2009 Dodge Challenger Owner's Manual - Page 264

262 STARTING AND OPERATING "3" (Third) This range eliminates shifts into Overdrive. The transmission will operate normally in 1st, 2nd, and 3rd while in this range. The "3" position should also be used when descending steep grades to prevent brake system distress. CAUTION! Never race the engine with the brakes on and the vehicle in gear, and never hold the vehicle on an incline without applying the brakes. These practices can cause overheating and damage to the transmission. NOTE: Using the "3" range while operating the vehicle under heavy operating conditions will improve perforTorque Converter Clutch mance and extend transmission life by reducing excesA feature designed to improve fuel economy has been sive shifting and heat buildup. added to the automatic transmission in this vehicle. A "L" (Low) clutch within the torque converter engages automatically This range should be used for engine braking when at calibrated speeds. This may result in a slightly differdescending very steep grades. In this range, upshifts will ent feeling or response during normal operation in high occur only to prevent engine overspeed while downshifts gear. When the vehicle speed drops or during acceleraoccur earlier than in other gear range selections. tion, the clutch automatically and smoothly disengages.