2011 Dodge Ram 1500 Crew Cab Owner Manual - Page 466

STARTING AND OPERATING 465 NOTE: Using "TOW/HAUL" mode or a lower gear Electronic Speed Control - If Equipped range while operating the vehicle under heavy operating − Do not use in hilly terrain or with heavy loads. conditions will improve performance and extend transmission life by reducing excessive shifting and heat build − When using the speed control, if you experience speed drops greater than 10 mph (16 km/h), disengage until up. This action will also provide better engine braking. you can get back to cruising speed. The automatic transmission fluid and filter should be changed if you regularly tow a trailer for more than − Use speed control in flat terrain and with light loads to maximize fuel efficiency. 45 minutes of continuous operation. Refer to "Maintenance Schedule" for the proper maintenance intervals. Cooling System NOTE: Check the automatic transmission fluid level To reduce potential for engine and transmission overheating, take the following actions: before towing. Tow/Haul To reduce potential for automatic transmission overheating, turn the "TOW/HAUL" feature ON when driving in hilly areas, or select a lower gear range (using the Electronic Range Select (ERS) feature) on more severe grades. − City Driving When stopped for short periods of time, shift the transmission into NEUTRAL and increase engine idle speed. − Highway Driving Reduce speed. 5