2011 Chevrolet Impala Owner's Manual - Page 134

5-22 Instruments and Controls If the light stays on, or comes on while driving a SERVICE STABILITRAK message appears in the DIC. This indicates that there may be a problem with the Electronic Stability Control (ESC) system and the vehicle may need service. When this warning light is on and the SERVICE STABILITRAK message appears on the DIC, the ESC system does not assist in controlling the vehicle. When the system is active, the light flashes while the system is assisting in controlling the vehicle. See Electronic Stability Control (ESC) on page 9‑31 and Ride Control System Messages on page 5‑35 for more information. Traction Control System (TCS) Warning Light For vehicles with a Traction Control System (TCS) and StabiliTrak® warning light, this light comes on briefly when the engine 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. When the system is active, the light flashes while the system is limiting wheel spin or assisting with controlling the vehicle. If it stays on or comes on while driving a SERVICE TRACTION CONTROL message appears in the Driver Information Center (DIC). This indicates that there could be a problem with the traction control system and the vehicle may need service. When this warning light is on and the SERVICE TRACTION CONTROL message appears on the DIC, the system does not limit wheel spin. If the traction control system is manually turned off, this light comes on and the TRACTION CONTROL OFF message appears on the DIC. See Traction Control System (TCS) on page 9‑29 and Ride Control System Messages on page 5‑35 for more information.