Maserati QUATTROPORTE Owner's Manual page 212

Driving
If the driver presses the accelerator
pedal while the Cruise Control is
active, such as to overtake another
vehicle, and exceeds the speed limit,
the system will temporarily deactivate
the speed regulator. A message pops
5
up for 5 seconds on the instrument
cluster to alert the driver.
When the accelerator pedal is
released, the vehicle will return to the
set speed.
210
Setting Desired Speed
Turn the electronic Cruise Control ON.
When the vehicle has reached the
desired speed (in the example:
51 mph), push the switch downward
and release.
The green light will illuminate and
the related message will pop up for 5
seconds on the instrument cluster.
Release the accelerator and the vehicle
will operate at the selected speed.
NOTE:
The vehicle should be traveling at a
steady speed and on level ground
before pushing the switch downward.
Resume Speed
To resume a previously set speed, push
the RES (+) switch upward and release.
Resume can be used at any speed
above 19 mph (30 km/h).
Changing Speed Setting
When the electronic Cruise Control is
set, you can increase speed by pushing
the switch upward. Keeping the switch
pressed, the set speed will continue to
increase until the switch is released,
then the new set speed will be
maintained and memorized.
To decrease speed while the electronic
Cruise Control is activated, push the
switch downward. Keeping the switch
pushed in the downward position, the
set speed will continue to decrease
until the switch is released. Release the
switch when the desired speed is
reached, and the new set speed will be
maintained.
Pushing the switch upward or
downward once will enable to increase
or decrease the set speed of 1.24 mph
(2.0 km/h).
Each subsequent tap of the switch will
increase or decrease the speed of
1.24 mph (2.0 km/h).