2009 JAGUAR XF wheel

153
Rear view camera

Camera overlays
A.Solid line: This is the projected wheel
trajectory.
B. Dotted line: This is the safe working width
of the vehicle (includi ng standard exterior
mirrors).
C. Boot access guideline: Do not reverse the
vehicle beyond this point if access to the
boot is required.
D. Rear bumper.
E. Parking sensor activa tion: A red area will
appear on the camera image, to indicate
which rear parking sensor(s) has been
activated.
C
BA
D
JAG1651
C
B
A
D
E
JAG1652
CAUTIONS
If, after the ignition has been switched
off, the steering wheel is turned, the
projected wheel trajecto ry graphics (A) will
display as being straight (as in the second
illustration), until the vehicle is driven for
approximately 10 seconds.

155
Driving hints

ECONOMICAL DRIVING
There are two main factors which influence fuel
economy, the way the vehicle is driven and
maintenance.
Driving tips for economy
•Avoid unnecessary jour neys, especially
short stop-start trips.
• Accelerate smoothly and gently from a
stand still.
• Allow time to brake gently and smoothly.
• Be aware of traffic and road conditions
ahead, and take action in time to avoid
hard braking or acceleration.
• When stationary apply the park brake, and
select neutral.
• Turn off the air conditioning when not
needed.
Maintenance and fuel economy
Regular servicing by a Dealer/Authorised
Repairer, along with regular checks by the
driver are essential fo r vehicle longevity and
fuel economy.
The condition of the engine (oils, filters, spark
plugs, settings etc.) tyre pressures, and wheel
alignment, will all have a bearing on fuel
economy. For this reason it is essential that the
vehicle is checked regularly by the driver and
serviced by an approved Dealer/Authorised
Repairer at the correct intervals.
Note: If you are in any doubt about the
maintenance requirement s, intervals, or
checks required, contact your Dealer/
Authorised Repairer for advice.

Cruise control
156

PRINCIPLE OF OPERATION
Cruise control enables the driver to maintain a
constant road speed without using the
accelerator pedal. This is particularly useful for
motorway cruising, or for any journey where a
constant speed can be maintained for a lengthy
period.
The cruise (speed) contro l system can be used
by the driver to maintain a selected vehicle
speed above 30 km/h (18 mph).
Adjustment controls on the steering wheel
allow the driver manual control of the system.
Brake operations also influence the cruise
control system.
1. SET - The speed adjustment control thumb
wheel is used to engage cruise control
initially by rolling it upw ards. It is also used
to increase ( +) or decrease ( -) the set
speed until the desired speed is obtained.
2. CANCEL - Cancels cruise control but
retains the set speed in memory.
3. RESUME - Resumes the cruise control set
speed after it ha s been cancelled.
USING CRUISE CONTROL
Setting vehicle speed
When you are travelling at the speed you
require, roll the speed adjustment control ( 1)
upwards or downwards to increase or decrease
speed.
Cruise control will engage and maintain the set
speed and you can remove your foot from the
accelerator pedal.
Note: Cruise control w ill automatically
disengage when the brake pedal is pressed or
when the vehicle speed falls below 30 km/h
(18 mph).
E9708823
1
WARNING
Only use cruise control when
conditions are favourable, for
example, straight, dry, open roads
with light traffic.
In certain conditions, such as a steep
downhill gradient, the vehicle speed
may exceed the set cruising speed.
This is because engine braking is unable to
maintain or reduce the vehicle speed. Driver
intervention may be required.

159
Adaptive cruise control (ACC)

PRINCIPLE OF OPERATION
The Adaptive Cruise Control (ACC) 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.
The ACC system uses a radar sensor, which
projects a beam directly forward of the vehicle
to detect objects ahead.
The radar sensor is m ounted centrally behind
the bumper cover above the cooling aperture,
to provide a clear view forward for the radar
beam.
USING ACC
The system is operated by adjustment controls
mounted on the steering wh eel. The driver can
also intervene at any time by use of the brake
or accelerator pedals. The steering wheel
adjustment controls operate as follows:
1. SET - Rotate the thumbwheel upwards ( +)
or downwards ( -), to increase or decrease
speed, until the desire d speed is achieved.
2. Gap increase or decr ease. Four settings
available by adjusting the thumb wheel.
3. CANCEL - Cancels but retains the set
speed in memory.
4. RESUME - Resumes the set speed after it
has been cancelled.
WARNING
ACC is not a collision warning or
avoidance system. Additionally, ACC
will not react to:
• Stationary or slow moving vehicles below
10 km/h (6 mph).
• Pedestrians or objects in the roadway.
• Oncoming vehicles in the same lane.
CAUTION
Only use ACC when conditions are
favourable (i.e. main roads with free
flowing traffic).
Do not use in poor visibility, specifically
fog, heavy rain, spray or snow.
E94163
Do not use on icy or slippery roads.
It is the drivers re sponsibility 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 motorway.
CAUTION
E97090
12
34

161
Adaptive cruise control (ACC)

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.
• A new gap distance is set.
If necessary, the vehicle brakes will be
automatically applied to slow the vehicle to
maintain the gap to the vehicle in front.
The maximum braking which is applied by the
ACC system is limited and can be overridden by
the driver applying the brakes, if required.
Note: Driver braking will cancel ACC.
If the ACC system predicts that its maximum
braking level will not be sufficient, then an
audible warning will sound while the ACC
continues to brake. DRIVER INTERVENE will be
displayed on the message centre. The driver
should take immediate action.
When in follow mode, the vehicle will
automatically return to the set speed when the
road ahead is clear, for instance when:
• The vehicle in front accelerates or changes
lane.
• The driver changes lane to either side or
enters an exit lane.
The driver should intervene if appropriate.
Changing the follow mode set gap
The gap from the vehicle ahead can be
decreased or increased by rolling the
thumbwheel on the stee ring wheel. Four gap
settings are available and the selected gap
setting will be displaye d on the message centre
when either ACC button is pressed. Each gap level is indicated by an
additional
chevron in front of th e vehicle icon in the
message centre (one chevron (gap level 1)
being the shortest, four chevrons (gap level 4)
being the longest). A fter the ignition is
switched on, the default gap (gap level 3) will
be automatically selected ready for ACC
operation.
Note: When the ignition is switched off, the
gap setting will revert to the default setting
(gap level 3) when switched on again.
Note: It is the driver’s responsibility to select a
gap appropriate to the driving conditions.
Overriding the speed and follow mode
The set speed and gap ca n be overridden by
pressing the accelerator pedal when cruising at
constant speed or in follow mode. If the vehicle
is in follow mode, the instrument warning
indicator will go out when the ACC is
overridden by the driver using the accelerator
and CRUISE OVERRIDE will be displayed on
the message centre. When the accelerator is
released the ACC functi on will operate again
and vehicle speed will decrease to the set
speed, or a lower spee d if follow mode is
active.
WARNING
Whenever the driver is overriding the
ACC by depressing the accelerator
pedal, the ACC will not automatically
apply the brakes to ma intain separation from
any vehicle ahead.

165
Adaptive cruise control (ACC)

ADVANCED EMERGENCY BRAKE
ASSIST
On vehicles fitted with Advanced Emergency
Brake Assist, brake response is improved
during emergency braking when a moving
vehicle is detected close ahead.
Advanced Emergency Brake Assist activates If
the risk of collision increases after the
FORWARD ALERT warning is displayed.
See FORWARD ALERT FUNCTION (page 164).
The brakes are automatica lly applied gently in
preparation for rapid braking (which may be
noticeable). If the brake pedal is then pressed
quickly, then braking is implemented fully,
even if the pressure on the pedal is light.
See HINTS ON DRIVING WITH ABS
(page 144).
Advanced Emergency Brake Assist is available
at speeds above approximately 7 km/h (5 mph)
and will function even if Forward Alert and
Adaptive Cruise Control are switched off. A
fault with the system will be indicated by the
warning FORWARD ALER T UNAVAILABLE
appearing in the mess age centre. Advanced
Emergency Brake Assist will not be available
until the fault is rectified.
WARNING
Advanced Emergency Brake Assist, is
an additional safety system and is not
intended to relieve the driver of the
responsibility for exer cising due care and
attention when driving.
CAUTION
The system may not react to slow
moving vehicles and will not react to
stationary vehicles or vehicles not
travelling in the same direction as your vehicle.
Advanced Emergency Brake Assist can
only improve braking performance if the
driver applies the brakes.
Warnings may not appear if the distance
to the vehicle ahead is very small or if
steering wheel and pedal movements
are large (e.g. to avoid a collision).
Advanced Emergency Brake Assist
utilises the same radar sensor as
Adaptive Cruise Control and Forward
Alert - the same limita tions of performance
apply.
See PRINCIPLE OF OPERATION (page 159).
See USING ACC (page 159).
See FORWARD ALERT FUNCTION
(page 164).

167
Automatic speed limiter (ASL)

PRINCIPLE OF OPERATION
ASL can be used in a situation where varying
vehicle speed is likely but a maximum speed
must not be exceeded. For example, where a
local speed limit is 80 km/h (50 mph), the set
speed could be at that limit or just under.
If ASL is not selected, cr uise control is always
available by simply rotating the thumb wheel
on the right-hand side of the steering wheel to
set a cruising speed. The ASL button allows the
driver to select betwee n cruise control and the
automatic speed limiter. The ASL can be set to
any speed between 30 km/h (18 mph) and 240
km/h (150 mph).
Note: Although ASL only operates at speeds
between 30 km/h (18 mph) and 240 km/h (150
mph), the maximum speed can be set when the
vehicle is stationary.
When ASL is selected, the warning indicator in
the instrument panel will illuminate. When the
ASL button is pressed ag ain, the light will
extinguish, ASL will be cancelled and cruise
control will be available again.
USING THE ASL
Setting a speed limit
• Press the ASL button.
• Use the thumb wheel ( 1) to set the
required speed. The message centre
display in the instru ment panel will show
the selected speed.
• The set speed can be adjusted at any time
by rotating the thumb wheel (1).
WARNINGS
Automatic Speed Limiter (ASL) set
speeds must be within local speed
restriction limits. The driver must
always ensure that a safe speed is set, taking
into account the prevailing traffic and road
conditions.
In certain conditions, such as a steep
downhill gradient, the vehicle speed
may exceed the set speed limit. This
is because engine br aking is unable to
maintain or reduce the vehicle speed. Driver
intervention may be required.
E94156
E9709223
1

Driving dynamics
170

DYNAMIC MODE
(V8 petrol and diesel vehicles only)
Press to operate. Dynamic mode
co-ordinates the vehicle's control
systems to deliver a high
performance driving experience. This setting
enhances key vehicle systems so that the
vehicle's full potential can be exploited. The
vehicle's responses are aimed at involving the
driver more in focused and purposeful driving,
helping swift progress.
Note: When the transmission is set to
permanent manual mode (i.e. using the
paddles to change gear while in Sport mode)
and Dynamic mode is selected, transmission
upshifts are fully controlled by the driver. This
means that the transmissi on will not change up
a gear automatically, even when the vehicle's
rev limit is reached. When the rev limit is
reached, the gear position indicator in the
message centre will glow amber, to indicate
that the next gear should be selected.
Note: Dynamic mode cannot be active at the
same time as Winter m ode. Dynamic mode will
remain selected for approximately six hours
after the ignition is swit ched off, after which
point it will need to be reselected if required.
STABILITY CONTROL
Dynamic Stability Control (DSC)
Dynamic Stability Contro l (DSC) is operational
whenever the engine is running, unless it has
been manually switched off. When the system
is operating, the warn ing indicator in the
instrument panel will flash.
The DSC system controls the Anti-lock Braking
System (ABS), traction control and yaw control
of the vehicle.
The DSC system assists the driver in retaining
directional control of th e vehicle in situations
where the vehicle is sliding (understeer or
oversteer). It must not encourage the driver to
drive beyond the limit of adhesion or at speeds
higher than those suitable for the prevailing
road and traffic conditions.
DSC applies braking pres sure to individual
wheels if excessive variation is detected. This
ensures that the vehicle follows the driver’s
intended direction of travel as closely as
possible.
Traction control will intervene to control wheel
spin by automatically reducing the power
output from the engine and applying braking to
individual wheels. This improves acceleration,
particularly on surfaces with uneven friction
(e.g. one wheel on ice with another on tarmac).
Note: For recommended DSC mode selection,
refer to the JaguarDri ve Control scenarios
section in this handbook.
WARNING
The fact that the vehicle is fitted with
DSC, must never allow the driver to
be tempted into taking risks which
could affect his or her sa fety or that of other
road users. In all cases, it remains the driver’s
responsibility to drive sa fely according to the
prevailing conditions.