Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1672 (POWER SEAT SYSTEM)REPAIR INSTRUCTIONSSEAT BACK REPLACEMENT - FRONTINSTALLATION PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Install the seat back to the front seat.
NOTE: Refer to FASTENER NOTICE .
Install the pivot bolts which secure the recliner to the seat frame.
Tighten

Tighten the bolts to 24 N.m (18 lb in).
Install the new roll pins to the hinge supports and to the recliner.
Fasten the J-retainer on the outboard side of the seat cushion cover.

Fig 1: Front Seat Back
Courtesy of GENERAL MOTORS CORP.
If equipped with power lumbar, connect the lumbar modules (1,2)

Fig 2: Lumbar Modules
Courtesy of GENERAL MOTORS CORP.
If equipped with heated seats, connect the heater wire connector under the seat cushion.
Install the front seat trim panel. Refer to Trim Panel Replacement - Front Seat .
Install the E/Z entry manual release knob. Refer to Inertia Latch Replacement .
Install the front seat. Refer to Seat Replacement - Front Bucket .

Fig 3: Connecting Seat Back Heater Wire Connector
Courtesy 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.