Installation 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.

Install the wheelhouse panel to the wheelhouse.
Install the top clips (2) retaining the harness to the top of the wheelhouse panel.
Install the retainers for Avalanche only.
Install the push-in retainers to the wheelhouse panel.

Fig 1: Installing Wheelhouse Panel
Courtesy of GENERAL MOTORS CORP.