2009 Cadillac STS-V Owner's Manual - Page 295

Stability control activates when the computer senses a difference between the intended path and the direction the vehicle is actually traveling. Stability control automatically adjusts the front road wheel steering angle, modifies the suspension stiffness, and selectively applies braking pressure at any one of the vehicle's brakes to help maintain directional control of the vehicle. When the system activates, a STABILITY SYS ACTIVE message displays on the Driver Information Center (DIC). See DIC Warnings and Messages on page 3-79. It is normal to hear a noise or feel vibration in the brake pedal when the system is working. Continue to steer the vehicle in the intended direction. If cruise control is engaged when Enhanced StabiliTrak activates, the cruise control will automatically disengage. Cruise Control may be re-engaged when road conditions allow. See Cruise Control on page 3-16, or Adaptive Cruise Control on page 3-20 for more information. Enhanced StabiliTrak comes on automatically in the Stability Touring Mode, when the vehicle is started. The Stability Touring Mode is recommended for normal driving. Enhanced StabiliTrak also has Stability Competitive Mode that is turned on by pressing the Traction Control (TC) button twice quickly. This mode is designed to be used by the performance conscious driver who desires less stability control intervention. See Competitive Driving Mode on page 4-11. When the Stability Control Competitive Mode has been activated, traction control operates in competitive mode and cannot be turned off. The STABILITY COMPETITIVE MODE message will be displayed on the DIC. See DIC Warnings and Messages on page 3-79. When operating the vehicle in the Stability Competitive Mode, the system provides less stability control intervention. Driving should be adjusted accordingly. When the Stability Competitive Mode has been selected, the Active Steering and Magnetic Ride Control Touring Mode is not available. These systems are automatically changed to the Performance Mode, providing more response to road conditions and quicker steering response. For more information, see "Active Steering and Magnetic Ride Control Mode" in the Index of the vehicle's Navigation Manual. To assist with directional control of the vehicle, always leave the system on. Stability control can be turned off however, by using the TC button. See Traction Control System (TCS) on page 4-10. The STABILITY SYS OFF message will be displayed on the DIC. See DIC Warnings and Messages on page 3-79. 4-7