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Steering Wheel Controls Schematics

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Steering Wheel & Tailgate Controls Schematic - Pontiac
GM824480Courtesy of GENERAL MOTORS CORP.
Fig 2: Steering Wheel Controls Schematic - Buick
GM824278Courtesy of GENERAL MOTORS CORP.