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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1397 (CELLULAR COMMUNICATION SYSTEM)REPAIR INSTRUCTIONSANTENNA ASSEMBLY REPLACEMENT - CELLULAR AND NAVIGATIONREMOVAL 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.
  1. Lower the front portion of the headliner. Refer to Headliner Replacement (TrailBlazer, Envoy, Bravada) , Headliner Replacement (TrailBlazer EXT, Envoy XL) or Headliner Replacement (Envoy XUV) in Interior Trim.
    2. Fig 1: Removing Antenna Assembly
    GM1222548Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the electrical connectors from the antenna assembly.
  3. Loosen the retaining nut until the assembly can be removed from the roof panel.
  4. Using an upward motion, remove the antenna assembly from the roof.
RENDER: 1.0x

NO RELATED

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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.