Pontiac Grand Prix 2007 Owner's Manual page 147

Reducing Speed While Using
Cruise Control
There are two ways to reduce the vehicle's speed
while using cruise control:
•
Press and hold the set button until you reach
the lower speed desired, then release it.
•
To slow down in very small amounts, briefly
press the set button. Each time you do
this your vehicle will slow down about
one mph (1.6 km/h).
Passing Another Vehicle While Using
Cruise Control
Use the accelerator pedal to increase the vehicle's
speed. When you take your foot off the pedal,
the vehicle will slow down to the cruise control
speed set earlier.
Using Cruise Control on Hills
How well the cruise control will work on hills
depends upon the vehicle's speed, its load,
and the steepness of the hills. When going up
steep hills, the accelerator pedal might have to be
used in order to maintain the vehicle's speed.
When going downhill, the brakes might have to
be applied, or the transaxle might have to be
shifted to a lower gear to keep the vehicle's speed
down. Doing either of these things will take the
vehicle out of cruise. It may be better not to
use the cruise control if the brakes constantly have
to be applied, or the vehicle continuously needs
to be shifted to a lower gear.
Ending Cruise Control
There are two ways to turn off the cruise control:
•
Step lightly on the brake pedal
•
Move the cruise control switch to off
Erasing Speed Memory
When the cruise control or the ignition is turned
off, the cruise control set speed memory is erased.
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