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 4WD L6-4.2L VIN SREPAIR AND DIAGNOSISBODY AND FRAMESEATSSEAT BACKSERVICE AND REPAIRPROCEDURESSEAT BACK REPLACEMENT - REAR NO. 1 - 2
2003 Chevrolet TrailBlazer 4WD L6-4.2L VIN S
Seat Back Replacement - Rear No. 1 - 2
2003 Chevrolet TrailBlazer 4WD L6-4.2L VIN SSECTION Seat Back Replacement - Rear No. 1 - 2
SEAT BACK REPLACEMENT - REAR NO. 1 (TRAILBLAZER, EXT, ENVOY XL)
REMOVAL PROCEDURE
1. Remove the screws from the inboard/outboard rear seat back cushion hinge covers.
2. Remove the rear seat belt anchor nut (2).
3. Remove the seat back cover and pad high enough to expose the seat back cushion mounting bolts.
4. Remove the seat back mounting bolts (2) securing the rear seat back frame to the inboard/outboard rear seat back cushion hinge assembly.
5. Remove the seat back assembly.
INSTALLATION PROCEDURE
1. Install the seat back cushion mounting bolts (2) securing the rear seat back frame to the inboard/outboard rear seat back cushion hinge assembly.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten all rear seat back cushion mounting bolts to 25 N.m (18 lb ft).
2. Install the rear seat belt anchor nut (2).
Tighten
Tighten all rear center seat belt anchor nut to 60 N.m (44 lb ft).
3. Install the seat back cover and pad to the seat back.
4. Install the inboard/outboard rear seat back cushion hinge covers with the three screws.
Tighten
Tighten the seat back cushion hinge cover screws to 2 N.m (18 lb in).
REMOVAL PROCEDURE
1. Remove the screws from the inboard/outboard rear seat back cushion hinge covers.
2. Remove the rear seat belt anchor nut (2).
3. Remove the seat back cover and pad high enough to expose the seat back cushion mounting bolts.
4. Remove the seat back mounting bolts (2) securing the rear seat back frame to the inboard/outboard rear seat back cushion hinge assembly.
5. Remove the seat back assembly.
INSTALLATION PROCEDURE
1. Install the seat back cushion mounting bolts (2) securing the rear seat back frame to the inboard/outboard rear seat back cushion hinge assembly.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten all rear seat back cushion mounting bolts to 25 N.m (18 lb ft).
2. Install the rear seat belt anchor nut (2).
Tighten
Tighten all rear center seat belt anchor nut to 60 N.m (44 lb ft).
3. Install the seat back cover and pad to the seat back.
4. Install the inboard/outboard rear seat back cushion hinge covers with the three screws.
Tighten
Tighten the seat back cushion hinge cover screws to 2 N.m (18 lb in).
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.