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Rear Liftgate Glass May Not Lock When Using Remote Keyless Entry (RKE)/Key Fob Transmitter/Door Lock Switch, Lifgtate Hatch or Liftgate Glass May Lock/Unlock When Rear Liftgate Glass Button Depressed

Subject:Rear Liftgate Glass May Not Lock When Using Remote Keyless Entry (RKE), Key Fob Transmitter or Door Lock Switch, And/Or Liftgate Hatch Or Liftgate Glass May Lock Then Unlock When Rear Liftgate Glass Button is Depressed (Reposition Lock Cylinder Wave Washer and Adjust Lock Rod)

Models:2005-2007 Buick Rainier
2005-2008 Chevrolet TrailBlazer, TrailBlazer EXT, TrailBlazer SS
2005-2008 GMC Envoy, Envoy XL, Envoy Denali
2005-2008 Saab 9-7X



Do This

Don't Do This

Reposition liftgate lock cylinder wave washer and adjust lock rod.

DO NOT replace the liftgate latch or actuator.

Condition

Some customers may comment on one or more of the following conditions:

    • The rear liftgate glass may not lock when using the remote keyless entry (RKE), key fob transmitter or door lock switch unless the lock is pressed a second time.
    • The rear liftgate or glass locks, but may be unlocked when the rear liftgate lock cylinder button is depressed.
    • The rear liftgate locks but the liftgate glass may not lock.

Cause

These conditions may be caused by one or all of the following:

    • The rear liftgate cylinder lock rod may be out of adjustment.

Object Number: 2007431  Size: SH
    • The wave washer on the liftgate lock cylinder may be out of position with the cup side down (1).
    • Excessive movement or slack in the lock rods at the liftgate bell crank assembly.

Object Number: 2009665  Size: SH
    • The liftgate lock cylinder pawl (1) may contact the rear liftgate glass latch when the lock cylinder button is depressed.

Correction

Important: Do Not remove the rear liftgate lock cylinder from the vehicle to perform this repair.

Reposition the rear liftgate lock cylinder wave washer and adjust the lock rod using the steps below.

  1. Verify the customer's condition.
  2. Open the liftgate.
  3. Remove the upper liftgate garnish molding. Refer to Liftgate Garnish Molding Replacement .
  4. Remove the rear liftgate trim panel. Refer to Liftgate Trim Panel Replacement in SI.

  5. Object Number: 2007451  Size: SH
  6. Remove the cylinder lock rod from the threaded lock rod retaining clip (1).
  7. Tip
    Place the tip of a screwdriver blade into the opening of the C-clip and slowly rotate the screwdriver to pry out the C-clip from the shaft. Then use needle-nose pliers to remove the C-clip.


    Object Number: 2007436  Size: SH
  8. Remove the C-clip (1) from the rear liftgate lock cylinder push button and remove the wave washer (2).

  9. Object Number: 2007703  Size: SH
  10. Install the wave washer with the cup side up (1).

  11. Object Number: 2009666  Size: SH
  12. Position the wave washer (1) with the curved edges of the wave spring parallel to the tabs (2) on the lock cylinder shaft.

  13. Object Number: 2007464  Size: SH

    Important: Use needle-nose pliers to slightly squeeze the C-clip back into shape. Make sure the clip seated, you should feel a snap and hear an audible click.

  14. Install the C-clip onto the shaft and in the slot using needle nose pliers. Then rotate the pawl several times to make sure the C-clip does not rotate. If the clip rotates then the clip is not fully seated.
  15. Position the lock cylinder pawl to the full clockwise position.
  16. Pull up on the cylinder lock rod to remove any slack in the bell crank.
  17. Install the cylinder lock rod into the threaded lock rod retaining clip while removing any slack from the lock rod linkage.
  18. Close the lock rod retainer clip.
  19. Close the liftgate assembly.
  20. Open the liftgate glass while keeping the liftgate closed.

  21. Object Number: 2007468  Size: SH
  22. Use the key fob to cycle the liftgate to the lock and unlock position while inspecting the rear liftgate pawl. The lock cylinder pawl should have clearance between the latch as shown above. If the pawl is contacting the latch, readjust the cylinder lock rod.
  23. Verify that the customer's condition has been corrected.
  24. Install the rear liftgate trim panel. Refer to Liftgate Trim Panel Replacement in SI.
  25. Install the upper liftgate garnish molding. Refer to Liftgate Garnish Molding Replacement .

Warranty Information (excluding Saab U.S. Models)

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

C9816*

Reposition Liftgate Lock Cylinder Wave Washer And Adjust Lock Rod

0.4 hr

*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.

Warranty Information (Saab U.S. Models)

For vehicles repaired under warranty, use:

Labor Operation

Description

Failed Object

Fault/Reason Code

Location Code

Warranty Type

Repair/Action Code

Labor Time

8345303*

Reposition Liftgate Lock Cylinder Wave Washer And Adjust Lock Rod

83453

40

0

01

05

0.4 hr

*This labor operation number is for bulletin use only only. This number will not be published in STM.