1994 GMC Suburban Owner's Manual - Page 178

vehicle will roll backwards very quickly and you could go out of control. Instead, apply the regular brake to stop the vehicle. Then apply the parking brake. Shift into reverse, release the parking brake, and slowly back straight down. 0 Never attempt to turn around if you are about to stall when going up a hill. If the hill is steep enough to stall your vehicle, it's steep enough to cause you to roll over if you turn around. If you can't make it up the hill, you must back straight down the hill. Q: Suppose, after stalling,I try to back down the hill and decidejust I can't do it. What should I do? A: Set the parking brake, put your transmission in "P" (Park) (or the manual transmission in first gear),and turn off the engine. Leave the vehicle and go get some help. Exit on the uphill side and stay clear of the path the vehicle would take if it rolled downhill. Do not shift the transfer caseto "N" (Neutral) when you leave the vehicle. Leave it in some gear. Driving Downhill When off-roading takes you downhill, you'll want to consider a number of things: How steep is the downhill? Will I be able to maintain vehicle control? What's the surface like? Smooth? Rough? Slippery? Hard-packed dirt? Gravel? 0 Are there hidden surface obstacles?Ruts? Logs'? Boulders? What's at the bottom of the hill? Is there a hidden creek bank or even a river bottom with large rocks? 4-18