Winter Drive Program
WARNING: This page does not describe the selected car, but rather 43 other vehicles, including the 2006 BMW M3, 2006 BMW 330Ci, 2006 BMW 325Ci, 2005 BMW M3, and 2005 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.
Wheel slip is calculated by the GS 20 based on wheel rotation data provided by the traction control system via CAN bus. The GS 20 modifies shift characteristics to match winter mode for better traction. When active, the transmission will start in second gear and the shift points are lowered. The purpose of this program is to improve the driveability of the vehicle with slippery road conditions.