Installation 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.

Install the hose.
Install the hose to clip.
Install the hose to module nozzle.

Fig 1: Sunroof Drain Hose (Front)

Courtesy of GENERAL MOTORS CORP.

Be sure the seal is fully seated to plenum and hose is bottomed out against nozzle.
Inspect for kinks in the hose.
Push up the corner of headliner.
Install the sunshades. Refer to SUNSHADE REPLACEMENT .
Install the garnish molding/windshield pillar. Refer to GARNISH MOLDING REPLACEMENT - WINDSHIELD PILLAR .