2007 Cadillac CTS Owner's Manual - Page 299

Limited-Slip Rear Axle If your vehicle has this feature, your limited-slip rear axle can give you additional traction on snow, mud, ice, sand or gravel. It works like a standard axle most of the time, but when one of the rear wheels has no traction and the other does, this feature will allow the wheel with traction to move the vehicle. When the system activates, a Stability System Engaged message will be displayed on the Driver Information Center. See DIC Warnings and Messages on page 228. You may also hear a noise or feel vibration in the brake pedal. This is normal. Continue to steer the vehicle in the direction you want it to go. If there is a problem detected with StabiliTrak®, a Service Stability System message will be displayed on the Driver Information Center. See DIC Warnings and Messages on page 228. When this message is displayed, the system is not operational. Driving should be adjusted accordingly. StabiliTrak® comes on automatically whenever you start your vehicle. To help assist you with directional control of the vehicle, you should always leave the system on. You can turn StabiliTrak® off if you ever need to through the TC (traction control) on/off button. See Traction Control System (TCS) (CTS) on page 295 or Traction Control System (TCS) (CTS-V) on page 297. StabiliTrak® System Your vehicle may have an electronic stability control system called StabiliTrak®. It is an advanced computer controlled system that assists you with directional control of the vehicle in difficult driving conditions. StabiliTrak® activates when the computer senses a discrepancy between your intended path and the direction the vehicle is actually traveling. StabiliTrak® selectively applies braking pressure at any one of the vehicle's brakes to help steer the vehicle in the direction which you are steering. 299