GMC 1993 Safari Owner's Manual page 193

Par&ing on Hills
AM470027
Hills and mountains mean spectacular scenery. But please be careful where
you stop if you decide to look at the view or take pictures. Look for pull-offs
or parking areas provided for scenic viewing.
Another part of this manual tells how to use your parking brake (see "Parking
Brake" in the Index.) But on a mountain or steep hill, you can do one more
thing. You can turn your front wheels to keep your vehicle from rolling
downhill or out into traffic.
Here's how:
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