Jaguar S-Type. Manual - part 25

107

Cruise (Speed) Control

Cruise (Speed) Control

STEERING WHEEL SWITCHES

The cruise (speed) control system can be
used by the driver to maintain a selected
vehicle speed above 25 km/h (16 mph),
without the driver having to use the
accelerator.

Switches on the steering wheel allow the
driver manual control of the system.
Brake and clutch operations also
influence the cruise control system.

RESUME (1) to resume the set speed
retained in the memory.

SET (2) to set the speed or increase or
decrease the set speed when the speed
has been set.

CANCEL (3) cancels cruise control, but
retains the set speed in the memory.

Setting vehicle speed

WARNING:

Only use cruise control when
conditions are favourable; for example,
straight, dry, open roads with light
traffic.

When you are travelling at the speed you
require, which must be above 25 km/h
(16 mph), press the SET button.

Cruise control will engage and maintain
the set speed and you can remove your
foot from the accelerator pedal.

Note: Cruise control will automatically
disengage when the brake pedal is
pressed or when the vehicle speed falls
below 25 km/h (16 mph).

Changing the set speed

There are three ways to change the set
speed:
• Accelerate or decelerate to the

desired speed then press the SET (+)
button.

• Increase or decrease the speed by

pressing and holding either SET (+) or
(-) until the desired speed is obtained,
then release the switch.

• Increase or decrease the speed in

steps of 2 km/h (1mph) by briefly
pressing either the SET (+) or (-) until
the desired speed is obtained.

Cruise (Speed) Control

108

Resuming the set speed

If the vehicle is accelerated above the set
speed, then the set speed will be resumed
when the accelerator pedal is released.

If CANCEL is pressed, or the brake or
clutch pedal is pressed, the cruise control
will disengage, but the set speed memory
will be retained. Press RESUME and the
vehicle will return to the set speed.

Note: Cruise control will not resume at
speeds below 25 km/h (16 mph).

RESUME will not operate if the ignition
has been turned OFF.

Caution:
• RESUME should only be used if the

driver is aware of the set speed and
intends to return to it.

• It is not recommended to resume

set speed when a low gear is
selected as excessive engine
speeds will occur.

Cruise control will switch OFF and clear
the memory when:
• The ignition is switched to position 0.
• A fault occurs. The cruise control

system will switch OFF and cannot be
used until the fault is cleared.

Cruise control automatic switch off

Cruise control will switch off, but the set
speed will remain in the memory when:
• The CANCEL button is pressed.
• The brake pedal is pressed.
• Speed falls below 25 km/h (16 mph).
• Neutral, Park or Reverse gear

positions are selected.

• Dynamic Stability Control is

operating.

• The difference between the actual and

set speed is too great.

• When the vehicle reaches a maximum

speed of 192 km/h (120 mph).

• The accelerator pedal is used to

accelerate beyond the set speed for
too long a period.

109

Adaptive Cruise Control

Adaptive Cruise Control

ADAPTIVE CRUISE CONTROL
(ACC)

The Adaptive Cruise Control system is
designed to aid the driver to maintain a
gap from the vehicle ahead, or a set road
speed if there is no slower vehicle ahead.
The system is intended to provide
enhanced operation of the vehicle when
following other vehicles which are in the
same lane and travelling in the same
direction.

WARNING:

Adaptive Cruise Control is not a
collision warning or avoidance system.
Additionally, Adaptive Cruise Control
will not detect:
• Stationary or slow moving vehicles

below 10 km/h (6 mph).

• Pedestrians or objects in the

roadway.

• Oncoming vehicles in the same

lane.

The Adaptive Cruise Control system is
based on the use of a radar sensor which
projects a beam directly forward of the
vehicle so as to detect objects ahead.

The radar sensor is mounted behind a
cover on the left-hand side of the lower
cooling aperture, to provide a clear view
forward for the radar beam.

The radar is approved under Federal
Communications Commission (FCC)
rules. Changes or modifications not
expressly approved by the party
responsible for compliance could void the
user’s authority to operate the equipment.
• Only use Adaptive Cruise Control

when conditions are favourable, that
is, straight, dry, open roads with light
traffic.

• 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 sensor from
operating.

• Do not use ACC when entering or

leaving a highway.

Steering wheel switches

Adaptive Cruise Control

110

The system is operated by switches
mounted on the steering wheel. The driver
can also intervene at any time by use of
the brake or accelerator pedals.

The steering wheel switches operate as
follows:

RESUME (1): Resume set speed.

SET + or SET - (2): Set the speed or
increase (+) or decrease (-) the set speed.

CANCEL (3): Cancels without erasing
memorised speed.

(4): Gap increase or decrease.

Setting a speed

Accelerate as normal until the required
speed is reached.

Press the SET + button (2) briefly and the
vehicle speed will then be stored in the
memory and the system engaged. The set
speed will be displayed on the message
center:

Entering the follow mode

WARNING:

When in follow mode, the vehicle will
not decelerate automatically to a stop,
nor will the vehicle always decelerate
quickly enough to avoid a collision
without driver intervention.

Once a set speed has been selected, the
driver can release the accelerator and the
set road speed will be maintained.

When a vehicle ahead enters the same
lane or a slower vehicle is ahead in the
same lane, the vehicle speed will be
adjusted automatically until the gap to the
vehicle ahead corresponds to the preset
gap. The vehicle is now in ‘follow mode’.

The warning indicator in the
instrument pack will be
illuminated.

The vehicle will then maintain the
constant time gap to the vehicle ahead
until:
• The vehicle ahead accelerates to a

speed above the set speed.

• The vehicle ahead moves out of lane

or out of view.

• The vehicle ahead slows so that ‘low

speed automatic switch off’ occurs.

• A new gap distance is set.

If necessary, the vehicle brakes will be
automatically applied to slow the vehicle
in order to maintain the gap to the vehicle
in front.

SETSPEED

80 KM/H (50 MPH)

GAP

The message center will
display the gap set.

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