2006 Chrysler Town & Country Owner's Manual - Page 316

316 STARTING AND OPERATING "R" Reverse Shift into this range only after the vehicle has come to a complete stop. "N" Neutral Engine may be started in this range. "D" Overdrive For most city and highway driving, it provides smoothest upshifts and downshifts and best fuel economy. When frequent transmission shifting occurs while using the "D" Overdrive position, such as when operating the vehicle under heavy loading conditions, (i.e. in hilly terrain, traveling into strong head winds or while towing heavy trailers), using the "3" position will improve performance and extend transmission life by reducing excessive shifting and heat build-up. "3" Drive This range eliminates shifts into Overdrive. The transmission will operate normally in First, Second and Third while in this range. The "3" position should also be used when descending steep grades to prevent brake system distress. NOTE: Using the "3" range while operating the vehicle under heavy operating conditions will improve performance and extend transmission life by reducing excessive shifting and heat build up. "L" Low This range should be used for engine braking when descending very steep grades. In this range, upshifts will occur only to prevent engine overspeed while downshifts occur earlier than other gear range selections. NOTE: The vehicle computer will over ride Overdrive and "3" Drive ranges by changing shift points if the transmission operating temperature exceeds acceptable limits. This is done to prevent transmission damage due to overheating.