Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 676 (ENTERTAINMENT SYSTEM)REPAIR INSTRUCTIONSFIXED ANTENNA REPLACEMENTINSTALLATION PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

From outside the vehicle, tie the wire to the new antenna cable and base assembly.
From inside the vehicle, pull on the long wire until the cable can be connected and grommet seated.
Install the cable grommet to the body.

Fig 1: Fixed Antenna

Courtesy of GENERAL MOTORS CORP.

Remove the wire and connect the antenna cable to the cable extension.

NOTE: Refer to FASTENER NOTICE .

Install the 3 bolts.
Tighten: Tighten the bolts to 5 N.m (44 lb in).

NOTE: Use tape on the tool surface so that you do not damage the paint on the antenna mast.

Install the antenna mast.
Tighten: Tighten the mast to 6 N.m (53 lb in).
Install the outboard section of the cowl vent grille panel.
Install the I/P trim panel. Refer to TRIM PANEL REPLACEMENT - INSTRUMENT PANEL (I/P UPPER) .

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.