Maserati GranTurismo Owner's Manual page 241

brake system will automatically slow
down the vehicle.
• The ACC system applies the brake
down to a full stop when following a
target vehicle. If an ACC host vehicle
follows a target vehicle to a standstill,
after two seconds the system will
not be able to resume driving the
car autonomously. At this point it is
necessary the intervention of the driver
on the multifunction control (press
RES) or press the accelerator pedal
(see "ACC Operation Before and During
Stop" in this chapter).
• The ACC system maintains set speed
when driving up hill and down hill.
However, a slight speed change on
moderate hills is normal. In addition,
downshifting or the use of the brake
may occur while climbing uphill or
descending downhill. This is normal
operation and necessary to maintain
set speed. When driving uphill and
downhill and the brake is used, the
ACC system will cancel if the braking
temperature exceeds normal range.
Temporary Deactivation
A soft tap on the brake pedal, pushing
the button (CANC), or normal brake
pressure while slowing the vehicle will
temporarily deactivate the ACC without
erasing the set speed memory. The
white light will appear on the display
with beside the set speed.
Conditions for Disabling and
Deactivation
Besides the cases specified in the
previous paragraph, the following
conditions will disable the system:
• "CORSA" drive mode is set.
• The driver disabled the ESC using
the ESC Off soft-key on the Comfort
Display.
The system is deactivated and set speed
is deleted from system memory, if the
ACC ON/OFF button is pressed or if
ignition device is turned to STOP .
Resuming Speed
If a speed setting is stored in system
memory, press the button (RES) and take
foot off the accelerator pedal. The last
set speed will be displayed.
WARNING!
The resume function should be used
only when road and traffic conditions
allow it. Resuming too a high or too a
low speed for current traffic and road
conditions could cause a harsh vehicle
acceleration or deceleration which could
jeopardise driving safety and risk to
cause severe accidents.
Driving and Driver Assistance Systems
Setting the Time Gap
The specified time gap has four different
settings, identified by 4 horizontal bars
that represent 4 different time gaps:
• Maximum (longest) time: 4 bars.
• Long time: 3 bars (default time).
• Medium time: 2 bars.
• Short time: 1 bar.
Based on both time gap, selected by the
driver, and the actual vehicle speed, ACC
calculates the distance to keep from the
vehicle ahead.
If another information covering ADAS
visualization in the main area (textual
pop ups, NAVI information, phone call,
etc...) are displayed, the ACC time gap
symbol shall be displayed in the top right
corner for the time the ADAS in the main
area is covered (see detail in picture).
If system does not detect the presence
of any vehicles ahead, only the bars
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