2010 Cadillac STS Owner's Manual - Page 325

StabiliTrak comes on automatically whenever the vehicle is started. To help assist with directional control of the vehicle, always leave the system on. StabiliTrak can be turned off, however, by using the Traction Control System (TCS)/StabiliTrak button. See Traction Control System (TCS) on page 5‑9. If cruise control is being used when StabiliTrak activates, it will automatically disengage. Cruise control may be reengaged when road conditions allow. See Cruise Control on page 4‑12 or Adaptive Cruise Control on page 4‑15 for more information. 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 4‑76. 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. Re-engage cruise control when road conditions allow. See Cruise Control on page 4‑12, or Adaptive Cruise Control on page 4‑15 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® All‐wheel‐drive (AWD) vehicles with the Active Steering with Enhanced StabiliTrak option have an enhanced computer controlled vehicle stability system that assists with directional control of the vehicle in difficult driving conditions. This system coordinates automatic control of the Active Steering System, the Magnetic Ride Control Suspension System, and the Brake Control System for better vehicle performance. During extreme cold temperature conditions, the active steering function may be temporarily disabled which may cause the steering wheel to be offset from the center position while driving straight. This is normal operation and the vehicle is safe to drive in these cases. 5-7