2009 Chrysler Aspen Owner Manual - Page 308

306 STARTING AND OPERATING NOTE: When the vehicle is in 4WD LOW, a feature of the ESP system remains active whether the ESP is on or off. This feature functions similar to a limited slip differential and controls the wheel spin across an axle. If one wheel on an axle is spinning faster than the other, the system will apply the brake of the spinning wheel and allow more engine torque to be applied to the wheel that is not spinning. apply individual brakes that will counter act the sway of the trailer. TSC will become active automatically once the swaying trailer is recognized. No driver action is required. TSC cannot stop all trailers from swaying. Always use caution when towing a trailer and follow the tongue weight recommendations. For additional information on towing a trailer with your vehicle, refer to ЉTrailer TowingЉ in Section 5. ESP/BAS Warning Light and ESP/TCS Indicator Light The malfunction indicator for the ESP is combined with the BAS indicator. The yellow ESP/BAS Warning Light and the yellow ESP/TCS Indicator Light in the instrument cluster both come on when the ignition switch is turned to the ON position. They should both go out with the engine running. If the ESP/BAS Warning Light comes on continuously with the engine running, a malfunction has been detected in either the ESP or BAS system, or both. If this light remains on after several ignition cycles, WARNING! In the Partial Off mode, the engine torque reduction and stability features are desensitized. Therefore, the enhanced vehicle stability offered by ESP is unavailable. Trailer Sway Control (TSC) TSC uses sensors in the vehicle to recognize a swaying trailer and will take the appropriate actions to attempt to stop the sway. The system will reduce engine power and