2005 Jeep Liberty Owner's Manual - Page 235

STARTING AND OPERATING 235 Over Temperature Mode The transmission electronics constantly monitor the transmission oil temperature. If the transmission gets too hot, the transmission will change the way it shifts to help control the condition. This may result in a slightly different feeling or response during normal operation in D (Drive) position. If the transmission becomes hot enough the TRANS TEMP warning light in the instrument cluster will come on. After the transmission cools down, it will return to normal operation. Torque Converter Clutch A feature designed to improve fuel economy has been added to the automatic transmission of this vehicle. A clutch within the torque converter engages automatically at calibrated speeds. This may result in a slightly different feeling or response during normal operation in high gear. When the vehicle speed drops or during acceleration, the clutch automatically and smoothly disengages. NOTE: • The torque converter clutch (TCC) will not engage until the transmission fluid and engine coolant are warm (usually after 1-3 miles (1.6-4.8 km) of driving) and the vehicle speed is above approximately 30 mph (48 km/h). To understand the difference in operation, drive the vehicle so that TCC engagement conditions are correct, and then press and release the "O/D OFF" button once to disengage the TCC. Wait a few seconds, and then press and release the "O/D OFF" button again to engage the TCC. You will notice that the engine runs at a higher RPM when driving at vehicle speeds above approximately 30 mph (48 km/h) with the TCC not engaged. This is a normal condition. • If the vehicle has not been driven for several days, the first few seconds of operation after shifting the transmission into gear may seem sluggish. This is due to the transmission fluid partially draining from the torque converter into the transmission. This is considered a 5