Jaguar XJ (2008 year). Manual - part 50

201

Touch-screen Climate Control

R

CLIMATE OPTIONS

The Options button is 
displayed in place of the °C/°F 
button if the optional smog 

sensor and/or rear climate control panel 
(4-zone system) are fitted.

Touching Options displays the Celsius 
(°C) and Fahrenheit (°F) selection buttons. 
The display also shows either the rear 
control panel buttons or the smog sensor 
setting or both.

SMOG SENSING

Where fitted, the smog sensor detects 
road traffic pollutants and automatically 
selects air recirculation when the level of 
pollution outside the vehicle reaches a 
certain level. The level of pollution at 
which the smog sensor will respond can 
be adjusted on the Options screen.

Once the level of pollutants decreases, air 
recirculation will switch off (subject to the 
normal operation of the automatic climate 
control system).

To adjust smog sensitivity: Touch the 
+ button to increase sensitivity to low 
smog levels. Touch the – button to 
decrease sensitivity.

Caution: Don’t set the smog sensor to 
a needlessly high level in cold and 
damp conditions: this could result in 
interior condensation.

REAR CLIMATE PANEL

Controlling the rear climate panel from 
the touch-screen

On the ‘Climate Options’ screen (see 
page 201) the ‘Rear Climate Control’ 
buttons provide control of the rear 
system:
• Touch the left-hand button to switch 

the rear control panel on or off.

• Touch Lock Panel to lock the rear 

climate control panel. This prevents 
rear passengers from altering the rear 
climate settings, until the next time 
the ignition is switched on.

• Touching Match Driver causes the 

rear zones to adopt the same settings 
as the driver’s zone. Any adjustments 
made directly on the rear panel will 
override these settings.

• Touch Adjust Settings to alter the 

settings of the rear zones. A 
simulation of the rear control panel 
will be displayed on the touch-screen.

Touch-screen Climate Control

202

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Simulated rear control panel

The simulation of the rear climate control 
panel allows all of the rear climate 
functions to be controlled via the 
touch-screen.

Operation of these touch-screen buttons 
is as described for the rear panel itself in 
the owner’s handbook.

Note: It is not possible to make 
adjustments on the actual rear panel while 
the touch-screen simulation of the panel 
is displayed. The touch-screen display will 
revert to the main climate screen 
30 seconds after the last touch.

203

Inertia Switch

R

Roadside Emergency

INERTIA SWITCH OPERATION

In the event of an accident, the inertia 
switch may trip (depending on the 
severity and type of impact), isolating 
operation of the fuel pump. Once the 
switch has tripped it must be reset before 
attempting to restart the engine.

The inertia switch is located behind the 
trim on the left-hand side of the vehicle, 
forward of the front door post, below the 
facia. A finger access hole in the trim 
allows the driver to reset the switch.

To Reset the Switch

!

WARNING:

To avoid the possibility of fire or 
personal injury, do not reset the inertia 
switch if you see or smell fuel.

If no fuel leak is apparent, reset the inertia 
switch as follows:

1. Turn the ignition switch to position 0.

2. Press down the red reset button on 

the top of the inertia switch.

3. Turn the ignition switch to position II, 

pause for a few seconds, then return 
the key to position 0.

4. Make a further check for fuel leaks.

JAG0647

Emergency Starting

204

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Emergency Starting

ROLLING START

This vehicle is fitted with automatic 
transmission. In the event of a discharged 
battery preventing a normal engine start, 
the vehicle cannot be started by pushing 
or towing. Either use jump leads 
connected to a booster battery (e.g. on 
another vehicle) or fit a fully charged 
battery.

USING JUMP LEADS

Both the booster and discharged battery 
should be treated with great care when 
using jump leads. Always use high quality 
leads capable of carrying the starter 
current of the vehicle to be started.

!

WARNING:

To avoid serious injury use extreme 
caution when removing the booster 
cables as the engine will be running on 
the previously disabled vehicle. This 
means that you will be working close to 
components which are moving at high 
speed, carry high voltage, or may be 
hot.

Before commencing, the following 
precautions must be taken:
• When the battery of another vehicle is 

being used, ensure that the vehicles 
do not touch. Alternatively, remove 
the charged battery and place near to, 
not on, the vehicle with the 
discharged battery.

• Ensure that both vehicles have all 

electrical services OFF, the parking 
brakes applied and the transmission 
in the P (park) position.

• Where the jump leads are of a 

different colour, e.g. red and black, 
use red for positive (+). This aids 
identification and helps to avoid 
crossing positive (+) to negative (–). 
Take extra care to avoid crossing the 
polarity when using cables of the 
same colour.

Caution: If using a jump start vehicle, 
under no circumstances should the 
vehicles come into contact with each 
other. This could establish an earth 
connection, which may cause sparks 
and damage.

Caution: Do not run the engine of the 
jump start vehicle when boost starting 
a Jaguar vehicle. If the jump start 
vehicle’s engine is running and the 
jump leads are disconnected, damage 
to the Jaguar vehicle’s electrical 
system will result.

Note: The booster battery must be of the 
12 volt type.