Ford Focus Owner's Handbook Manual page 163

Adaptive cruise control (ACC)
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The distance between you and the vehicle
detected in front is maintained by a
variable setting. There are five steps which
are represented by horizontal bars
displayed in the information display. One
bar indicates the smallest gap and five
bars indicates the largest gap. These bars
are shown empty when in standby mode
and filled when in active mode.
If no vehicle is detected in front, then only
your vehicle is displayed in the information
display below the bars. The system will
maintain the set speed when conditions
permit. The set gap is maintained and
displayed.
If a vehicle is detected by the sensor, the
display will show another vehicle above
the horizontal bars:
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This is a follow mode, and the system will
accelerate or decelerate as necessary to
maintain the set gap.
Press switch E to decrease the gap or
switch D to increase the gap. The gap
selected will be represented by the
number of bars in the display.
Note: The recommended gap setting is
four or five bars.
Temporarily deactivating the
system
Note: The system is cancelled when the
gear lever is moved to a neutral position
or if the accelerator pedal or clutch is
depressed for a long period of time.
Press either the brake or switch F to
cancel the system. The system will return
to standby mode allowing you full manual
control of the vehicle. The set speed and
gap setting are retained in the memory.
Press switch F again to resume. The
system will resume with the previously set
speed and vehicle gap setting if conditions
permit.
Switching the system off
Press switch C to turn the system off.
Note: When deactivating the system by
pressing switch C, the stored speed is
not retained.
Automatic deactivation
Note: If the engine speed drops too low,
a message is displayed in the information
display instructing you to change down a
gear (manual transmission only). If you do
not follow this recommendation then the
system will go into automatic deactivation
mode.
Note: The system will not operate if the
electronic stability programme (ESP) has
been manually switched off.
The system is dependent on various other
safety systems, for example ABS and
ESP. If any of these systems are
malfunctioning or reacting to an
emergency, the system is automatically
deactivated.
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