GMC 1995 Jimmy Owner's Manual page 173

Driving Downhill
When off-roading takes you downhill, you'll want to consider a number of
things:
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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?
Are there hidden surface obstacles? Ruts? Logs? Boulders?
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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.
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