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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1596 (SEAT SYSTEM)REPAIR INSTRUCTIONSLUMBAR REPLACEMENT-FRONT SEATREMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the front seat from the vehicle. Refer to Seat Replacement-Front Bucket   . 
  2. Remove the head restraint and guides. Refer to Head Restraint Replacement   . 
  3. Remove the seat back cover and pad. Refer to Seat Back Cover And Pad Replacement-Front   . 
  4. Drill out the rivet holes on the bolster paddles (1).
    Fig 1: Drilling Out Rivet Holes On Bolster Paddles
    G01579232Courtesy of GENERAL MOTORS CORP.
  5. Detach the lumbar clip from the top of the seat frame.
  6. Remove the lumbar wire from the bottom of the seat frame.
  7. Disconnect the electrical connectors to the motors.
  8. Remove the power lumbar/bolster assembly from the seat.
    Fig 2: Removing Lumbar Wire From Bottom Of Seat Frame
    G01579233Courtesy 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.