For 1990-2009 cars

## Liftgate Window Replacement Sedan

#### Special Tools

• | Urethane Adhesive Kit GM P/N 12346392 or Equivalent

• | Isopropyl Alcohol or equivalent

• | Cartridge-Type Caulking Gun

• | Commercial-Type Utility Knife

• | Razor Blade Scraper

• | Suction Cups

• | Plastic Paddle

### Removal Procedure

Caution: Refer to Cracked Window Caution in the Preface section.

Important: Before cutting out a stationary window, apply a double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

1. Open the liftgate.
2. Remove the liftgate trim. Refer to Liftgate Trim Panel Replacement .
3. Disconnect the electrical connectors from the liftgate window defogger bus bar.
4. Remove the rear window wiper arm. Refer to Rear Window Wiper Arm Replacement .
5. Remove the wiper motor assembly from the liftgate glass.

Caution: Refer to Glass and Sheet Metal Handling Caution in the Preface section.

Caution: Refer to Defroster Outlet Caution in the Preface section.

6. Cover the following parts to protect from broken glass:

• | Upper dash pad

• | Defroster outlets and A/C outlets

• | Seats and carpeting

Important: Keep the cutting edge of the tool against the window.

7. Remove the window from the urethane adhesive.

• | Leave a base of urethane approximately 2 mm (0.078 in) on the pinch-weld flange.

• | The only suitable lubrication is clear water.

• | Use a cutting tool from inside of liftgate to remove the glass.

8. If necessary, use a long utility knife or similar tool to remove the bottom corners of the window from the urethane adhesive.
9. With the aid of an assistant, remove the window (1) from the vehicle.

### Installation Procedure

1. Install the liftgate window into the opening. Refer to Adhesive Installation of Liftgate Windows .
2. Install the wiper motor assembly.
3. Install the rear window wiper arm. Refer to Rear Window Wiper Arm Replacement .
4. Connect the liftgate window defogger electrical connectors to the bus bar.
5. Install the liftgate trim. Refer to Liftgate Trim Panel Replacement .
6. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.
7. Close the liftgate.

## Liftgate Window Replacement Coupe

#### Special Tools

• | Urethane Adhesive Kit GM P/N 12346392 or Equivalent

• | Isopropyl Alcohol or equivalent

• | Cartridge-Type Caulking Gun

• | Commercial-Type Utility Knife

• | Razor Blade Scraper

• | Suction Cups

• | Plastic Paddle

### Removal Procedure

Caution: Refer to Cracked Window Caution in the Preface section.

Important: Before cutting out a stationary window, apply a double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

1. Open the liftgate.
2. Remove the liftgate trim. Refer to Liftgate Trim Panel Replacement .
3. Disconnect the electrical connectors from the liftgate window defogger bus bar.
4. Remove the rear window wiper arm. Refer to Rear Window Wiper Arm Replacement .
5. Remove the wiper motor assembly from the liftgate glass.

Caution: Refer to Glass and Sheet Metal Handling Caution in the Preface section.

Caution: Refer to Defroster Outlet Caution in the Preface section.

6. Cover the following parts to protect from broken glass:

• | Upper dash pad

• | Defroster outlets and A/C outlets

• | Seats and carpeting

Important: Keep the cutting edge of the tool against the window.

7. Remove the window from the urethane adhesive.

• | Leave a base of urethane approximately 2 mm (0.078 in) on the pinch-weld flange.

• | The only suitable lubrication is clear water.

• | Use a cutting tool from inside of liftgate to remove the glass.

8. If necessary, use a long utility knife or similar tool to remove the bottom corners of the window from the urethane adhesive.
9. With the aid of an assistant, remove the window (1) from the vehicle.

### Installation Procedure

1. Install the liftgate window into the opening. Refer to Adhesive Installation of Liftgate Windows .
2. Install the wiper motor assembly.
3. Install the rear window wiper arm. Refer to Rear Window Wiper Arm Replacement .
4. Connect the liftgate window defogger electrical connectors to the bus bar.
5. Install the liftgate trim. Refer to Liftgate Trim Panel Replacement .
6. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.
7. Close the liftgate.

## Liftgate Window Replacement CoupeRe-Sealed

### Removal Procedure

1. Remove the tailgate window. Refer to Liftgate Window Replacement .

Important: Use existing cartridge tip: 8 x 13 mm (0.3 x 0.5 in).

2. Reseal the liftgate window.

• | Apply adhesive bead.

• | Cut into the tip of the cartridge in such a way that a bead of adhesive approximately 13 mm (0.5 in) thick.

### Installation Procedure

Install the liftgate window. Refer to Liftgate Window Replacement .