2003 GMC Sierra 1500 Pickup Owner's Manual - Page 114

If you have fourwhec. _.e your vet..,le will ., , is be free to roll even if your shift lever in PARK (P)- if your transfer case in NEUTRAL. is So, be sure the transfer casein a drivegear, is (2H) or four- wheel high (4H) or two-wheel high four-wheel low(4L) - not inNEUTRAL. See in "Shifting into Park (P)" the index. REVERSE (R): Use this gear to back up. If your vehicle is equipped with the Allison Transmission, the R may blink on the PRNDL if the shift inhibitor is active. ShiftLJ into a drivegear while your engine is "racing" (running at high speed) is dangerous. Unless your footis firmly on the brake pedal, your vehicle could move very rapidly. You could lose control andhit people or objects. Don't shift into a drive gear while your engine is racing. 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. DRIVE (D): This position is for normal driving. If Notice: Shifting to REVERSE (R) while your vehicle you need more power for passing, and you're: is moving forward could damage your transmission. Shift to REVERSE (R) only after your vehicle is Going less than about 35 mph (55 km/h), push your stopped. accelerator pedal about halfway down. To rock your vehicle back and forth to get out of snow, 0 Going about 35 mph (55 km/h) or more, push the ice or sand without damaging your transmission, accelerator all the way down. see If You Are Stuck: In Sand, Mud, /ce or Snow on You'll shift down to the next gear and have more power. page 4-50. NEUTRAL (N): In this position, your engine doesn't connect with the wheels. To restart when you're already moving, use NEUTRAL (N)only. Also, use NEUTRAL (N) when your vehicle is being towed. 2-27