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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1419 (NAVIGATION SYSTEMS)REPAIR INSTRUCTIONSANTENNA REPLACEMENT - GLOBAL POSITIONING SYSTEM (GPS) (MODULE ASSEMBLY RADIO ANTENNA)REMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: It is not necessary to lower the steering column to remove the radio antenna module.
  1. Remove the navigational radio. Refer to Radio Replacement .
    2. Fig 1: Disconnecting Navigational Radio Electrical Connector
    GM1226967Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the electrical connector from the navigational radio (1).
  3. Partially remove the instrument panel (I/P) assembly from the I/P structure, to gain access to the antenna module retaining screw. Refer to Instrument Panel (I/P) Assembly Replacement in Instrument Panel Gages and Console.
  4. Remove the screw retaining the radio antenna module to the cross-car beam (2).
  5. Remove the antenna module from the vehicle.
RENDER: 1.0x

NO RELATED

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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.