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 DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTCELLULAR COMMUNICATION SYSTEMREPAIR INSTRUCTIONSANTENNA BRACKET REPLACEMENTINSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Installation Procedure
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
- Position the antenna bracket to the roof panel.
- Seat the antenna bracket retaining clip to the roof panel.NOTE: Refer to Fastener Notice in Cautions and Notices.
- Install the retaining screw to the antenna bracket.
Tighten
Tighten the screw to 2.5 N.m (22 lb in).
- Install the headliner. Refer to INTERIOR TRIM or INTERIOR TRIM
- Install the navigation antenna. Refer to NAVIGATION ANTENNA REPLACEMENT
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.