2005 Pontiac Montana SV6 Owner's Manual - Page 133

Notice: Shifting out of PARK (P) or NEUTRAL (N) with the engine racing may damage the transaxle. The repairs would not be covered by your warranty. Be sure the engine is not racing when shifting your vehicle. AUTOMATIC OVERDRIVE (D): This position is for normal driving. If you need more power for passing, and you are: Warm-Up Shift Your vehicle has a computer controlled transaxle designed to warm up the engine faster when the outside temperature is 35°F (2°C) or colder. You may notice that the transaxle will shift at a higher vehicle speed until the engine is warmed up. This is a normal condition designed to provide heat to the passenger compartment and defrost the windows more quickly. See Climate Control System on page 3-26 for more information. THIRD (3): This position is also used for normal driving, but it offers more power and lower fuel economy than AUTOMATIC OVERDRIVE (D). Here are some times you might choose THIRD (3) instead of AUTOMATIC OVERDRIVE (D): • Going less than 35 mph (55 km/h), push your accelerator pedal about halfway down. • Going about 35 mph (55 km/h) or more, push the accelerator all the way down. You will shift down to the next gear and have more power. Notice: If your vehicle seems to start up rather slowly or not shift gears when you go faster, and you continue to drive your vehicle that way, you could damage the transaxle. Have your vehicle serviced right away. You can drive in SECOND (2) when you are driving less than 35 mph (55 km/h) and AUTOMATIC OVERDRIVE (D) for higher speeds until then. • When driving on hilly, winding roads • When towing a trailer, so there is less shifting between gears • When going down a steep hill 2-35