2007 Buick Terraza Owner's Manual - Page 135

DRIVE (D): This position is for normal driving. It provides the best fuel economy for your vehicle. If you need more power for passing, and you are: • 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. The vehicle will shift down to the next gear and have more power. Downshifting the transaxle in slippery road conditions could result in skidding, see Skidding under Loss of Control on page 362 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 DRIVE (D) for higher speeds until then. 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 193 and Dual Climate Control System on page 197 for more information. THIRD (3): This position is also used for normal driving. It reduces vehicle speed more than DRIVE (D) without using your brakes. You might choose THIRD (3) instead of DRIVE (D) when driving on hilly, winding roads, when towing a trailer, so there is less shifting between gears and when going down a steep hill. 135