2013 Buick Regal Owner Manual - Page 236

9-40 Driving and Operating Sport: Use for normal city and long-distance highway driving. This setting provides precise, comfortable handling. Press and release the SPORT button and the light on the button comes on. Press the button again and the system returns to the Standard mode. GS: Use where personal preference or road conditions demand more control. This setting provides responsive, controlled steering and handling. Press and release the GS button. The light on the button comes on, and the appropriate message displays on the DIC. Press the button again. The system returns to the Standard mode and the appropriate message displays on the DIC. IDCS automatically comes on in the Standard mode when the vehicle is started. When the Sport and GS modes are turned off, the system returns to the Standard mode. Interactive Drive Control System (GS Only) Standard Mode . The shock absorbers allow a normal ride. The powertrain reacts normally to the accelerator pedal. Power steering assistance is normal. The shock absorbers stiffen to provide better contact with the road surface. The powertrain reacts normally to the accelerator pedal. Power steering assistance is normal. . . Sport Mode . . The vehicle may have the Interactive Drive Control System (IDCS). IDCS adapts to the preference of the driver within one of three driving modes: Standard: Default mode used for normal and long-distance highway driving. This setting provides a smooth soft ride. .