2009 Honda Ridgeline Owner's Manual - Page 278
2009 Honda Ridgeline Manual
Page 278 highlights
Main Menu Table Of Contents Automatic Transmission When towing a trailer on level roads under normal driving conditions, do not use D3. This will increase the automatic transmission fluid temperature and may cause overheating. Shifting out of the D position will cancel D3, and cause the D3 indicator to go out. Selecting the D position again will resume D3, and the indicator will come on. D3 INDICATOR Second (2) To shift to second, pull the shift lever towards you, then shift to the lower gear. This position locks the transmission in second gear. It does not downshift to first gear when you come to a stop. Use second gear: For more power when climbing. To increase engine braking when going down steep hills. For starting out on a slippery surface or in deep snow. To help reduce wheel spin. When driving downhill with a trailer. When D3 is on, the transmission selects only the first three gears. Use D3 for engine braking when going down a steep hill. Turning the ignition switch to the LOCK (0) position turns D3 off. To use D3 when you restart the engine, select the D position, and press the D3 switch again. The D3 indicator also comes on for a few seconds when you turn the ignition switch to the ON (II) position. 274 2009 Ridgeline