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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 15 (BODY CONTROL MODULES)REMOVAL & INSTALLATIONRADIOREMOVAL & INSTALLATION (IMPALA)
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal & Installation (Impala)

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal & Installation (Impala)
WARNING: This page is about a different car, the 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, 2001 Chevrolet Monte Carlo, and 2001 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use correct fastener in correct location. Replacement fasteners must be correct part number for application. Fasteners requiring replacement or fasteners requiring use of thread locking compound or sealant are identified in service procedures. DO NOT use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage fastener. Use correct tightening sequence and specifications when installing fasteners in order to avoid damage to part and systems.
  1. Apply parking brake. Using a small flat-bladed tool, remove bezel from ignition switch cylinder. If vehicle is equipped with a column shift, shift transaxle in to "1". Ensure ignition key is in ignition lock cylinder.
  2. Adjust steering wheel to gain access. Remove access covers from right and left instrument panel fuse block, as required. Remove screws from instrument cluster trim plate.
  3. Starting at right end of instrument panel cluster, pull trim plate rearward. Continue working around instrument cluster trim plate until all retainers are released from instrument trim pad. Disconnect electrical connector from hazard switch and from traction control switch (if equipped). Remove instrument panel cluster trim plate.
  4. Remove screws from radio. Pull radio out of instrument panel. Disconnect instrument panel wiring harness connector and antenna cable connector from radio. Remove radio from instrument panel.
    5. NOTE: If radio locator tab is difficult to align to instrument panel locator opening, pull radio toward you and reposition antenna cable.
  5. To install, reverse removal procedures. Align radio locator tab to instrument panel locator opening while pressure radio into instrument panel until fully seated. After installation, preform radio set up procedure. See RADIO SETUP  under PROGRAMMING.
RENDER: 1.0x

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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.