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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 243 (CELLULAR COMMUNICATION SYSTEM)REPAIR INSTRUCTIONSCOUPLING REPLACEMENT - ANTENNA OUTERINSTALLATION PROCEDURE
2006 Chevrolet Suburban K2500, 6.0 U

Installation Procedure

2006 Chevrolet Suburban K2500, 6.0 USECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clean the rear window with an alcohol wipe.
  2. Dry the glass thoroughly using a lint free cloth.

    Important: 

    • The adhesion promoter must be used to assure adequate bonding of the coupling.
    • Mask off or protect areas before applying the adhesion promoter.
  3. Apply Glass Adhesion Promoter GM P/N 12378555 (Canadian P/N 88901239) to the rear window in the area where you will install the antenna coupling. Follow the Glass Adhesion Promoter instructions on the product label.
    Fig 1: Cleaning & Drying Rear Window
    G02422524Courtesy of GENERAL MOTORS CORP.

    Important: 

    • Align the inner and the outer antenna couplings.
    • Do not touch the adhesive backing on the antenna coupling.
  4. Remove the protective film from the adhesive backing on the outer antenna coupling.
  5. Align the outer antenna coupling to the inner antenna coupling.
  6. Press firmly on all 4 corners and on the center of the antenna outer coupling (5) in order to ensure proper adhesion to the rear window (4). Hold pressure on the outer coupling (5) for 10-30 seconds.
  7. Ensure that no gaps occur between the couplings (5,2) and the rear window (4).
  8. Keep the vehicle dry. Allow 6 to 8 hours, at 15°C (60°F), for the adhesive to cure after installation.
    Fig 2: Ensuring Proper Adhesion Of Antenna Outer Coupling
    G02422525Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.