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 1196 (ENTERTAINMENT SYSTEM)REPAIR INSTRUCTIONSANTENNA MODULE REPLACEMENTINSTALLATION 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 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Install the antenna module (6) into position on the lock pillar.
Align the module locator tab to the lock pillar locating hole (2).

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the antenna module (6) retaining screws.
Tighten

Tighten the antenna module retaining screws to 1.8 N.m (16 lb in).
Connect the following three coaxial cables to the antenna module (6).
- Rear lift window antenna extension (1)
- Radio control (4)
- Front windshield antenna (5)
Connect the electrical/audio connector (3) to the antenna module (6).
Install the lock pillar trim panel. 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.
Install the door sill plate. Refer to DOOR SILL PLATE REPLACEMENT in Interior Trim.

Fig 1: Antenna Module
Courtesy of GENERAL MOTORS CORP.

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.