Circuit/System Description
WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
The steering wheel controls are divided into a right-hand set and left-hand set. The right - hand switch communicates with the IPC (Instrument Panel Cluster) through serial data and provides input from the rear left - hand switch and rear right - hand switch. The IPC identifies the switch selection and activates the feature.