i cant get the rear glass to lock on my trailblazer its on 06 4.2 ext,just noticed this today when i opened it when it was supposed to be locked and set the alarm off![sm=WTFsgign.gif]any info most welcome!...Darren

 

Subject:
Liftgate Glass Will Not Lock Unless Lock Is Pressed A Second Time - keywords actuator adjust button door end hatch latch link lock rear release rod unlock #PIT3999A - (01/08/2007)

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Models:
2004-2007 Buick Rainier[/align][align=left]




2002-2007 Chevrolet Trailblazer, Trailblazer EXT and Trailblazer SS[/align][align=left]




2002-2007 GMC Envoy, Envoy XL, and Envoy Denali[/align][align=left]




2002-2004 Oldsmobile Bravada[/align][align=left]




2005-2007 Saab 9-7x [/align]

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This PI was updated to include 2007 model year vehicles. Please discard PIT3999.
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The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Customers may comment that the rear liftgate glass will not lock when using the key fob or door switch unless the lock button is pressed a second time. All other doors will lock normally. This could be the result of the liftgate glass lock rod not adjusted correctly. This lock rod travels from the liftgate lock actuator to the glass release push-button cylinder.
Recommendation/Instructions:
Remove the inside rear liftgate trim panel. Disconnect the threaded lock rod clip at the end of the push-button glass release and rotate this clip 1 complete turn at a time making the lock rod longer. This will be the only threaded lock rod visible when the trim panel is removed and the liftgate is raised.
Note:For the rear glass to release, the rear liftgate latch must be in the closed position. For test purposes only, this latch can be made closed to make this lock rod adjustment.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.