Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Installing Switch To Console
    GM1199037Courtesy of GENERAL MOTORS CORP.
  1. Position and index the switch (1) to the console.
  2. Install the switch to the console ensuring the 4 retaining tabs are fully seated.
  3. Fig 2: Connecting Switch Electrical Connector
    GM1199035Courtesy of GENERAL MOTORS CORP.
  4. Connect the electrical connector to the switch (1).
  5. Install the overhead console. Refer to Console Replacement - Overhead (TrailBlazer, Envoy, Bravada) or Console Replacement - Overhead (Envoy XUV) .
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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.