Land Rover Discovery: Adaptive cruise control
The Adaptive Cruise Control (ACC) system
is designed to maintain a gap from the
vehicle ahead, or a set road speed if there
is no slower vehicle ahead. A speed may
be set at between 32 km/h (20 mph) and
180 km/h (112 mph). The set speed will
be displayed in the Message centre.
The system acts by regulating the speed
of the vehicle, using engine control and
the brakes.
ACC is not a collision warning or
avoidance system. Additionally,
ACC will not react to:
- Pedestrians or objects in the
roadway.
- Oncoming vehicles in the same lane.
The ACC system uses a radar sensor,
which projects a beam directly forward of
the vehicle, to detect objects ahead.
The radar sensor is mounted at the front
of the vehicle, behind the duct in the
lower cooling aperture, to provide a clear
view forward for the radar beam.
- Use ACC only when conditions are
favourable, i.e., main roads with traffic
moving in lanes.
- Do not use during abrupt or sharp
turns, e.g., traffic islands, junctions,
areas with many parked vehicles or
areas shared with pedestrians.
- Do not use in poor visibility,
specifically fog, heavy rain, spray or
snow.
- Do not use on icy or slippery roads.
- It is the driver's responsibility to stay
alert, drive safely and be in control of
the vehicle at all times.
- Keep the front of the vehicle free from
dirt, metal badges or objects,
including vehicle front protectors,
which may prevent the radar sensor
from operating.
USING ACC
The system is operated by controls
mounted on the steering wheel. The driver
can also intervene at any time, by the use
of the brake or accelerator pedals.
- LIM: Press to switch between ASL and
ACC. The ACC warning lamp will
illuminate to confirm ACC is
operational. See 63, CRUISE
CONTROL (GREEN).
- SET +: Press to set the vehicle's
current speed as the set speed. While
ACC is enabled, further pressing of the
button will raise the set speed above
the vehicle's current speed. The speed
of the vehicle will gradually increase
to reach the new set speed.
- RES: Press to resume the ACC set
speed after it has been disengaged.
- CAN: Press to cancel but retain the set
speed in the memory.
- Press (-) to decrease the set speed.
The speed of the vehicle will gradually
decrease to reach the new set speed.
- Press to decrease the Follow mode
gap.
- Press to increase the Follow mode
gap.
READ NEXT:
When in Follow mode, the vehicle
may not decelerate automatically
to a stop, nor will the vehicle
always decelerate quickly enough
to avoid a collision.
Once a set speed has been selected, the
driver
It is the driver's responsibility to
select a gap appropriate to the
driving conditions.
Four gap settings are available. The
selected gap setting is displayed in the
Message centre when the gap adjus
RES should only be used if the
driver is aware of the set speed and
intends to return to it.
By pressing the RES button after ACC has
been cancelled (e.g. after braking), ACC
will become active again
SEE MORE:
SPECIAL TOOL(S)
PART(S)
REMOVAL
NOTES:
Some variation in the illustrations may occur, but the essential
information is always correct.
Some components shown removed for clarity.
All vehicles
WARNING:
Do not work on or under a vehicle supported only by a jack.
Always support the vehicle o
Vacuum exhaust valve
Pressurized oil outlet to cylinder block
Center plate
Oil pressure control solenoid
Control ring
Vanes and rotor assembly
Oil pump cover
Control spring
Oil pump housing
Vacuum port connection to cylinder block
Vacuum pump vanes
Vacuum pump housing
Pump drive spro