TrailBlazer 4WD L6-4.2L VIN S (2002)
3. Install the SIR harness (2) to the seat clips (1, 4).
4. Connect the gray lumbar electrical connector (5), if equipped.
5. Connect the black electrical connector (3) to the seat belt buckle.
6. Connect the black electrical connector (6) to the seat back harness.
7. Install the seat belt buckle to the seat with the nut.
Tighten
Tighten the seat belt buckle nut to 55 N.m (41 lb ft).
8. Install the seat cushion trim panel.
9. Install the front bucket seat assembly to the vehicle.