Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Route the wiring harness through the retainer.
    Fig 1: Routing Wiring Harness Through Retainer
    G01587524Courtesy of GENERAL MOTORS CORP.
  2. Install the retainer by pressing into place until fully seated.
    Fig 2: Installing Retainer
    G01587525Courtesy of GENERAL MOTORS CORP.
  3. Connect the electrical connector to the socket.
    Fig 3: Connecting Electrical Connector To Socket
    G01587526Courtesy of GENERAL MOTORS CORP.
  4. Align the socket to the to the retainer.
    Fig 4: Aligning Socket To Retainer
    G01587527Courtesy of GENERAL MOTORS CORP.
  5. Press the socket into place until fully seated.
    Fig 5: Pressing Socket Into Place Until Fully Seated
    G01587528Courtesy of GENERAL MOTORS CORP.
  6. Install the lighter element.
  7. Install the cigarette lighter fuse. Refer to UNDERHOOD ELECTRICAL CENTER
  8. Inspect the lighter for proper operation.
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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.