Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

J 24402-A Cold Knife Glass Sealant Remover
J 39040 Quarter Window Remover
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

CAUTION: If a window is cracked but still intact, crisscross the window with masking tape in order to reduce the risk of damage or personal injury.

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

Remove the window lower garnish molding. Refer to MOLDING REPLACEMENT-REAR WINDOW LOWER .
Remove both rear seat headrests (extended cab). Refer to HEAD RESTRAINT REPLACEMENT .
Lower rear seat back.
CAUTION: If broken glass falls into the defroster outlets, It can be blown into the passenger compartment and cause personal Injury.
Cover to protect the following parts from broken glass:
1. Upper dash pad
2. Defroster outlets and A/C outlets
3. Seats and carpeting
CAUTION: When working with any type of glass or sheet metal with exposed or rough edges, wear approved safety glasses and gloves in order to reduce the chance of personal injury.

IMPORTANT: Keep the cutting edge of the tool against the window.
This will allow the urethane adhesive to be separated from the window.
- Leave a base of urethane on the pinchweld flange.
- The only suitable lubrication is clear water.
- Use J 24402-A, J 39040 or equivalent in order to remove the window.
Fig 1: Removing Window Using J 24402-A
Courtesy of GENERAL MOTORS CORP.
Open the window, if equipped.
With the aid of an assistant, remove the window from the opening.

Fig 2: Removing Rear Window - Pickup
Courtesy of GENERAL MOTORS CORP.