GMC 2006 Yukon XL Owner's Manual page 173

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 set button at the end of the lever,
then release the button and the accelerator pedal.
You'll now cruise at the higher speed. If the
accelerator pedal is held longer than 60 seconds,
cruise control will turn off.
•
Move the cruise switch from on to
resume/accelerate. 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 briefly to
resume/accelerate. Each time you do this, your
vehicle will go about 1 mph (1.6 km/h) faster.
Reducing 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, briefly press
the set button. Each time you do this, you'll go
about 1 mph (1.6 km/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 want to step on the
accelerator pedal to maintain your speed. 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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