2013 Chevrolet Express 1500 Cargo Owner Manual - Page 222

9-32 Driving and Operating system should initialize before the vehicle reaches 40 km/h (25 mph). In some cases, it may take approximately 3.2 km (2 mi) of driving before the system initializes. Ride Control Systems StabiliTrak® System The vehicle may have a vehicle stability enhancement system called StabiliTrak. It is an advanced computer controlled system that assists the driver with directional control of the vehicle in difficult driving conditions. StabiliTrak activates when the computer 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 assist the driver with keeping the vehicle on the intended path. When the vehicle is started and begins to move, the system performs several diagnostic checks to ensure there are no problems. The system may be heard or felt while it is working. This is normal and does not mean there is a problem with the vehicle. The The Traction Control System (TCS)/ StabiliTrak indicator light comes on in the instrument cluster when the system requires service. When StabiliTrak activates, the TCS/StabiliTrak indicator light flashes in the instrument cluster. This also occurs when TCS is activated. See Traction Control System (TCS)/ StabiliTrak® Light on page 5‑22. For your safety, the system can only be disabled when the vehicle speed is less than 40 km/h (25 mph). Press the StabiliTrak button on the instrument panel once to turn off the Traction Control System (TCS). The appropriate message is displayed in the DIC. Press and hold the StabiliTrak button to turn off StabiliTrak and TCS. The StabiliTrak Off light