Chevrolet 2002 Venture Owner's Manual page 172

Setting Cruise Control
CAUTION:
If you leave your cruise control switch on when
you're not using cruise, you might hit a button
and go into cruise when you don't want to. You
could be startled and even lose control. Keep the
cruise control switch off until you want to use
cruise control.
1. Move the cruise control switch to ON.
2. Get up to the speed you want.
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3. Press in the SET button at the end of the lever and
release it.
4. Take your foot off the accelerator pedal.