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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTCELLULAR COMMUNICATION SYSTEMREPAIR INSTRUCTIONSONSTAR MICROPHONE REPLACEMENTINSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
  1. If installation of the mounting bracket is required, install the mounting bracket to the overhead console.
    NOTE: Refer to Fastener Notice   in Cautions and Notices.
  2. Install the 2 OnStar® microphone retaining screws.

    Tighten 

    Tighten the screws to 0.8 N.m (7 lb in).

  3. Install the microphone to the mounting bracket ensuring the quick release tab (1) is fully seated.
    Fig 1: Installing Mounting Bracket To Overhead Console
    G01640741Courtesy of GENERAL MOTORS CORP.
  4. Connect the electrical connector to the OnStar® microphone (1).
  5. Install the overhead console. Refer to OVERHEAD CONSOLE REPLACEMENT - FRONT  in Interior Trim.
    Fig 2: Connecting Electrical Connector To Onstar® Microphone
    G01640742Courtesy 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.