Table of Contents
Advertisement
Driver Assistance Systems
Hill Descent Control (HDC)
HDC maintains vehicle speed while
descending hills during various driving
situations, by actively controlling the
brakes.
HDC is part of the ESC system and has
three possible states:
• Off: function is not enabled and will
not activate.
• Enabled: function is enabled and
ready but activation conditions
are not met, or driver is actively
overriding with brake or throttle
application.
• Active: function is enabled and
actively controlling vehicle speed.
Displayed Information
Apart from the pop-up messages
6
at the centre of the TFT display,
HDC status is represented by icons
at the top left of the TFT display,
in the dedicated area. See "TFT
Display Areas" in section "Dashboard
Instrument and Controls".
Enabling and Activating the
HDC
HDC is enabled by pressing the HDC
switch on LH side of steering wheel.
232
Standard Configuration
Optional Configuration
NOTE:
The figures only show the Standard
Configuration.
The following conditions must also be
met to enable HDC:
• Maximum activation speed: 18 MPH
(30 km/h).
• Parking brake is released.
• Driver door is closed.
HDC enabling is indicated by the
white light with below 3 dashes on
TFT display coming steady on. The
light remains white while the driver
operates the pedal unit to change
the speed, or when driving on a flat
stretch of road between two descents,
or when the descent is over.
Failed enabling is indicated by a
message on display.
Once enabled, when driving the
system automatically activates HDC.
When the vehicle is within a defined
threshold of slope (12%), the
turns green and the current speed
appears below it until the default
speed value set to 5 MPH (8 km/h).
When the vehicle exceeds a defined
threshold of slope (12%), the
turns green and the current speed
appears below it until the default
speed value set to 1.8-2.5 MPH (3-4
km/h).
Therefore, the vehicle speed is
increased or decreased until it reaches
the default value.
light
light
Advertisement
Table of Contents
