1999 GMC Jimmy Owner's Manual - Page 218

yellowblue CAUTION: Shifting the transfer case to NEUTRAL can cause your vehicle to roll even if the transmission is in PARK (P) (or, if you have the manual transmission, even if you're in gear). This is because the NEUTRAL position on the transfer case overrides the transmission. You or someone else could be injured. If you are going to leave your vehicle, set the parking brake and shift the transmission to PARK (P) (or, put your manual transmission in FIRST (1)). But do not shift the transfer case to the NEUTRAL position. Leave the transfer case in a drive position. Driving Downhill When off-roading takes you downhill, you'll want to consider a number of things: D How steep is the downhill? Will I be able to maintain vehicle control? D What's the surface like? Smooth? Rough? Slippery? Hard-packed dirt? Gravel? D Are there hidden surface obstacles? Ruts? Logs? Boulders? D What's at the bottom of the hill? Is there a hidden creek bank or even a river bottom with large rocks? If you decide you can go down a hill safely, then try to keep your vehicle headed straight down, and use a low gear. This way, engine drag can help your brakes and they won't have to do all the work. Descend slowly, keeping your vehicle under control at all times. 4-22