User Manual - Page 290

For 2014 VOLVO V40 CROSS COUNTRY.

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08 Starting and driving
08
288
* Option/accessory, for more information, see Introduction.
All Wheel Drive (AWD)*
All Wheel Drive (AWD – All Wheel Drive)
means that the car is driven by all four wheels.
All-wheel drive is always engaged.
AWD principle
13
.
The power is automatically distributed
between the front and rear wheels. An elec-
tronically controlled clutch system distributes
the power to the wheels that have the best
grip on the current road surface. This pro-
vides the best traction and prevents wheel
spin. Under normal driving conditions, the
majority of power is transmitted to the front
wheels.
All-wheel drive improves driving safety in rain,
snow and icy conditions.
Hill Descent Control (HDC)
HDC can be compared to an automatic
engine brake. When you release the accelera-
tor on downhill gradients the car is normally
braked by means of the engine striving for low
engine idling speeds, so-called engine brak-
ing. But the steeper the road and the more
load there is in the car, the faster the car rolls
despite engine braking. In order to then
reduce speed the driver has to assist using
the footbrake.
General
The function makes it possible to increase/
reduce speed on steep downhill gradients,
with a foot only on the accelerator pedal,
without using the footbrake. The sensitivity of
the accelerator pedal decreases and
becomes more precise by means of the full
actuation of the pedal being restricted to
adjusting engine speed within a limited range.
The brake system brakes itself and provides
the car with a low and even speed, so allow-
ing the driver to fully focus on steering.
HDC is particularly helpful on steep gradients
with an uneven road surface and slippery
sections. E.g. when launching a boat on a
trailer from a ramp.
WARNING
HDC does not work in all situations but is
designed merely as a supplementary aid.
The driver always bears ultimate responsi-
bility for ensuring that the vehicle is driven
safely.
Function
HDC is engaged or disengaged using a
switch on the centre console. An indicator
lamp in the button illuminates when the func-
tion is switched on.
When HDC is working normally the
combined instrument panel's symbol
illuminates combined with the text message
Hill descent control ON.
13
The figure is schematic - details may vary depending on market and model.
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