GMC SIERRA 1997 Manual page 116

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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 R/A. 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
( I
.6 km/h) faster.)
Reducing Speed While Using Cruise Control
There are two ways to reduce your speed while using
cruise control:
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 km/hl slower.
Passing Another Vehicle While Using Cruise Contro
Use the accelerator pedal to increase your speed. Whe
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
km/h)
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.
Ending Cruise Control
There are two ways to turn off the cruise control:
0
Step lightly on the brake pedal or
0
Move the cruise switch to OFF.
Erasing Speed Memory
When you
turn
off the cruise control or the ignition,
your cruise control set speed memory is erased.
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