2009 Dodge Ram 1500 Pickup Owner Manual - Page 412

410 STARTING AND OPERATING WARNING! Any work done to the vehicle's electrical system or wiring should be performed by a qualified automotive technician. If done improperly it may cause damage to the electrical system wiring and could result in serious or fatal injury. NOTE: Using "TOW/HAUL" mode or a lower gear range 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. The automatic transmission fluid and filter should be changed if you regularly tow a trailer for more than 45 minutes of continuous operation. Refer to the "MainTowing Tips tenance Schedule" in Section 8 for the proper mainteBefore setting out on a trip, practice turning, stopping nance intervals. and backing the trailer up in an area away from heavy NOTE: Check the automatic transmission fluid level traffic. before towing. Automatic Transmission The "DRIVE" range can be selected when towing. How- Tow/Haul ever, if frequent shifting occurs while in this range, select To reduce potential for automatic transmission overheat"TOW/HAUL" mode (if equipped) or select a lower gear ing, turn the "TOW/HAUL" feature ON when driving in hilly areas, or select a lower gear range (using the using the Electronic Range Select (ERS) feature. Electronic Range Select (ERS) feature) on more severe grades.