S3 Transmission Shift Lever
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
The S3 Transmission Shift Lever allows the selection of Park, Reverse, Neutral, Drive, and Driver Shift Control Mode. The S3 Transmission Shift Lever has a Hall Effect switch in series with the signal circuit from the K9 Body Control Module and S2 Transmission Manual Shift Switch.