2015 Buick LaCrosse Owner Manual - Page 213

9-28 Driving and Operating To rock the vehicle back and forth to get out of snow, ice, or sand without damaging the transmission, see If the Vehicle Is Stuck on page 9-9. N (Neutral): In this position, the engine does not connect with the wheels. To restart the engine when the vehicle is already moving, use N (Neutral) only. Also, use N (Neutral) when the vehicle is being towed. { Caution Shifting out of P (Park) or N (Neutral) with the engine running at high speed may damage the transmission. The repairs would not be covered by the vehicle warranty. Be sure the engine is not running at high speed when shifting the vehicle. D (Drive): This position is for normal driving. It provides good fuel economy when pushing the accelerator pedal around a quarter of the way down. If more power is needed for passing, press the accelerator pedal over half, or all the way down. { Caution If the vehicle accelerates slowly, or does not shift gears, the transmission could be damaged. Have the vehicle serviced right away. M (Manual Mode) or M/S (Manual Mode/Sport Mode): This position allows the driver to select the gears appropriate for current driving conditions, and to activate Selective Ride Control (if equipped). See Manual Mode on page 9-29 and Selective Ride Control on page 9-36. { Warning Shifting into a drive gear while the engine is running at high speed is dangerous. Unless your foot is firmly on the brake pedal, the vehicle could move very rapidly. You could lose control and hit people or objects. Do not shift into a drive gear while the engine is running at high speed.