Land Rover Lr3 Owners Handbook 2004 Rover

201
Hill Descent Control
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Hill Descent Control in action
HDC should be used in conjunction with an 
appropriate gear selection, see BASIC 
OFF-ROAD TECHNIQUES, 239.
During a hill descent, if engine braking is 
insufficient to control the vehicle speed, HDC 
automatically operates the brakes to slow the 
vehicle and maintain a speed relative to the 
selected gear range and the accelerator pedal 
position.
While HDC is controlling the vehicle speed, 
descent speeds can be varied using the...

Hill Descent Control
202
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If a fault is detected in the HDC system, ’HDC 
FAULT SYSTEM NOT AVAILABLE’ will appear in 
the display or the amber HDC warning indicator 
will illuminate if no message center is fitted. If 
the fault is detected while the system is active, 
HDC will then fade out. Do not attempt a steep 
descent when HDC is unavailable or use a very 
low gear and/or the footbrake. If a fault has 
been detected, consult your Land Rover 
Retailer at the earliest opportunity.
HDC fade-out
HDC...

203
Air Suspension
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Air Suspension
AIR SUSPENSION
The air suspension system maintains the 
correct vehicle height by controlling the 
quantity of air in the vehicle’s air springs.
Unless stated otherwise, height changes may 
only be made while the engine is running and 
the driver and passenger doors are closed.
When the air suspension system lifts the 
vehicle, it normally uses compressed air stored 
in its reservoir. The suspension will rise much 
more slowly if this reservoir is depleted due to...

Air Suspension
204
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WARNING
The driver should ensure that the vehicle is 
clear of obstacles and people before lowering 
the vehicle. Remember that, for example, the 
clearance under the floor and bumpers, and 
in the wheel arches, will be 105 mm (4.1 in.) 
less at Access height than at Off-road height.
The suspension will automatically rise from 
Access height when the vehicle speed exceeds 
10 km/h (6 mph).
If Access height was selected directly from 
Off-road height, the system will return to...

205
Air Suspension
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Using the Control
1.Raise/lower Switch
2.Raising Symbol
3.Off-road Symbol
4.On-road Symbol
5.Access Symbol
6.Lock Symbol
7.Lowering Symbol
Suspension Heights
The raise/lower switch (1) is used to move up 
or down through the suspension heights. 
Symbols (3), (4) or (5) will be lit to show the 
height selected. A symbol indicating the 
suspension height will also be displayed in the 
message center
* when Off-road, Access or 
Crawl is selected.
Symbols (2) or (7) will be lit to show...

Air Suspension
206
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Selecting and Cancelling Crawl (Locked at 
Access Height)
When the suspension is at On-road or Access 
height and the vehicle speed is below 35 km/h 
(22 mph), press the raise/lower switch (1) in 
the down direction for one second. Symbol (5) 
and (6) will be lit to confirm the selection.
Crawl can be cancelled manually by pressing 
the raise/lower switch in the up direction for 
one second. Symbol (6) will extinguish.
Note: When Crawl is cancelled, the suspension 
will rise to...

207
Air Suspension
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Door Open Override
If a door is opened during a height change while 
the vehicle is at rest, the height change will 
stop.
The symbol for the target height (3, 4 or 5) will 
remain lit and the lifting symbol (2) or the 
lowering symbol (7) will flash.
The height change will resume if all of the doors 
are closed within 90 seconds.Extended Mode
If the vehicle is grounded and traction control is 
induced, the system automatically pumps air 
into the air springs to raise the vehicle...

Air Suspension
208
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Suspension Freeze
If the system is attempting to change the 
suspension height and it detects that the 
suspension is prevented from moving, the 
system will freeze all movements.
This can be caused by attempting to lower the 
vehicle onto an obstacle or attempting to lift the 
vehicle against an obstruction.
The symbols behave in the same way described 
in Extended mode and the same message will 
be displayed on the message center.
* As in 
Extended mode, to exit this freeze state,...

209
Terrain Response
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Terrain Response
TERRAIN RESPONSETM SYSTEM*
The Terrain Response system is permanently 
active, continuously providing benefits in 
traction and vehicle control. These can be 
further enhanced for specific on- and off-road 
driving conditions by the selection of special 
programs, using one simple driver interface.
This allows the driver to ’tell’ the vehicle what 
sort of terrain is to be driven over. Based on the 
selected special program, the system optimises 
the vehicle set-up...

Terrain Response
210
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Terrain Response is designed to benefit the 
driver, regardless of the level of off-road driving 
experience. The enhanced traction system, with 
the control of many system parameters through 
one simple driver input, coupled with specific 
advice from the message center, will aid drivers 
with limited off-road experience. Additionally, 
the system can back-up the skills of 
experienced drivers, who will also benefit from 
the wider performance envelope available 
through the...