2011 Chevrolet Silverado 1500 Regular Cab Owner's Manual - Page 174

5-30 Instruments and Controls The light flashes if the system is active and is working to assist the driver with directional control of the vehicle in difficult driving conditions. See StabiliTrak® System on page 9‑67 for more information. If the vehicle is a hybrid, see the hybrid supplement for more information. When the Light Is On Steady This indicates that one or more of the tires are significantly underinflated. A tire pressure message can accompany the light. See Tire Messages on page 5‑48 for more information. Stop as soon as possible, and inflate the tires to the pressure value shown on the Tire and Loading Information label. See Tire Pressure on page 10‑63 for more information. When the Light Flashes First and Then Is On Steady This indicates that there may be a problem with the TPMS. The light flashes for about a minute and stays on steady for the remainder of the ignition cycle. This sequence repeats with every ignition cycle. See Tire Pressure Monitor Operation on page 10‑66 for more information. StabiliTrak® Indicator Light For vehicles with the StabiliTrak system, this light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. If the system is working normally the indicator light then goes off. If the light comes on and stays on while driving, there could be a problem with the StabiliTrak system and the vehicle might need service. When this warning light is on, the StabiliTrak system is off and does not limit wheel spin. Tire Pressure Light For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS.