Repair Instructions >> OnStar® Vehicle Communication Unit (VCU) Replacement >> Removal Procedure

Removal 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. Remove the IP trim panel. Refer to TRIM PANEL REPLACEMENT - INSTRUMENT PANEL (I/P) UPPER .
  2. Remove the IP cluster harness in order to gain access to the VCU bracket screw.
  3. Remove the screw securing the VCU to the bracket.
  4. Disconnect the electrical connectors.
  5. Remove the VCU from the bracket.
  6. The old VCU must be returned for core credit.
    Fig 1: OnStar® Vehicle Communication Unit (VCU) Replacement
    G01712614Courtesy of GENERAL MOTORS CORP.
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