Frelander 2. Manual - part 715

Hill descent control (HDC)

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If the brake pedal is depressed, HDC will be 
overridden and the brakes will operate as 
normal. When the brake pedal is released, HDC 
will resume control of the descent.

If HDC is switched off during a descent, HDC 
assistance will fade out gradually. This is to 
prevent loss of control if HDC is switched off in 
error. HDC will resume control when switched 
back on if assistance is still required, but at the 
speed the vehicle is travelling when the pedal is 
released.

When driving off-road HDC can be permanently 
selected, but it will only provide assistance 
when the speed parameters are met.

Warning messages

Brake temperature

In extreme circumstances, the HDC system 
may cause brake temperatures to exceed their 
pre-set limits. If this occurs the warning 
message HDC TEMPORARILY NOT 
AVAILABLE SYSTEM COOLING will be 
displayed in the message centre. HDC will then 
fade out and become temporarily inactive.

If the vehicle is not fitted with a message 
centre, then the amber HDC warning indicator 
will flash.

HDC will remain unavailable until the brakes 
reach an acceptable temperature. Once the 
brakes have reached an acceptable 
temperature, the message will disappear (or 
the warning indicator will extinguish) and HDC 
will, if required, resume operation.

System fault

If a fault is detected in the HDC system, HDC 
FAULT SYSTEM NOT AVAILABLE will appear in 
the message centre.

If the vehicle is not fitted with a message centre 
the amber HDC warning indicator will 
illuminate.

If the fault is detected whilst the system is 
operating HDC assistance will fade out.

If a fault is detected, contact you Land Rover 
Dealer/Authorised Repairer as soon as 
possible.

WARNING

Do not attempt a steep descent if HDC 
is inoperative, or warning messages are 

displayed.

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Traction control

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Traction control

USING TRACTION CONTROL

Electronic Traction Control (ETC)

ETC operates in conjunction with Dynamic 
Stability Control (DSC) and is designed to 
assist when one, or more, wheels have lost 
traction.

If a wheel looses traction, ETC will operate the 
brake on that wheel until it regains traction.

Warning indicator

If a fault is detected within the ETC 
system the warning indicator will 
illuminate.

Before driving off-road

Before venturing off-road it is absolutely 
essential that inexperienced drivers become 
fully familiar with the vehicle's controls. In 
particular, CommandShift, Hill Descent Control 
(HDC), and the Terrain Response system.

Basic information and off-road driving 
techniques can be found in the off-road driving 
handbook available on-line at 
http://www.ownerinfo.landrover.com

Off-road driver training should be undertaken 
by anyone intending to drive off-road. Training 
is available at your nearest Land Rover 
Experience centre. More details can be found at 
http://www.landroverexperience.com

Stability control

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Stability control

PRINCIPLE OF OPERATION

Dynamic Stability Control (DSC)

DSC has two main functions.

Firstly, if a wheel, or wheels, loose traction 
when accelerating, it enhances Traction 
Control by reducing engine torque, and 
applying braking force to individual wheels. 
This further improves the vehicle's ability to 
pull away on slippery, or loose surfaces, and 
reduces the likelihood of wheel spin when 
cornering.

Secondly, DSC will apply braking force to 
individual wheels in order to maintain vehicle 
stability when cornering, changing lanes 
suddenly, or manoeuvring in an emergency. 
This will help to keep the vehicle on the driver's 
intended path, rather than over, or under 
steering.

1. Vehicle fitted with DSC.

2. Vehicle without DSC.

Roll stability control (RSC)

RSC works in conjunction with DSC to try and 
prevent vehicle roll-over. If the system senses 
that the vehicle is approaching roll-over it will 
reduce engine power and use the ABS system 
to reduce the chance of roll-over.

WARNING

DSC is unable to compensate for driver 
errors.

It is the driver's responsibility to drive with due 
care and attention, in a manner which is safe 
for their vehicle, it's occupants, and other road 
users.

WARNING

No electronic system can remove the 
need for safe driving practice. RSC can 
help to maintain control of the vehicle. 

It cannot regain control of the vehicle if it has 
been lost, or overcome driver errors. Always 
drive with due consideration for the prevailing 
road and weather conditions.

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Stability control

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USING STABILITY CONTROL

DSC

DSC is activated automatically each time the 
engine is started, and is automatically selected 
by some of the Terrain Response Special 
programs.

Note: In the majority of driving situations, and 
particularly on-road, it is recommended that 
you do not turn DSC off.

Deactivating DSC

In some driving conditions it may prove helpful 
to deactivate DSC to improve traction. These 
conditions include :-
• Rocking the vehicle out of a hollow.
• Rocking the vehicle out when the wheels 

have sunk into the surface.

• Pulling away in deep snow, or a loose 

surface.

• Driving along deep ruts.
• Driving through deep mud.

To deactivate DSC, press, and 
briefly hold, the DSC button. The 
DSC warning indicator will 

illuminate continuously as a reminder that DSC 
is deactivated.

Note: Deactivating DSC will have no effect 
upon the operation of Traction Control.

Reactivating DSC

DSC is reactivated by :-
• pressing, and briefly holding the DSC 

button.

• starting the engine.
• selecting a new Terrain Response special 

program.

DSC system fault

If a fault is detected the DSC warning lamp will 
illuminate continuously when DSC has not 
been deactivated.

CAUTION

Driving with DSC deactivated puts 
additional loads on the brakes. 
Wherever possible, drive with DSC 

activated.

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