Need to remove rear door panel to fix window - 2000 Cadillac DeVille

to remove door trim you have to disconnect negative battery cable.then remove two screws attaching arm rest to door trim.remove arm rest it held in place by front and rear hooks that fit into slots in door trim.to release the hooks grasp the arm rest with both hands push it towards thr door pull up on the side of the arm rest facing door.remove four speaker grille mounting screws and the grille.then remove door trim panel screwss from bottom edge of the panel.remove the three remote control plate screws from the plate and the single screw in the rear edge of the door.then lift up on the door trim panel to release the molding from the top edge of the door then slide the panel forward to clear the latch release handle and down to clear the lock rod knob.if job look to difficult let a body shop fix.removing window door motor need tools to drill out rivets and reinstall rivots you need special tools to fix window motor and regulator.

Once you get the door panel off you can easily see how to remove the window which is riveted to the window regulator..Here are instructions for determining the rear door in a Taurus.

1. • Pluck the window switch and lock switch from the rear door panel with the trim tool. Pull the wiring plugs out of each switch manually before setting the switches aside.
   • 2Remove the rear door panel retaining screws with either the Phillips screwdriver or socket set, depending on the year, make and model of your vehicle. If the panel will not lift off the rear door at this time, you may need to pry the door panel trim pins out of the door with the trim tool before removing the panel by hand. (This too will depend on the year, make and model of your vehicle.)
     
   • 3Raise the rear door window glass by hand and secure it with packing tape in the fully upright position to prevent unintended glass movement. Manually pull the wiring plug out of the rear window motor.
     
   • 4Remove the rear window motor retaining bolts with the socket set. Pull the old rear window motor out of the door through the door access hole. Position the new rear window motor in the door and bolt it in place with the socket set.
     
   • 5Reinstall the rear door panel on the rear door by reversing the door panel removal steps. Make sure to remove the tape from the window when done before you attempt to open the window.
     

REMOVAL

1. Remove the watershield. (Refer to 23 - BODY/DOOR - FRONT/WATERSHIELD - REMOVAL)

2. Remove door glass retaining clips and secure the window in the up position using masking tape or equivalent(FRONT DOOR GLASS CLIPS).

3. Disconnect wire connector from power window motor, if equipped.

4. Loosen screws attaching front and rear window guide rails to inner door panel (FRONT DOOR MANUAL WINDOW REGULATOR - TYPICAL).

5. Remove screw heads on guide rails from key hole slots in inner door panel.

6. Loosen screws attaching regulator to inner door panel.

7. Remove regulator from inner door panel.

8. Extract rear guide rail through inner door panel rear access hole (FRONT DOOR POWER WINDOW - TYPICAL).

9. Extract front guide rail through front access hole.

INSTALLATION

1. Insert front guide rail through front access hole.

2. Insert rear guide rail through rear access hole.

3. Place window regulator in position on inner door panel.

4. Place screw heads on guide rails in position through key hole slots in inner door panel.

5. Tighten screws to attach front and rear guide rails to inner door panel.

6. Connect wire connector into power window motor, if equipped.

7. Install door glass.

8. Verify door glass alignment and operation.

9. Install sound shield and door trim panel

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Removal & Installation
Motor - Front Door

1. Before servicing the vehicle, refer to the Precautions section.
2. Remove the window control switch
3. Remove the front door trim panel and watershield.
4. Tape the window in the full UP position.
5. Disconnect the window motor electrical connector.
   NOTE Support the window motor while removing the window motor retaining screws.
   
6. Remove the window motor bolts and remove the motor.
7. To install, reverse the removal procedure.

Rear Door

1. Before servicing the vehicle, refer to the Precautions section.
2. Remove the window control switch.
3. Remove the rear door trim panel and the rear door trim watershield.
4. Remove the door speakers.
5. Tape the window glass in the full UP position.
6. Disconnect the window regulator electric drive.
7. Position the connector for the window regulator electric drive inside of the door.
8. Remove the bolts.
9. Separate the window regulator electric drive from the rear door window regulator.
10. Remove the window regulator electric drive from the door.
11. To install, reverse the removal procedure.

Motor & Regulator



Fig. Front Door Trim Panel




Fig. Rear Door Trim Panel-Crew Cab


Regulator - Power Windows



Fig. Window regulator arm nuts




Fig. Window regulator bolts

1. Before servicing the vehicle, refer to the Precautions section.
2. Remove the window control switch.
3. Remove the door trim panel.
4. Remove the door speaker.
5. Remove the door watershield.
   NOTE Do not remove the window glass from the door.
   
6. Remove the window glass from the window regulator.
7. Tape the window glass in the full UP position.
8. Disconnect the window motor electrical connector (power windows only).
9. Loosen the window regulator arm nuts and pull the arm from the mounting position.
10. Loosen the bolts and remove the window regulator.
11. To install, reverse the removal procedure.

Hope helped with this. Good luck.

On the inside trim, you can remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. Pull back the weather seal and you'll see the innards of the door

please rate as solved if this is what you need. You will need to borrow a heavy duty riveter from autozone or wherever you buy the lock cylinder from.


Removal

1. NOTE: The rear door window glass must be completely raised.
   Disconnect the battery ground cable. For additional information, refer to Section 414-01 .

1. Remove the rear door trim panel. For additional information, refer to Section 501-05 .

Trim Panel —Rear Door, Expedition Removal

1. Remove the power window switchplate (14524).

1. Disconnect the electrical connector.

1. Remove the rear door handle trim cover.

1. Remove the rear inside door handle.
   • Remove the door handle bolt.

1. Remove the rear door trim panel screws at bottom of panel.

1. CAUTION: To avoid damage to the rear door trim panel, do not pull directly outward.
   Lift upward and then outward to remove the rear door trim panel (27406).

1. Remove the rear door watershield.

1. Disconnect the power door lock actuator electrical connector.

1. Drill out the power door lock actuator rivet.

1. Remove and discard the screws.

1. Remove the power door lock actuator.
   • Disconnect the power door lock actuator rod.

Installation

1. NOTE: Use new screws when installing the rear door latch.
   To install, reverse the removal procedure.
   • Use Heavy Duty Riveter to install the new rivet.

Window Regulator, Rear Door, Explorer Removal

1. Remove the rear door trim panel and watershield. Refer to Section 01-05B .

Trim Panel, Rear Door, Explorer, Hi-Series Four-Door Removal and Installation

1. Remove the two screws retaining the rear door trim panel (27406) located above the door handle.

1. Remove trim cup at the door handle using a screwdriver or sharp object. Retention nibs will flex for easy removal.

1. To remove window regulator switch plate (14524) , use notch located at lower end of plate using a screwdriver to lift and remove.

1. Remove window regulator switch plate from rear door trim panel pulling wire harness from rear door trim panel .

1. From bottom of window regulator switch plate , remove two screws and disconnect connector from window regulator control switch (14529) .

1. At each plastic clip location, pry the rear door trim panel away from the door inner panel using the door trim panel removing tool from Rotunda Moulding/Trim Kit 107-00401 or equivalent.

1. Remove panel, lift slightly to remove flange at the top of rear door trim panel from trough in the glass weatherstrip. For installation, follow removal procedures in reverse order. Replace any bent, damaged or missing plastic clips on the rear door trim panel to the door inner panel, firmly loading clips into slots provided on rear door trim panel .
   
   

1. If equipped with power windows, disconnect the wire from the regulator.

1. Remove the rear door window glass as described in this section.

1. Remove the window guide, if equipped, (nuts and washers). Remove guide from door belt opening.

1. Remove three 1/4-inch rivets attaching motor bracket (electric) to inner panel and two 1/4-inch rivets attaching regulator lower bracket to inner panel. Use drift punch to knock out center pins for each rivet. NOTE: Use care not to enlarge sheet metal holes in the door inner panel when drilling.
   

1. Using a 1/4-inch diameter drill, drill out the remainder of the rivet.

1. Remove two upper regulator attaching nuts.

1. Remove regulator from the front door (20125) .

Installation

1. Lubricate regulator mechanism with Multi-Purpose Grease D0AZ-19584-AA or equivalent.

1. Install regulator into access hole in inner panel.

1. Position regulator using upper regulator studs and tabs on motor mounting bracket (electric) or cup mounting plate (manual).

1. Install rivets attaching regulator to door inner panel (1/4-20 x 1/2-inch bolt and 1/4-20 nut and washer assemblies or equivalent metric fasteners may be used as alternates).

1. Install two upper regulator attachment nuts.

1. Install door glass as outlined under Door Glass Installation.

1. Adjust glass as outlined under Adjustments .

1. Reconnect wire to regulator, if equipped.

1. Check operation of window regulator.

1. Install door watershield and trim panel. Refer to Section 01-05B .

Removal and Installation

1. Remove the rear door trim panel. For additional information, refer to Section 501-05 .

1. Remove the watershield.

1. Remove the interior weatherstrip.

1. Remove the exterior-weatherstrip.

1. Remove the nut and the rear window stabilizer.

1. CAUTION: Prior to removing the rivet center pins, place suitable support between the door outer panel and the glass to stabilize the glass.
   NOTE: Lower the window to access the rivets.
   Remove the two rivets retaining the rear door window glass to the rear door window glass run and bracket.

1. Remove the rear door window glass.

1. To install, reverse the removal procedure.

SECTION 501-05: Interior Trim and Ornamentation 2000 Taurus/Sable Workshop Manual REMOVAL AND INSTALLATION Rear Door Trim Panel Removal and Installation

1. Remove the rear door trim panel screws.

1. NOTE: The rear door trim panel has eight two-part pin-type retainers. The male part of the retainer will remain with the trim panel and the female part will remain with the door.
   NOTE: To release the door trim panel pin-type retainers, first pull outward on the bottom of the door trim panel.
   Remove the rear door trim panel.
   • Disconnect the window regulator control switch electrical connector.

1. To install, reverse the removal procedure.