2011 Chevrolet Volt Owner's Manual - Page 147

Instruments and Controls 5-27 Traction Control System (TCS)/StabiliTrak® Light Engine Coolant Temperature Warning Light Tire Pressure Light This light comes on briefly while starting the vehicle. 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 TCS/StabiliTrak system and the vehicle might need service. When this warning light is on, the TCS/StabiliTrak system is off and does not limit wheel spin. 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. The engine coolant temperature warning light comes on briefly when the vehicle is started. 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, the vehicle may have a problem with the cooling system. Stop and turn off the vehicle to avoid damage to the engine. A warning chime sounds when this light is on. See Engine Overheating on page 10‑23 for more information. For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the vehicle is in ON/RUN. It provides information about tire pressures and the TPMS. When the Light is On Steady This indicates that one or more of the tires are significantly underinflated. A message in the Driver Information Center (DIC) may also display. See Tire Messages on page 5‑52 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 Tires on page 10‑48 for more information.