GMC C series 2002 Owner's Manual page 84

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.
3. Press in the SET button at the end of the lever and
release it.
4. Take your foot off the accelerator pedal.
Resuming a Set Speed
Once you're going about 30 mph (48 km/h) or more,
you can move the cruise control switch from ON to
R/A (Resume/Accelerate) briefly.
The vehicle will return to your chosen speed and
stay there.
If you hold the switch at R/A, the vehicle will keep
going faster until you release the switch or apply the
brake, so unless you want to go faster, don't hold the
switch at R/A.
If the switch is held at R/A for longer than 20 seconds,
the cruise control will automatically turn off. The cruise
control function will be made available again the next
time the engine is started.
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