Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
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Fig 1: Daytime Running and Fog Lamp Assembly
G01696776Courtesy of GENERAL MOTORS CORP.
  1. Install the lamp assembly to the vehicle.
  2. Install the fasteners to the lamp assembly. Tighten the fasteners 1.1 N.m (10 in).
  3. Install the bulbs to the daytime running and fog lamp assembly by turning the bulb 1/4 turn clockwise.
  4. Connect the electrical harness connectors.
  5. Lower the vehicle.
  6. Re-aim the fog lamps. Refer to Fog Lamp Aiming ProcedureΒ .
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.