How do I remove the upper molding on liftgate of my chevy trailblazer

It is located behind the right rear quarter panel , In the back right of the interior !
Remove the right rear quarter trim panel. Refer to Rear Quarter Trim Panel Replacement - Right Side in Interior Trim.
Removal Procedure

1. Remove the rear seat. Refer to Rear Number 2 Seat Replacement or Rear Number 2 50-50 Seat Replacement in Seats.
2. Remove the Third Pillar trim panel. Refer to Third Pillar Trim Replacement .
3. Remove the garnish molding. Refer to Body Rear Corner Garnish Molding Replacement .
4. Remove the door sill plate. Refer to Liftgate Door Sill Plate Replacement .
5. Remove the quarter panel trim screws.

A lot involved in this but not to difficult !

1. Remove the rear door sill trim plate. Refer to Front Side Door Sill Plate Replacement or to Rear Side Door Sill Plate Replacement .
2. Remove the lower rear seat belt cover and bolt.
3. Remove the trim panel from the vehicle.

Remove the sill plate. Firmly pull the sill plate up and out from the retainers.
Remove the sill plate from the vehicle. Start from the front of the door sill. Use a flat-bladed tool in order to pry the door sill plate.
Rear Side Door Sill Trim Plate Replacement
Use a flat-bladed tool in order to pry the door sill plate. Remove the sill plate from the vehicle.
Body Rear Corner Garnish Molding Replacement
Remove the rear upper garnish molding. Refer to Rear Upper Garnish Molding Replacement .
Pull down on the upper corners of the garnish molding in order to disengage the retaining clips. Pull in order to disengage the remaining retaining clips. Remove the rear corner garnish molding from the vehicle. Inspect the rear corner garnish molding for broken or missing retaining clips. Replace the retaining clips as needed.
Good Luck ! Fun job !!!!!

you have a cut or bad connection where the wires come from the inside of car and causing a short,so you might have to open the outer cover surrounding the wires,.,,,,,,adrian

Have you checked the fuse? If so, the module is located behind the left rear trim panel. Remove the panel to access. Below is a diagram of the trim panel and location of the module in BLUE>
Preliminary Procedures

1. Move the rear seat to the full forward position.
2. Remove the rear number?2 seat . Refer to 3rd Row Seat Removal and Installation.
3. Remove the rear quarter upper trim panel. Refer to Quarter Upper Trim Panel Replacement.
4. Disconnect the liftgate actuator rod from the liftgate. Refer to Liftgate Actuator Rod Replacement.
5. Disconnect the rear seat number 2 shoulder belt anchor bolt. Refer to Rear Seat Number 2 Retractor Side Belt Replacement.
6. Remove the liftgate door sill plate. Refer to Liftgate Door Sill Plate Replacement.

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.

#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.

1. Open liftgate.

Fig. 12

1. Remove two push pin fasteners per side at the liftgate tower area (Fig. 12).
2. Hoist and support vehicle with safety stands, as necessary.

Fig. 13

1. Disconnect the park assist wire connector under the vehicle and the push pin fasteners attaching wire harness under the vehicle (Fig. 13)
2. Remove the four push pin fasteners attaching rear fascia to reinforcement bumper.
3. Remove two screws (each side) attaching fascia to rear fascia bracket in the wheelhouse.
4. Remove the screw on each side attaching the upper fascia in the tail lamp bucket area.
5. Remove rear fascia from vehicle by lifting sides of fascia up and outboard to release from rear fascia brackets.
6. Place fascia on a clean surface.

Fig. 14

1. Remove park assist sensors, if necessary (Fig. 14).

Fig. 15

1. Remove spring clips attaching upper and lower fascia together (Fig. 15).
2. Using a trim stick release locking tabs and separate the upper and lower fascia.

Fig. 16
Fig. 17

1. Remove move the bright chrome molding from the upper fascia (Fig. 16). Using a trim stick, starting at the out edge of the fascia release the locking tabs (Fig. 17). Grip the molding and pull outward from the fascia while releasing the locking tabs.
2. Remove molding from fascia.

INSTALLATION

1. Place bright chrome molding in position on the upper fascia.

Here you go

Hello and welcome. all these functions run off the liftgate module. the liftgate module is located in the rear hatch. also the replacement liftgate module has to be programmed with software for it to function correctly

Disconnect the electrical connectors (3) from the module as necessary.

Remove the bolts that retain the module to the liftgate.

Remove the module from the liftgate.

Tail Lamp Assembly Removal & Installation To Remove:
Tail lamp assembly removal and installation

1. Remove the tail lamp assembly retaining screws from the body.
2. Release the locking pins by pulling the assembly directly rearward.
3. Disconnect the tail lamp assembly connector.
4. Remove the tail lamp circuit board from the assembly.

To Install:

1. Install the tail lamp circuit board into the assembly.
2. Connect the tail lamp assembly connector.
3. Push the assembly directly forward into the opening to engage the locking pins.
4. Install the tail lamp assembly retaining screws into the body. Torque the screws to 17 in-lb (1.9 Nm).

High Mount Stop Lamp Removal & Installation To Remove:
CAUTION
Raising the liftgate with the liftgate window open can damage the high mount stop lamp, liftgate hinges, and the liftgate window.

1. Raise the liftgate.
2. Lower the rear of the headliner by removing the rear headliner pins.
3. Disconnect the high mount stop lamp connector.
4. Remove the high mount stop lamp grommet from the body.
5. Lower the liftgate.
6. Open the liftgate window.
7. Remove the high mount stop lamp retaining screws from the liftgate window molding.
8. Remove the high mount stop lamp from the vehicle.

To Install:

1. Place the high mount stop lamp onto the vehicle.
2. Install the high mount stop lamp retaining screws into the liftgate window molding. Torque the screws to 22 in-lb (2.5 Nm).
3. Close the liftgate window.
4. Lift the liftgate.
5. Install the high mount stop lamp grommet into the body.
6. Connect the high mount stop lamp connector.
7. Install the rear of the headliner by inserting the retaining pins.

Pretty straight forward.....here are the steps:

Please don't forget to rate--

Rear Window Wiper Motor Removal & Installation To Remove:

1. Disconnect and isolate the negative battery cable.
2. Remove the rear wiper arm.
3. Open the liftgate.
4. Perform the following to remove the liftgate trim panel.
   • If equipped, remove the lift motor link
   • Remove the upper frame molding
   • Remove assist handle screws
   • Disengage the hidden clips around perimeter of liftgate trim
   • Disconnect the electrical connectors.
5. Disconnect the wire connector from the wiper motor.
6. Remove the wiper motor mounting screws.
7. Remove the wiper motor.

To Install:

1. Position the wiper motor in the liftgate.
2. Install the wiper motor mounting screws.
3. Connect the wiring connector.
4. Install the liftgate trim panel.
5. Close the liftgate.

1. Remove the rear pivot arm; refer to Pivot Arm—Rear .
2. Remove rear pivot arm.
   1. Lift the pivot arm nut cover.
   1. Remove the nut.
   1. Remove the pivot arm.

1. Remove the liftgate door trim panel; refer to Section 501-05 . Remove the (A) liftgate handle to liftgate screws and the (B) liftgate handle. Remove the liftgate trim panel screw access plug. Remove the screw.
2. Remove the liftgate door trim panel.
   1. Use Windshield and Molding/Trim Removal Kit to remove the liftgate door trim panel from the liftgate window opening.
   1. Push the liftgate door trim panel toward the top of the liftgate and remove the liftgate trim panel.

1. Position the watershield aside to gain access to the rear wiper motor.

1. Remove rear wiper motor.
   • Disconnect electrical connector.
   • Remove three retaining bolts.
   • Remove rear wiper motor.

good luck.