Question about 2004 GMC Envoy

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Liftgate on my 2005 GMC ENVOY will not unlock with the remote

I have checked fuses and everything checks out OK. HELP............Thanks

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  • GMC Master
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There could be a broken wire in the harness that passes from the body into the tailgate, this located at the top of the tailgate.

Posted on Sep 09, 2010

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1 Answer

Liftgate hydraulics stopped working 2003 GMC Envoy SLT


Yes this is electrical. Start by checking the fuses.

Jul 19, 2008 | 2003 GMC Envoy

1 Answer

Envoy hatch lock


There is a known TSB for this....
#07-08-52-003: 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 - (Sep 13, 2007)


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.





• The wave washer on the liftgate lock cylinder may be out of position with the cup side down.

• Excessive movement or slack in the lock rods at the liftgate bell crank assembly.





• The liftgate lock cylinder pawl 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.

Verify the customer's condition.

Open the liftgate.

Remove the upper liftgate garnish molding.

Remove the rear liftgate trim panel.

Remove the cylinder lock rod from the threaded lock rod retaining clip.

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.

Remove the C-clip from the rear liftgate lock cylinder push button and remove the wave washer.

Install the wave washer with the cup side up.

Position the wave washer with the curved edges of the wave spring parallel to the tabs on the lock cylinder shaft.

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.

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.

Position the lock cylinder pawl to the full clockwise position.

Pull up on the cylinder lock rod to remove any slack in the bell crank.

Install the cylinder lock rod into the threaded lock rod retaining clip while removing any slack from the lock rod linkage.

Close the lock rod retainer clip.

Close the liftgate assembly.

Open the liftgate glass while keeping the liftgate closed.

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.

Verify that the customer's condition has been corrected.

Install the rear liftgate trim panel.

Install the upper liftgate garnish molding.

Apr 14, 2014 | GMC Envoy XL Cars & Trucks

1 Answer

Is there a common fuse that runs rear wiper and rear defrost


No there is no common fuse, but the Liftgate Module controls both of these functions. Check fuse #3 in the rear fuse box.

Apr 12, 2014 | 2005 GMC Envoy

1 Answer

Rear liftglass won't lock


#07-08-52-003: 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 - (Sep 13, 2007)


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.





• The wave washer on the liftgate lock cylinder may be out of position with the cup side down.

• Excessive movement or slack in the lock rods at the liftgate bell crank assembly.





• The liftgate lock cylinder pawl 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.

Verify the customer's condition.

Open the liftgate.

Remove the upper liftgate garnish molding.

Remove the rear liftgate trim panel.

Remove the cylinder lock rod from the threaded lock rod retaining clip.

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.

Remove the C-clip from the rear liftgate lock cylinder push button and remove the wave washer.

Install the wave washer with the cup side up.

Position the wave washer with the curved edges of the wave spring parallel to the tabs on the lock cylinder shaft.

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.

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.

Position the lock cylinder pawl to the full clockwise position.

Pull up on the cylinder lock rod to remove any slack in the bell crank.

Install the cylinder lock rod into the threaded lock rod retaining clip while removing any slack from the lock rod linkage.

Close the lock rod retainer clip.

Close the liftgate assembly.

Open the liftgate glass while keeping the liftgate closed.

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.

Verify that the customer's condition has been corrected.

Install the rear liftgate trim panel.

Install the upper liftgate garnish molding.

Jan 17, 2012 | 2009 Saab 9-7X

1 Answer

Have a 2005 envoy and just outta of the blue my whole driver side door nothing works windows lock nothing on the driver side but everything else works on the other doors need some help what could be the...


Check fuse #10 in the rear fuse panel, if it is OK, the problem could be a bad Driver's Door Module (DDM) or a break in the wiring harness that passes between the body and the door.

Oct 25, 2011 | 2005 GMC Envoy

1 Answer

Tailgate on a 2002 trailblazer will not open. unlock button wont let it open. what fuse do I need to check or do I open from inside?


  • There was a Technical Service Bulletin concerning this.

  • Bulletin No.: 03-08-52-002
  • Date: March 27, 2003

  • Technical - Subject:
  • Remote Keyless Entry Inoperative (Reprogram Liftgate Module)
  • Models:
  • 2002-2003 Chevrolet TrailBlazer, TrailBlazer EXT
  • 2002-2003 GMC Envoy, Envoy XL
  • 2002-2003 Oldsmobile Bravada
  • Condition
  • Some customers may comment that the Remote Keyless Entry (RKE) is inoperative at times.

  • Cause
  • An anomaly has been identified with the software in the Liftgate Module (RKE functions). The Liftgate Module software is affected when the temperature is approximately 40°C (104°F).

  • Correction
  • Using normal SPS reprogramming procedures, reprogram the LGM Liftgate module. The information was released on TIS version 2.75 or newer broadcast in March 2003.

  • There is a fuse block under the rear seat on the drivers side. Fuse # 3 and # ^ are the ones you will check for the Lift Gate.
  • Often the problem can be in the harness going to the module.
  • Sometimes the module needs replaced and then reprogrammed.
  • Here is a copy of your owners manual for free http://www.extendedgmwarranty.com/owners-manual/chevrolet/2002-Chevrolet-TrailBlazer.pdf
  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.
Regards, Tony

Oct 01, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

2003 envoy liftgate wont lock with fob all other doors will lock


Try looking at the fuse box under the rear seat. There is a fuse just for the liftgate, location will either be in your owners manual or on the bottom of the fuse box top.

Also, another common failure is the wiring harness at the top of the door. Remove the rubber grommet and take a look at the wiring right there, look for chaffing and repair if needed.

The last thing to look at IF the other 2 check out would possibly be a new liftgate module.

Jun 02, 2011 | 2003 GMC Envoy

1 Answer

I have a 2002 envoy and the back hatch will not come open. The locks, when pressed sound like they are unlocking, but the door will not open. any advice on how to find out what is going on?


Try pulling the rear hatch panel and move the unlock mechanism with a screw driver to get it to open.

If that does Not work:

Check for broken wires in the liftgate boot. Test the liftgate module powers and ground on the 4 terminal connector: 12 volts on the Orange wires in terminals A and C, ground on the Black wire in terminal D. The liftgate module is located inside the gate.

Dec 31, 2010 | 2002 GMC Envoy

2 Answers

Programing keyless remote


To Program a new remote you must get in your vehicle, close all doors hold your unlock button down.while holding the button down turn your key on and off two times.at that time your locks will all cycle.Then with your keyless remote hold your lock and unlock buttons till the locks cycle .

Aug 01, 2008 | 2005 GMC Envoy

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