2005 Pontiac Grand Prix Owner's Manual - Page 254

StabiliTrak® Plus System The vehicle may have a vehicle stability enhancement system called StabiliTrak® Plus. It is an advanced computer controlled system that assists with directional control of the vehicle in difficult driving conditions. StabiliTrak® Plus comes on whenever the vehicle is started. It activates when the computer senses a discrepancy between the intended path and the direction the vehicle is actually traveling. StabiliTrak® Plus selectively applies braking pressure at any one of the vehicle's brakes to help control the vehicle in the steering direction. This symbol, along with the STABILITY CONTROL ACTIVE message comes on the Driver Information Center (DIC). If there is a problem detected with StabiliTrak® Plus, this symbol along with the SERVICE STABILITY SYSTEM warning message will come on the DIC. See DIC Warnings and Messages on page 3-69. When this message is displayed, the system is not operational. Driving should be adjusted accordingly. To turn the StabiliTrak® system off, press and hold the traction control button for more than five seconds. A message will appear on the DIC indicating that StabiliTrak® has been turned off. You can turn the system back on at any time by pressing the button again. If the vehicle is in cruise control when StabiliTrak® Plus activates, the cruise control will automatically disengage. When road conditions allow safe use of it, the cruise control can be used again. See Cruise Control on page 3-10 for more information. See DIC Warnings and Messages on page 3-69. You may also hear a noise or feel vibration in the brake pedal. This is normal. Continue to steer the vehicle in the desired direction. 4-12