2009 Jeep Liberty Owner's Manual - Page 390

388 STARTING AND OPERATING Towing Tips Before setting out on a trip, practice turning, stopping, and backing the trailer in an area located away from heavy traffic. Automatic Transmission The "D" range can be selected when towing. However, if frequent shifting occurs while in this range, you will want to activate the TOW/HAUL feature. Refer to "Automatic Transmission" in this section for additional information. NOTE: Using the TOW/HAUL feature while operating the vehicle under heavy operating conditions will improve performance and extend transmission life by reducing excessive shifting and heat build up. This action will also provide better engine braking. If you REGULARLY tow a trailer for more than 45 minutes of continuous operation, then change the automatic transmission fluid and filter according to the interval specified for "police, taxi, fleet, or frequent trailer towing" in the "Maintenance Schedule" in this manual. TOW/HAUL To reduce potential for automatic transmission overheating, press the TOW HAUL button when driving in hilly areas or shift the transmission to Drive position "2" on more severe grades. Refer to "Automatic Transmission" in this section for additional information. Electronic Speed Control - If Equipped − Do not use in hilly terrain or with heavy loads. − When using the speed control, if you experience speed drops greater than 10 mph (16 km/h), disengage until you can get back to cruising speed. − Use speed control in flat terrain and with light loads to maximize fuel efficiency.