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For 1990-2009 cars only

SMU - Revised Liftgate Lock Cylinder Replacement

Subject:Revised Liftgate Lock Cylinder Replacement

Models:2004-2006 Buick Rainier Models
2002-2006 Chevrolet TrailBlazer Models
2002-2006 GMC Envoy Models
2004 Oldsmobile Bravada
2005-2006 Saab 9-7X



This bulletin is being issued to revise the Lock Cylinder Replacement - Liftgate procedure in the Body Rear End sub-section of the Service Manual. Please replace the current information in the Service Manual with the following information.

The following information has been updated within SI. If you are using a paper version of this Service Manual, please make a reference to this bulletin on the affected page.

When replacing the liftgate lock cylinder, removal of the rear window wiper motor, if equipped, is required.

Lock Cylinder Replacement - Liftgate

Removal Procedure

  1. Remove the rear wiper motor. Refer to Wiper Motor Replacement - Rear.

  2. Object Number: 721374  Size: SH
  3. Remove the lock rod from the lock cylinder.

  4. Object Number: 721379  Size: SH
  5. Remove the C clip from the groove in the lock cylinder.
  6. Remove the lock cylinder from the liftgate.

Installation Procedure


    Object Number: 721379  Size: SH
  1. Install the lock cylinder to the liftgate.
  2. Install the C clip to the groove in the lock cylinder.

  3. Object Number: 721374  Size: SH
  4. Install the lock rod to the lock cylinder.
  5. Install the rear wiper motor. Refer to Wiper Motor Replacement -- Rear.