Installation Procedure

Fig 1: View Of Rear Seat Back & Mounting Nuts

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

If the right seat back was removed, perform the following:
1. Position the right seat back to the vehicle.
2. Install the navigation control processor bracket, if equipped. Refer to Bracket Assembly Replacement - OnStar Module (Trailblazer EXT, Envoy XL) or Bracket Assembly Replacement - OnStar Module (Trailblazer, Envoy, Rainier) .
3. Install the right front rear seat back mounting nut.
  Tighten: Tighten the rear seat back mounting nut to 45 N.m (33 lb ft).
4. Tumble the right seat back in order to gain access to the right rear seat stud.
5. Install the right rear seat back mounting nut.
  Tighten: Tighten the rear seat back mounting nut to 45 N.m (33 lb ft).
6. Return the right seat back to the upright position.
Position the left seat back to the vehicle.
Install the left 3 front seat back mounting nuts.
Tighten: Tighten the rear seat back mounting nuts to 45 N.m (33 lb ft).
Tumble the left seat back in order to gain access to the left rear seat studs.
Install the left 2 rear seat back mounting nuts.
Tighten: Tighten the nuts to 45 N.m (33 lb ft).
Return the left seat back to the upright position.