Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the following components to the seat cushion frame:
    • The plastic retainers (3)
    • The frame suspension (2)
    • The frame springs (1)
  2. Fig 1: View Of Lumbar Cable And Front Seat Cushion Frame Components
    GM407184Courtesy of GENERAL MOTORS CORP.
  3. Install the seat cushion trim cover and pad. Refer to Seat Cushion Trim Cover and Pad ReplacementΒ .
  4. Install the seat trim panel. Refer to Trim Panel Replacement - Front SeatΒ .
  5. Re-zero the inflatable restraint passenger presence system. Refer to Passenger Presence System Rezeroing Procedure in SIR.
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.