Steering Wheel Secondary/Configurable Control Schematics
WARNING: This page is about a different car, the 2008 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Steering Wheel Secondary/Configurable Control Schematics (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Steering Wheel Secondary/Configurable Control Schematics (2 Of 2)