If there is a problem detected with Stabilitrak® , aService Stability System message will be displayed onthe Driver Information Center. See DIC Warningsand Messages on page 3-57. When this message isdisplayed, the system is not operational. Driving shouldbe adjusted accordingly.Stabilitrak ® comes on automatically whenever you startyour vehicle. To help assist you with directionalcontrol of the vehicle, you should always leave thesystem on. You can turn Stabilitrak® off if you ever needto through the TC (traction control) on/off button.See Traction Control System (TCS) on page 4-9.If your vehicle is in cruise control when the Stabilitrak®activates, the cruise control will automaticallydisengage. When road conditions allow you to safelyuse it again, you may reengage the cruise control.See “Cruise Control on page 3-12 for more information.Panic Brake AssistYour vehicle has a panic brake assist system thatmonitors the intention of the driver while braking. If thesystem senses that the driver has applied hard/fastpressure to the brake pedal, the system will generateadditional pressure, making it easier for the driverto maintain brake application. When this happens thebrake pedal will feel easier to push. Just hold the brakepedal down firmly and let the system work for you.You may feel the brakes vibrate, or you may noticesome noise but this is normal. The brakes will returnto normal operation after the brake pedal hasbeen released.4-11