Seat Back Hinge Replacement - Rear No. 1 (TrailBlazer EXT, Envoy XL)

Seat Back Hinge Replacement - Rear No. 1 (TrailBlazer EXT, Envoy XL)

Removal Procedure

1. Remove the seat from the vehicle.
2. Remove the inboard/outboard rear seat back cushion latch covers.




3. Remove the rear center seat belt anchor nut (2), if replacing the left-hand seat inboard hinge.




4. Remove the seat belt side buckle nut (2), if replacing the right-hand seat inboard hinge.
5. Remove the seat back cover and pad high enough to expose the seat back mounting bolts.




6. Remove the seat back mounting bolts (2) securing the rear seat back frame to the inboard/outboard rear seat back hinge assembly.
7. Remove the seat cushion mounting bolts (1) securing the rear seat cushion frame to the inboard/outboard rear seat back hinge assembly.
8. Remove the seat back assembly.

Installation Procedure





Notice: Refer to Fastener Notice in Service Precautions.

1. Install the seat cushion mounting bolts (1) securing the rear seat cushion frame to the inboard/outboard rear seat back hinge assembly.

Tighten all rear seat cushion mounting bolts to 25 N.m (18 lb ft).

2. Install the seat back mounting bolts (2) securing the rear seat back frame to the inboard/outboard rear seat back hinge assembly.

Tighten all rear seat back mounting bolts to 25 N.m (18 lb ft).




3. Install the seat belt side buckle (1) to the seat with the seat belt anchor nut (2), if replacing the right-hand seat inboard hinge.

Tighten the seat belt side buckle nut to 55 N.m (40 lb ft).




4. Install the rear center seat belt anchor nut (2), if replacing the left-hand seat inboard hinge.

Tighten all rear center seat belt anchor nut to 60 N.m (44 lb ft).

5. Install the seat back cover and pad to the seat back.
6. Install the inboard/outboard rear seat back cushion latch covers.
7. Install the seat in the vehicle.