Chevrolet 1998 C/K Full-Size Pickup Owner's Manual page 124

Increasing Speed While Using Cruise Control
There are two ways to go to a higher speed:
Use the accelerator pedal
to
get to the higher speed.
Press the button at the end of the lever, then release
the button and the accelerator pedal. You'll now
cruise at the higher speed.
Move the cruise switch from
ON to WA.
Hold it
there until you get up to the speed you want, and
then release the switch. (To increase your speed in
very small amounts, move the switch to R/A for less
than half a second. Each time you do this, your
vehicle will go about 1 mph (1.6 k d h ) faster.)
Reducing Speed While Using Cruise Control
There are two ways to reduce your speed while using
cruise control:
0
Press in the button at the end of the lever until you
reach the lower speed you want, then release it.
To slow down in very small amounts, press the
button for less than half a second. Each time you do
this, you'll go 1 mph (1.6 k d h ) slower.
Passing Another Vehicle While Using Cruise Control
Use the accelerator pedal to increase your speed. When
you take your foot off the pedal, your vehicle will slow
down to the cruise control speed you set earlier.
Using Cruise Control on Hills
How well your cruise control will work on hills depends
upon your speed, load and the steepness of the hills.
When going up steep hills, you may have to step on the
accelerator pedal to maintain your speed. If the
steepness of the hill causes the vehicle speed to drop
more than 15 mph (24 kmh) below the set speed, your
cruise control will automatically disengage. When going
downhill, you may have to brake or shift to a lower gear
to keep your speed down. Of course, applying
the
brake
takes you out of cruise control. Many drivers find this to
be too much trouble and don't use cruise control on
steep hills.
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