2009 Chevrolet Cobalt Owner's Manual - Page 226

Launch Control (SS Models Only) Launch Control is a form of traction control, to control tire spin while launching the vehicle during closed track events and competitive driving. The feature is activated when the vehicle is at rest while in Competitive Mode. At rest, if the accelerator pedal is pressed to the floor with the clutch engaged, the RPM is limited to a predetermined level. A smooth, quick release of the clutch while keeping the accelerator pedal on the floor will provide controlled wheel spin for consistent acceleration. If the vehicle is equipped with a manual transmission, complete shifts as described in Manual Transmission Operation on page 2-28. LAUNCH CONTROL displays in the DIC after the COMPETITIVE MODE message, when the vehicle is stopped. The system will exit to COMPETITIVE MODE after the vehicle is launched. See "Competitive Driving Mode" earlier in this section. The normal Traction Control System (TCS) will not be operating while in the Competitive Driving mode and the TCS light on the instrument panel cluster comes on. Adjust your driving accordingly. See DIC Warnings and Messages on page 3-46 for more information. Traction Control System (TCS) The vehicle may have a Traction Control System (TCS) that limits wheel spin. This is especially useful in slippery road conditions. The system operates only if it senses that the front wheels are spinning too much or are beginning to lose traction. When this happens, the system works the front brakes and reduces engine power by closing the throttle and managing engine spark to limit wheel spin. This light flashes while the traction control system is limiting wheel spin. 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. See Electronic Stability Control (ESC)/Traction Control System (TCS) Indicator/Warning Light on page 3-31 for more information. 4-10