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HDC (HILL DESCENT CONTROL)
SYSTEM
The HDC (Hill Descent Control) system
was designed for off-road driving at low
speeds with the 4WD LOW operating
mode selected.
The HDC system keeps the speed of the
car constant when driving down hill in
different driving conditions and controls
the car speed by actively operating the
brakes.
The HDC system has three different
states:
"Off" (the system is not enabled and
will not activate);
"Enabled" (the system is enabled and
ready, but the activation conditions
are not satisfied, or the driver is
pressing the brake pedal or the
accelerator);
"Active" (the system is enabled and
actively controls the car speed).
82
Enabling the system
The system is enabled by pressing the
button located on the central tunnel
fi g. 74, and if the following conditions are
satisfi ed:
the Selec-Terrain™ device is in 4WD
LOW mode;
the vehicle speed is below 12 km/h;
the electric parking brake (EPB) is
deactivated;
the driver side door is closed.
74
System Activation
Once enabled, the HDC system will
activate automatically if the car is driven
downhill on a steep slope, higher than
4%.
The speed set for the HDC system can
be selected by the driver and can be
adjusted within the thresholds by pressing
down on the accelerator pedal or the
brake pedal.
Manual driver control
The driver can cancel the activation speed
of the HDC system at any moment by
pressing down on the accelerator pedal or
the brake pedal.
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