Land Rover Discovery: Hill descent control (HDC)
Land Rover Discovery (2009–2016) Owner's Manual / Hill descent control (HDC)
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HDC Controls
Hill Descent Control (HDC) is designed to
restrict the vehicle's speed to a set limit
when travelling downhill
Do not attempt a steep descent
if HDC is inoperative or warning
messages are displayed.
Gradient release control (GRC)
With Hill Descent Control (HDC) activated,
if the vehicle is stopped on a slope using
the brake pedal, GRC will become active
(except in the Terrain response system's
Sand program). During a hill asce
Wade sensing
WADE SENSING CONTROLS
Wade sensing should not be used
during off-road driving as rapid
increases in water depth cannot
be detected in time to deliver a
warning message to the driver.
When enter
SEE MORE:
Automatic Transmission Transaxle
/ Component Description
The transmission comprises the main casing which houses all of the
transmission components. The torque converter is located in a separate
converter housing, bolted to the main casing.
ZF 9HP48 Cut-Away View
ZF 9HP48 Sectional View
Fluid pan
Valve block
Planetary gear set 4
Planetary gear se
Selective Catalyst Reduction
(SCR) Components - EU6 only
Diesel Exhaust Fluid (DEF) tank module
Diesel Exhaust Fluid (DEF) level sensor
Diesel Exhaust Fluid (DEF) tank module electrical connection
Diesel Exhaust Fluid (DEF) pressure line connection
Diesel Exhaust Fluid (DEF) injection pump electrical connection
Diesel Exhaust Fluid (DEF) heater el
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