Chevrolet 2001 Impala Owner's Manual page 120

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. Slide the cruise control ON lever on the turn signal
lever to the right to turn it on.
2. Get up to the speed you want.
2-50
4. Take your foot off the accelerator.
The CRUISE light on the instrument panel cluster will
come on after the cruise control has been set to the
desired speed.
3. Press the SET button on
your steering wheel and
release it.