2009 Chrysler Aspen Owner Manual - Page 285

STARTING AND OPERATING 283 Torque Converter Clutch A feature designed to improve fuel economy is included in all automatic transmissions. A clutch within the torque converter engages automatically at a calibrated speed at light throttle. It engages at higher speeds under heavier acceleration. This may result in a slightly different feeling or response during normal operation in high gear. When the vehicle speed drops below a calibrated speed, or during acceleration, the clutch automatically and smoothly disengages. The feature is operational in OVERDRIVE and in DRIVE. TOW/HAUL Button 5 The "TOW/HAUL Indicator Light" will illuminate in the instrument cluster to indicate when the switch has been activated. Pressing the switch a second time restores normal operation. If the TOW/HAUL mode is desired, the button must be pressed each time the engine is started. NOTE: The torque converter clutch will not engage until the transmission fluid and engine coolant are warm (usually after 1-3 miles [1.6 - 4.8 km] of driving). Because the engine speed is higher when the torque converter clutch is not engaged, it may seem as if the transmission is not shifting into Overdrive when cold. This is normal. Pressing the TOW/HAUL button, when the transmission