Removal Procedure

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Remove the rear window from the vehicle.
Remove the third pillar trim panels. Refer to Garnish Molding Replacement - Rear Door Upper .
Remove the plastic push pins (1) from the upper garnish molding.
Pull down the upper garnish molding in order to disengage the retaining clips.

Fig 1: Rear Upper Garnish Molding (Avalanche/Escalade EXT)
Courtesy of GENERAL MOTORS CORP.
Disconnect the electrical connector, if equipped.