Chevrolet 2003 Silverado 1500 Pickup Owner's Manual page 329

Your anti-lock brakes improve your vehicle's stability
when you make a hard stop on a slippery road.
Even though you have an anti-lock braking system,
you'll want to begin stopping sooner than you would on
dry pavement. See Braking on page 4-6.
Allow greater following distance on any
slippery road.
Watch for slippery spots. The road might be fine
until you hit a spot that's covered with ice. On
an otherwise clear road, ice patches may appear in
shaded areas where the sun can't reach: around
clumps of trees, behind buildings or under bridges.
Sometimes the surface of a curve or an overpass
may remain icy when the surrounding roads
are clear. If you see a patch of ice ahead of you,
brake before you are on it. Try not to brake
while you're actually on the ice, and avoid sudden
steering maneuvers.
If You're Caught in a Blizzard
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If you are stopped by heavy snow, you could be in a
serious situation. You should probably stay with your
vehicle unless you know for sure that you are near help
and you can hike through the snow.Here are some things
to do to summon help and keep yourself and your
passengers safe:
Turn on your hazard flashers.
Tie a red cloth to your vehicle to alert police that
you've been stopped by the snow.
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