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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1490 (ENTERTAINMENT SYSTEM)REPAIR INSTRUCTIONSANTENNA CABLE REPLACEMENT (WINDSHIELD)INSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Coaxial Cable At Windshield Frame
    GM289881Courtesy of GENERAL MOTORS CORP.
  1. Install the front windshield antenna cable coaxial cable into position in the vehicle.
  2. Install new tape (1) to retain the coaxial cable to the windshield frame.
    3. Fig 2: Coaxial Cable At Front Windshield Antenna Connector
    GM171883Courtesy of GENERAL MOTORS CORP.
  3. Connect the coaxial cable to the front windshield antenna connector.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the coaxial cable to the windshield frame ground wire with a bolt.

    Tighten:  Tighten the bolt to 1.8 N.m (16 lb in).

    5. Fig 3: Check That The IP Harness & Ground Wire Bolt
    GM171884Courtesy of GENERAL MOTORS CORP.
  5. Check that the IP harness (1), which runs along the windshield frame, is positioned as shown in relation to the ground wire bolt (2).
  6. Install the windshield upper garnish molding. Refer to Windshield Upper Garnish Molding Replacement in Interior Trim.
  7. Install the sunshades. Refer to Sunshade Replacement in Interior Trim.
  8. Install the windshield side garnish moldings. Windshield Side Garnish Molding Replacement in Interior Trim.
    9. Fig 4: Coaxial Cable At Insulation Tape Along The Hinge Pillar
    GM65098Courtesy of GENERAL MOTORS CORP.
  9. Install the coaxial cable to the insulation tape along the hinge pillar.
  10. Install the IP left lower insulator panel. Refer to Closeout/Insulator Panel Replacement - Left in Instrument Panel, Gages and Console.
    11. Fig 5: Front Windshield Antenna Coaxial Cable At Antenna Module
    GM65099Courtesy of GENERAL MOTORS CORP.
  11. Tape the front windshield antenna coaxial cable to the radio control antenna coaxial cable and the IP wiring harness.
  12. Install the IP wiring harness push -in retainers to the floor panel support.
  13. Secure the IP wiring harness to the body retaining clips.
  14. Connect the coaxial cable to the antenna module.
  15. Install the left lock pillar trim. Refer to Trim Replacement - Lock Pillar (Upper Convertible) or Trim Replacement - Lock Pillar (Coupe) or Trim Replacement - Lock Pillar (Lower Convertible and Hard Top) in Interior Trim.
  16. Install the left door sill plate. Refer to Door Sill Plate Replacement in Interior Trim.
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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.