2006 Pontiac Grand Prix Owner's Manual - Page 101

{CAUTION: Shifting into a drive gear while your engine is running at high speed is dangerous. Unless your foot is firmly on the brake pedal, your vehicle could move very rapidly. You could lose control and hit people or objects. Do not shift into a drive gear while your engine is running at high speed. Notice: Shifting out of PARK (P) or NEUTRAL (N) while the engine is running at high speed may damage the transaxle. The repairs would not be covered by your warranty. Be sure the engine is not running at high speeds when shifting your vehicle. AUTOMATIC OVERDRIVE (D): This position is for normal driving. If the vehicle needs more power for passing, and it is: The vehicle 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. 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 THIRD (3) could be used instead of AUTOMATIC OVERDRIVE (D): • When driving on hilly, winding roads. • When towing a trailer, so there is less shifting between gears. • Going less than 35 mph (55 km/h), push the accelerator pedal about halfway down. • When going down a steep hill. • When driving in non-highway scenarios (i.e. city streets, etc.). • Going about 35 mph (55 km/h) or more, push the accelerator pedal all the way down. 2-27