From the owner's manual;
Competitive DrivingCompetitive driving may affect the vehicle warranty. See the warranty book before using the vehicle for competitive driving.
Notice: If you use your vehicle for competitive driving, the engine may use more oil than it would with normal use. Low oil levels can damage the engine. Be sure to check the oil level often during competitive driving and keep the level at or near the upper mark that shows the proper operating range on the engine oil dipstick.
Ride Control SystemsTraction control system (TCS)
The vehicle has a Traction control system (TCS) that limits wheelspin. This is especially useful in slippery road conditions. On a rear-wheel-drive vehicle, the system operates if it senses that one or both of the rear wheels are spinning or beginning to lose traction.
On an All-Wheel-Drive (AWD) vehicle, the system will operate if it senses that any of the wheels are spinning or beginning to lose traction. When this happens, the system brakes the spinning wheel(s) and/or reduces engine power to limit wheel spin. The system may be heard or felt while it is working, but this is normal. The TCS/StabiliTrak warning light flashes when the traction control system is limiting wheel spin. The TCS/StabiliTrak warning light comes on if there is a problem with the traction control system. When the TCS/StabiliTrak warning light is on, the system will not limit wheel spin.
Adjust your driving accordingly.
SeeTraction control system (TCS)/StabiliTrak®Light page 5-24 for more information.
TCS automatically comes on whenever the vehicle is started. To limit wheel spin, especially in slippery road conditions, the system should always be left on, but it may be necessary to turn the system off if the vehicle is stuck in sand, mud, or snow, and rocking the vehicle is required. See If the Vehicle is Stuck on pages 9-11 for more information.
See Winter Driving on pages 9-9 for information on using TCS while driving in snowy or icy conditions. This button is located on the instrument panel (CTS) or the steering wheel (CTS-V). Press and release the TCS/StabiliTrak button and the traction-control system will turn off and the TCS/StabiliTrak warning light will come on. Press the button again to turn the system back on. For information on turning StabiliTrakoff and on, see StabiliTrak Systemfollowing. Adding non‐dealer accessories can affect your vehicle's performance. See Accessories and Modifications on pages 10-3 for more information.
The vehicle has an electronic stability control system called StabiliTrak. It is an advanced computer-controlled system that assists with directional control of the vehicle in difficult driving conditions.StabiliTrak activates when the system senses a discrepancy between the 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. When the system activates, this warning light flashes on the instrument panel. A noise may be heard or vibration may be felt in the brake pedal.
This is normal. Continue to steer the vehicle in the intended direction. If there is a problem detected with StabiliTrak, SERVICESTABILITRAK displays on the Driver Information Center (DIC) and the TCS/StabiliTrak warning light comes on the instrument panel cluster. When this message and warning light are displayed, the system is not operational. Driving should be adjusted accordingly. SeeDriverInformation Center (DIC) on pages 5-27 and Messages and Traction Control System (TCS)/StabiliTrak®Light on pages 5‑24formore information.
This button is located on the instrument panel (CTS) or the steering wheel (CTS-V).StabiliTrak comes on automatically whenever the vehicle is started. The system should be left on to help assist with directional control of the vehicle. If StabiliTrak needs to be turned off, press and hold the TCS/StabiliTrak button until the TCS/StabiliTrak warning light comes on and StabiliTrak OFF comes on the DIC. More steering effort is required when the system is turned off.
If cruise control is being used when the StabiliTrak activates, the cruise control will automatically disengage. When road conditions allow, reengage the cruise control. SeeCruise Control on pages 9‑41formore information. Competitive Driving ModeTo selects this optional handling mode, press the/StabiliTrak button quickly two times, and STABILITRAKCOMPETITIVE MODE displays in the Driver Information Center (DIC).
While in the StabiliTrak CompetitiveMode, the TCS/StabiliTrak warning light comes on, TCS does not limit wheel spin, and more effort is required to turn the steering wheel. Adjust your driving accordingly. Press the TCS/StabiliTrak button again, or turn the ignition to ACC/ACCESSORY and restart the vehicle, to turn TCS back on and turn the TCS/StabiliTrak warning light off. Notice: When traction control is turned off, or Competitive DrivingMode is active, it is possible to lose traction. If you attempt to shift with the drive wheels spinning with a loss of traction, it is possible to cause damage to the transmission. Do not attempt to shift when the drive wheels don't have traction. Damage caused by misuse of the vehicle is not covered. See the warranty book for additional information.
Magnetic Ride Control;
With this feature on the CTS-V, the Magnetic Ride Control system adjusts the ride of the vehicle to Tour or Sport modes. Magnetic RideControl monitors the suspension system to determine the proper system response.TOUR: Use for normal city and highway driving. This setting provides a smooth, soft ride
.SPORT: Use where road conditions or personal preference demand more control. This setting provides more “feel,” or response to road conditions.
The setting can be changed at any time. Based on road conditions, steering wheel angle, and vehicle speed, the system automatically adjusts to provide the best handling while providing a smooth ride. The Tour and Sport modes will feel similar on a smooth road. Select a new setting whenever driving conditions change. The Driver Information Center (DIC)briefly displays SUSPENSION MODE TOUR or SUSPENSION MODE SPORT on vehicle startup or when a new mode is selected. Press and release this button, located in the center of the instrument panel, to change modes. Limited-Slip Rear Axle Vehicles with a limited-slip rear axle can give more traction on snow, mud, ice, sand, or gravel. When traction is low, this feature allows the drive wheel with the most traction to move the vehicle. The limited-slip rear axle also gives the driver enhanced control when cornering hard or completing maneuvers, such as lane change.
This happened a couple of years ago; as I remember. On my 2011 CTS RWD Coupe, I had all the nannies on (normal driving position) and was driving hard thru a turn. I gave it more throttle, and the car's front tires started to slide as did the rear tires with the limited-slip rear axle. The car did not like all that happening and started flashing all the nanny lights, the throttle disengaged and the traction light was flashing. The car corrected itself from the 4-wheel drift. The engine went to limp mode and the dash brake lights started blinking. The car stayed in limp mode.
I stopped the car, shut the ignition off, and restarted the engine. The car adjusted all its nanny positions back to normal again and drove as if nothing had happened.
The moral to this is; If you want to play turn-off all the nannies and PLAY.