Seat Leon 5D 2012 Owners Manual

90Opening and closing
Changing the battery
Fig. 46 Vehicle key:
opening the battery com-
partment
Fig. 47 Vehicle key:
removing the battery
SEAT recommends you ask a specialised workshop to replace the battery.
The battery is located to the rear of the vehicle key, under a cover.
Changing the battery
● Unfold the vehicle key shaft
⇒ page 88.
● Remove the cover from the back of the vehicle key
⇒ Fig. 46 in the direc-
tion of the arrow ⇒ 
.
● Extract the battery from the compartment using a suitable thin object
⇒  Fig. 47. ●
Place the new battery in the compartment as shown ⇒ Fig. 47, pressing
in the opposite direction to that shown by the arrow ⇒ 
.
● Fit the cover as shown ⇒ Fig. 46, pressing it onto the vehicle key casing
in the opposite direction to that shown by the arrow until it clicks into place.
CAUTION
● If the battery is not changed correctly, the vehicle key may be damaged.
● Use of unsuitable batteries may damage the vehicle key. For this reason,
always replace the dead battery with another of the same voltage, size and
specifications.
● When fitting the battery, check that the polarity is correct.
For the sake of the environment
Please dispose of your used batteries correctly and with respect for the envi-
ronment. 
Synchronising the vehicle key
If the button  is pressed frequently outside of the vehicle range, it is pos-
sible that the vehicle can no longer be locked or unlocked using the key. In
this case, the key must be resynchronised as described below:
● Unfold the vehicle key shaft
⇒ page 88.
● If necessary, remove the cover from the driver door lever
⇒ page 97.
● Press the button 
on the vehicle key. For this, it must remain with the
vehicle.
● Open the vehicle within one minute using the key shift. The key has
been synchronised.
● If necessary, fit the cap. 

91
Opening and closing
Remote unlocking/Locking
Fig. 48 Remote control
key: Buttons
Fig. 49 Remote control
key: Buttons
– To unlock the vehicle, press the 
button ⇒ Fig. 48.
– To lock the vehicle, place the selector lever in position P (auto-
matic gearbox) and press button 
⇒ .
– To lock the vehicle without the anti-theft security system*, press
button 
again
for the next 2 seconds
.
– To unlock the rear lid, press and hold the button 
for at least
one second. The vehicle will be locked again automatically if you do not open one of the
doors or the rear lid within 30 seconds after unlocking the car. This function
prevents the vehicle from remaining unlocked if the unlocking button is
pressed by mistake. This is not valid if the button

is held down for at
least one second.
In vehicles with a security central locking feature (selective unlocking of
side doors) ⇒ page 91, when the button 
is pressed once, only the driv-
er door and the fuel tank flap are unlocked. When the button is pressed a
second time, all the vehicle doors are unlocked.
WARNING
Do not leave anyone (especially children) in the vehicle if it is locked from
the outside and the anti-theft security system* is enabled, as the doors
and windows cannot then be opened from the inside. Locked doors could
delay assistance in an emergency, potentially putting lives at risk.
Note
● Do not use the remote control key until the vehicle is visible.
● Other functions of the remote control key ⇒ page 101, Convenience
opening/closing. 
Selective unlocking system
The selective unlocking system allows you to only unlock the driver
door and the fuel tank flap. All other doors and the rear lid remain
locked.
Unlocking the driver door and tank flap
– Press button 
on the remote control key
once, or turn the key
once to open. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

92Opening and closing
Unlocking all the doors, the rear lid and the tank flap
simultaneously.
–Within 5 seconds, press button 
on the remote control key
twice, or turn the key to open twice within 5 seconds.
The anti-theft security system* and the anti-theft alarm* are immediately
disabled if you unlock only the driver door, without unlocking the other
doors.
In vehicles with Easy Connect*, you can programme the security central
locking system directly ⇒ page 92. 
Programming the central locking system
You can use Easy Connect* to select which doors are unlocked with
the central locking system. Using the radio or the Easy Connect*
system, you can select whether the vehicle automatically closes
with the “Auto Lock” programme at speeds of more than 15 km/h
(10 mph).
Programming the unlocking of the doors (vehicles with Easy
Connect)
– Select: control button Systems or Vehicle systems > Vehicle set-
tings > Central locking > Unlocking doors.
Programming the Auto Lock (vehicles with radio)
– Select: SETUP
button > control button
 Central locking > Locking
while driving. Programming the Auto Lock (vehicles with Easy Connect)
–
Select: control button Systems or Vehicle systems > Vehicle set-
tings > Locking while driving.
Unlocking the doors - You can programme the system to unlock all the doors
or only the driver door when you unlock the vehicle. In all the options, the
fuel tank flap is also unlocked.
With the setting, Driver, all the doors and the rear lid are unlocked if button 
on the remote control key is pressed twice.
With this setting, you can continue to unlock all the vehicle doors. To do so,
press button 
on the remote control key
twice. Or, in vehicles with a con-
ventional key, turn the key to open in the door lock twice within 2 seconds.
If the button 
is pressed, all the vehicle doors are locked. At the same
time, a confirmation signal is heard 1)
.
Auto Lock/Locking while driving - If you select on, all the vehicle doors are
locked at speeds above 15 km/h (10 mph). 
1)
This function is not available on all export versions.

93
Opening and closing
Central locking switch
Fig. 50 Driver door: cen-
tral locking switch
– To lock the vehicle, press the 
button ⇒ .
– To unlock the vehicle, press the 
button ⇒ Fig. 50.
Please note the following when using the central locking switch to lock your
vehicle:
● It is not possible to open the doors or the rear lid from the outside (for
safety reasons, e.g. when stopped at traffic lights).
● The LED in the central locking switch lights up when all the doors are
closed and locked.
● You can open the doors individually from the inside by pulling the inside
door handle.
● In the event of an accident in which the airbags inflate, doors locked
from the inside will be automatically unlocked to facilitate access and assis-
tance.
WARNING
● The central locking switch also operates when the ignition is switch-
ed off and automatically locks all the vehicle doors when the button 
is
pressed.
● The central locking switch does not operate if the vehicle is locked
from the outside and the anti-theft security system is switched on.
● Locked doors could delay assistance in an emergency, potentially
putting lives at risk. Do not leave anyone (especially children) in the vehi-
cle.
Note
The doors and the rear lid are locked automatically when the vehicle rea-
ches a speed of about 15 km/h (10 mph) (Auto Lock) ⇒  page 86. You can
unlock the vehicle again using button 
on the central locking switch.
Anti-theft alarm system
Description
The anti-theft alarm makes it more difficult to break into the vehicle or steal
it.
The anti-theft alarm is automatically turned on when the vehicle is locked
with the key.
When does the system trigger an alarm?
The anti-theft alarm siren will be triggered for about 30 seconds accompa-
nied by optical warning signals for about five minutes when the vehicle is
locked and the following unauthorised actions are taken: 
Safety FirstOperating instructionsPractical TipsTechnical specifications

94Opening and closing
● When the door is mechanically unlocked using the vehicle key without
turning the ignition within the following 15 seconds.
● A door is opened.
● The bonnet is opened.
● The rear lid is opened.
● When the ignition is switched on with a non-authorised key.
● When the vehicle battery is disconnected.
● Movement inside the vehicle (in vehicles with interior monitoring
⇒ page 95).
● When the vehicle is towed (in vehicles with anti-tow system
⇒ page 95).
● When the vehicle is raised (in vehicles with anti-tow system
⇒ page 95).
● When the vehicle is transported on a ferry or by rail (vehicles with an an-
ti-tow system or vehicle interior monitoring ⇒ page 95).
● When a trailer connected to the anti-theft alarm system is disconnected.
How to turn OFF the alarm
Unlock the vehicle with the unlocking button on the key or turn on the igni-
tion with a valid key.
Note
● The alarm will be triggered once more when anybody enters the same
zone of surveillance or any other zone. If, for example, after opening a door,
the rear lid is also opened.
● The anti-theft alarm 
is not activated when the vehicle is locked from
the inside using the central locking button. ●
If the driver door is unlocked mechanically with the key, only the driver
door is unlocked, the rest of the doors remain locked. Only when the igni-
tion has been turned on will the other doors be available - but not unlocked
- and the central lock button activated.
● If the vehicle battery is run down or flat then the anti-theft alarm will not
operate correctly. 
Vehicle interior monitoring and anti-tow system*
Monitoring or control function incorporated in the anti-theft
alarm* which detects unauthorized vehicle entry by means
of ultrasound.
Activation
– It is automatically switched on when the anti-theft alarm is acti-
vated.
Deactivation
– Open the vehicle with the key, either mechanically 1)
or by press-
ing the 
button on the remote control.
– Press the button 
on the remote control twice. The volumetric
sensor and tilt sensors will be deactivated. The alarm system re-
mains activated.
The vehicle interior monitoring and the anti-tow system are automatically
switched on again next time the vehicle is locked. 
1)
The time period from when the door is opened until the key is inserted in the contact
should not exceed 15 sec., otherwise the alarm will be triggered.

95
Opening and closing
The vehicle interior monitoring and anti-tow sensor (tilt sensor) are auto-
matically switched on when the anti-theft alarm is switched on. In order to
activate it, all the doors and the rear lid must be closed.
If you wish to switch off the vehicle interior monitoring and the anti-tow sys-
tem, it must be done each time that the vehicle is locked; if not, they will be
automatically switched on.
The vehicle interior monitoring and the anti-tow system should be switched
off if animals are left inside the locked vehicle (otherwise, their movements
will trigger the alarm) or when, for example, the vehicle is transported or
has to be towed with only one axle on the ground.
False alarms
The interior monitoring only operates correctly if the vehicle is completely
closed. Please observe legal requirements when doing so.
The following cases may cause a false alarm:
● opened windows (partially or fully)
● panoramic/tilting sunroof open (partially or completely).
● movement of objects inside the vehicle, such as loose papers, items
hanging from the rear vision mirror (air fresheners), etc.
Note
● If the vehicle is relocked and the alarm is activated without the volumet-
ric sensor function, relocking will activate the alarm with all its functions,
except the volumetric sensor. This function is reactivated when the alarm is
switched on again, unless it is deliberately switched off.
● If the alarm has been triggered by the volumetric sensor, this will be in-
dicated by a flashing of the warning lamp on the driver door when the vehi-
cle is opened. The flash is different to the flash indicating the alarm is acti-
vated. ●
The vibration of a mobile phone left inside the vehicle may cause the ve-
hicle interior monitoring alarm to trigger, as both sensors react to move-
ments and shakes inside the vehicle.
● If on activating the alarm, any door or the rear lid is open, only the alarm
will be activated. The vehicle interior monitoring and the anti-tow system
will only be activated once all the doors are closed (including the rear lid). 
Deactivating the vehicle interior monitoring and tow-away
protection 1)
Fig. 51 Vehicle interior
monitoring/tow-away
protection button
When the vehicle is locked, the alarm will be triggered if move-
ments are detected in the interior (e.g. by animals) or if the vehi-
cle's inclination is changed (e.g. during transport). You can prevent
the alarm from being triggered accidentally by switching off the ve-
hicle interior monitoring and/or tow-away protection.
– To switch off the vehicle interior monitoring and tow-away pro-
tection, switch off the ignition and press button ⇒ Fig. 51. The
button will light up. 
1)
Only available in certain markets.
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96Opening and closing
–When the vehicle is locked now, the vehicle interior monitoring
and the tow-away protection are switched off until the next time
the door is opened.
If the anti-theft security system (Safelock)* ⇒  page 86 is switched off, the
vehicle interior monitoring and the tow-away protection are automatically
switched off.
WARNING
Do not leave anyone (especially children) in the vehicle if it is locked from
the outside and the anti-theft security system* is enabled, as the doors
and windows cannot then be opened from the inside. Locked doors could
delay assistance in an emergency, potentially putting lives at risk.

Emergency locking and unlocking Introduction
The doors, rear lid and panoramic tilting sunroof can be locked manually
and partially opened, for example if the key or the central locking is dam-
aged.
Additional information and warnings:
● Vehicle key set ⇒ page 88
● Central locking and locking system ⇒ page 86
● Rear lid ⇒  page 98
WARNING
Opening and closing doors carelessly can cause serious injury.
● If the vehicle is locked from outside, the doors and windows cannot
be opened from the inside.
● Never leave children or disabled people alone in the car. They could
be trapped in the car in an emergency and will not be able to get them-
selves to safety.
● Depending on the time of the year, temperatures inside a locked and
closed vehicle can be extremely high or extremely low resulting in seri-
ous injuries and illness or even death, particularly for young children.
WARNING
Getting in the way of the doors and the rear lid is dangerous and can lead
to serious injury.
● Open and close the doors and the rear lid only when there is nobody
in the way.
CAUTION
When opening and closing in an emergency, carefully disassemble compo-
nents and then reassemble them carefully to avoid damage to the vehicle. 

97
Opening and closing
Unlocking or locking the driver door
If the central locking system should fail to operate, the driver
door can still be locked and unlocked by turning the key in
the lock.
Fig. 52 Driver door lever:
Hidden lock cylinder
As a general rule, when the driver door is locked all other doors are locked.
When the vehicle is unlocked manually, only the driver door opens. Please
observe the instructions relating to the anti-theft alarm system ⇒ page 86.
● Unfold the vehicle key shaft
⇒ page 88.
● Insert the key shaft into the opening in the cover on the driver door han-
dle from below ⇒ Fig. 52 (arrow) then remove the cover upwards.
● Insert the key shaft into the lock cylinder to unlock or lock the vehicle. Unlocking notes:
●
The anti-theft alarm will remain active when vehicles are unlocked. How-
ever, the alarm will not yet be triggered ⇒ page 86.
● After the driver door is opened, you have 15 seconds to switch on the
ignition. After 15 seconds, the alarm is triggered.
● Switch the ignition on. When the ignition is switched on, the electronic
immobiliser recognises a valid vehicle key and deactivates the anti-theft
alarm system.
Note
The anti-theft alarm is not activated when the vehicle is locked manually us-
ing the key shaft ⇒ page 86. 
Manual locking of passenger door in an emergency
If the central locking system should fail to work at any time,
the passenger door will have to be locked separately.
Fig. 53 Locking the door
manually 
Safety FirstOperating instructionsPractical TipsTechnical specifications

98Opening and closing
A mechanical locking device (only visible when the door is open) is
provided on the front passenger door.
–Pull the cap out of the opening.
– Insert the key in the inside slot and turn it to the right as far as
it will go (if the door is on the right side) or to the left (if the
door is on the left side).
Once the door has been closed it can no longer be opened from the outside.
Pull the interior door handle once to unlock and open the door. 
Rear lid (luggage compartment)
Rear lid
The rear lid opening system operates electrically. It is activa-
ted by using the handle on the rear lid.
Fig. 54 Rear lid: opening
from the outside Opening the rear lid
–
Pull on the release lever and lift the rear lid ⇒ Fig. 54. The rear
lid will automatically open.
Closing the rear lid
– Hold the rear lid by one of the two handles on the interior lining
and close it, pushing slightly.
To lock/unlock, press the button 
or the button
1 on the remote control
key.
A warning appears on the instrument panel display if the rear lid is open or
not properly closed.* An audible warning is also given if the rear lid is
opened while the vehicle is moving faster than 6 km/h (4 mph).*
WARNING
● Always close the rear lid properly. Risk of accident or injury.
● The rear lid must not be opened when the reverse or rear fog lights
are lit. This may damage the tail lights
● Do not close the rear lid by pushing it down with your hand on the
rear window. The glass could smash. Risk of injury!
● Ensure the rear lid is locked after closing it. If not, it may open unex-
pectedly while driving.
● Never allow children to play in or around the vehicle. A locked vehicle
can be subjected to extremely high and low temperatures, depending on
the time of year, thus causing serious injuries/illness. It could even have
fatal consequences. Close and lock both the rear lid and all the other
doors when you are not using the vehicle.
● Closing the rear lid without observing and ensuring it is clear could
cause serious injury to you and to third parties. Make sure that no one is
in the path of the rear lid. 

99
Opening and closing
WARNING (Continued)
● Never drive with the rear lid open or half-closed, exhaust gases may
penetrate into the interior of the vehicle. Danger of poisoning!
● If you only open the rear lid, do not leave the key inside. The vehicle
will not be opened if the key is left inside.

Automatic rear lid locking
Where the vehicle has been locked by pressing the  button on the remote
control with the rear lid open, the rear lid will lock automatically when
closed.
The automatic rear lid locking time extension function can be activated.
Where this function is activated and once the rear lid has been unlocked by
pressing the 
button on the remote control key
⇒ page 91, the rear lid
can be re-opened for a certain length of time.
Where required, the automatic rear lid locking time extension function can
be activated or deactivated at a SEAT Authorised Service, which will provide
all of the necessary information.
Before the vehicle locks automatically, there is a risk of intruders getting in-
to the vehicle. Therefore, we recommend you always lock the vehicle by
pressing the 
button on the remote control or by using the central locking
button. Manual release of the rear lid in an emergency
The rear lid can be unlocked manually from inside in the
event of an emergency.
Fig. 55 Luggage com-
partment: access to man-
ual release
– Insert the key in the opening in the lining of the rear lid 1
and
move the key in the direction of the arrow until the lock is re-
leased. 
Safety FirstOperating instructionsPractical TipsTechnical specifications