2003 GMC Envoy Owner's Manual - Page 93

REVERSE (R): Use this gear to back up. Notice: Shifting to REVERSE (R) while your vehicle is moving forward could damage your transmission. Shift to REVERSE (R) only after your vehicle is stopped. Notice: Damage to your transmission caused by shifting out of PARK (P) or NEUTRAL (N) with the engine racing isn't covered by your warranty. On cold days, approximately 32°F (OOC) or colder, your transmission is designed to shift differently until the engine reaches normal operating temperature. This is intended to improve heater performance. DRIVE (D): This position is for normal driving. If you need more power for passing, and you're: Going less than about 35 mph (55 km/h), push the accelerator pedal about halfway down. Going about 35 mph (55 km/h) or more, push the accelerator all the way down. You'll shift down to the next gear and have more power. DRIVE (D) can be used when towing a trailer, carrying a heavy load, driving on steep hills or for off-road driving. You may want to shift the transmission to THIRD (3) or, if necessary, a lower gear selection if the transmission shifts too often. THIRD (3): This position is also used for normal driving, however it offers more power and lower fuel economy than DRIVE (D). To rock your vehicle back and forth to get out of snow, ice or sand without damaging your transmission, see If You Are Stuck: In Sand, Mud, Ice or Snow on page 4-44. NEUTRAL (N): In this position, the engine doesn't connect with the wheels. To restart when you're already moving, use NEUTRAL (N) only. . ,ON: CAU'. Shifting into a drive gear while your engine is "racing" (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. Don't shift into a drivegear while your engine is racing. 2-24