Installation Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Install the bracket to the vehicle.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the bracket retaining nuts.
Tighten

Tighten the retaining nuts to 25 N.m (18 lb ft).
Install the rear wheel steering control module (2) o the bracket. Refer to Rear Wheel Steering Control Module Replacement .
Perform a learn alignment. Refer to MEASURING WHEEL ALIGNMENT (WITH REAR WHEEL STEERING) or MEASURING WHEEL ALIGNMENT (WITHOUT REAR WHEEL STEERING) in Wheel Alignment.

Fig 1: Installing Rear Wheel Steering Control Module
Courtesy of GENERAL MOTORS CORP.