2012 Seat Leon 5D ECU

53
Child safety
WARNING
● When travelling, children must be secured in the vehicle with a re-
straint system suitable for age, weight and size.
● Never install a child seat facing backwards on the front passenger
seat unless the front passenger airbag has been disabled. This could
cause fatal injuries to the child! However, if, in exceptional cases, it is
necessary to transport a child in the front passenger seat, the front pas-
senger airbag ⇒ page 44 must always be disabled and the seat adjusted
to its backmost highest position, where possible.
● Read and always observe information and warnings concerning the
use of child seats ⇒ page 47.

Safety FirstOperating instructionsPractical TipsTechnical specifications

54Child safety
Child seats fastened with the “ISOFIX” and Top Tether* system
Child seats with the “ISOFIX” and Toptether* system can be secured quickly, easily and safely on the rear outer seats.
Two “ISOFIX” retaining rings are fitted on each rear seat. In some vehicles,
the rings are secured to the seat frame and, in others, they are secured to
the rear floor. The access to the ISOFIX rings is between the rear seat back-
rest and the seat cushioning. The Top Tether* anchors are located at the
rear of the backrests of the rear seats (behind the seat backrest or in the
luggage compartment). To understand the compatibility of the "ISOFIX" systems in the vehicle, con-
sult the table below.
●
The allowed body weight for the child seat or information regarding size
A to F is indicated on the label on the child seat with certification universal
or semi-universal.
Mass groupSize classElectrical equipmentMounting directionVehicle Isofix positionsRear side seats
Baby carrierFISO/L1Backward-facingXGISO/L2Backward-facingXGroup 0 to 10 kgEISO/R1Backward-facingIU
Group 0+ to 13 kgEISO/R1Backward-facingIUDISO/R2Backward-facingIUCISO/R3Backward-facingIU
Group I 9 to 18 kg
DISO/R2Backward-facingIUCISO/R3Backward-facingIUBISO/F2Forward-facingIUB1ISO/F2XForward-facingIUAISO/F3Forward-facingIUGroup II 15 to 25 kg------Forward-facing---Group III 22 to 36 kg------Forward-facing---
Suitable for ISOFIX universal child restraint systems approved for use in
this mass group
ISOFIX position not suitable for ISOFIX child restraint systems for this
mass group or size class 
IU:
X:

55
Child safety
WARNING
● The securing rings are designed only for use with ISOFIX and Top
Tether* child seats.
● Never secure child seats that do not have the ISOFIX and Top Tether*
system, retaining belts or other objects to the securing rings – this could
result in potentially fatal injuries to the child!
● Ensure that the child seat is secured correctly using the “ISOFIX” and
Top Tether* securing rings.

ISOFIX child seat mounting system
Fig. 32 ISOFIX securing
rings
When removing or fitting the child seat, please be sure to follow
the manufacturer's instructions.
– Remove the protective caps of the “ISOFIX” rings by placing a
finger in the hole and pulling up ⇒ 
Fig. 32. –
Press the child seat onto the ISOFIX retaining rings until the
child seat can be heard to engage securely. If the child seat is
equipped with Toptether* anchor points, secure it to the corre-
spondent ring. Observe the manufacturer's instructions.
– Do a test by pulling both sides of the car seat to ensure that it is
properly anchored.
Child seats with the ISOFIX and Top Tether* attachment system are available
from Technical Services. 
Top Tether retainer straps*
Some child restraint seats have a third Top Tether anchoring
point, apart from both “ISOFIX” anchoring points, which al-
low better child retention.
Fig. 33 Position of the
Top Tether rings on the
back of the rear seat 
Safety FirstOperating instructionsPractical TipsTechnical specifications

56Child safety
Child seats with the Top Tether system come with a strap for securing the
seat to the vehicle anchor point, located at the back of the rear seat back-
rest.
The objective of the retainer strap is to reduce forward movements of the
child seat in a crash, helping reduce the risk of injuries to the head from hit-
ting the inside of the vehicle.
Using the Top Tether in rear-facing mounted seats
Currently, there are very few rear-facing child safety seats that have Top
Tether. Please carefully read and follow the seat manufacturer instructions
to learn the proper way to install the Top Tether strap. 
Fitting the Top Tether child restraint to the anchoring point
Fig. 34 Retainer strap:
correct adjustment and
fitting
Securing the Top Tether child restraint to the anchor point situated
on the rear of the backrest
– Pull out the fastening belt of the child restraint seat according
to the manufacturer's instructions. –
Guide the Top Tether fastening belt under the rear seat head re-
straint ⇒ Fig. 34 (lift the head restraint where necessary).
– Slide the belt so that the Top Tether belt of the child restraint
seat is correctly secured to the anchor on the back of the rear
seat.
– Firmly tighten the Top Tether belt following the child restraint
seat manufacturer's instructions.
Releasing the retaining strap
– Release the retainer strap in line with the instructions given by
the child safety seat manufacturer.
– Push the lock and release it from the anchoring support.
WARNING
An undue installation of the safety seat will increase the risk of injury in
the event of a crash.
● Never tie the retainer strap to a hook in the luggage compartment.
● Never secure or tie luggage or other items to the lower anchorages
(ISOFIX) or the upper ones (Top Tether).


86Opening and closing
Opening and closing
Central locking system
Description
The vehicle can be locked and unlocked via the central locking system.
There are several methods, depending on the vehicle equipment:
● key with remote control ⇒ page 91,
● lock on driver door (emergency opening ⇒ page 97) or
● interior central locking switch ⇒ page 93.
Unlocking one side of the vehicle only
When you lock the vehicle with the key, the doors and the rear lid are
locked. When you open the door, you can either unlock only the driver door,
or all the vehicle doors. To select the required option, use Easy Connect*
⇒ page 92.
Central locking (Auto Lock)
The Auto Lock function locks the doors and the rear lid when the vehicle ex-
ceeds a speed of about 15 km/h (10 mph).
The vehicle is unlocked again when the ignition key is removed. Alternative-
ly, the vehicle can also be unlocked via the central locking switch or by pull-
ing one of the inside door handles. The Auto Lock function can be switched
on and off on the sound system or on the Easy Connect* system
⇒ page 92.
In the event of an accident in which the airbags inflate, the doors will be au-
tomatically unlocked to facilitate access and assistance. Anti-theft security system (Safelock)
1)
The following message is displayed on the instrument panel to remind the
driver that when the vehicle is closed from the outside, the anti-theft securi-
ty system is switched on.  Do not forget the Safelock. Please see Instruction
Manual. The vehicle cannot be opened from inside. This makes it more diffi-
cult for unauthorised persons to break into the vehicle ⇒ .
The anti-theft security system can be switched off each time the vehicle is
locked:
● Turn the key a second time to the lock position, in the door lock, for the
next two seconds . If necessary, remove the protective cover on the driver
door handle ⇒ page 97. or
● Press 
on the remote control key for a second time
for the following 2
seconds.
The flashing frequency of the diode in the door sill immediately confirms
the process. Initially, the diode flashes in a fast sequence for a brief period,
then it stops for approximately 30 seconds and, lastly continues flashing
slowly.
Anti-theft alarm system*
If the anti-theft alarm system senses interference with the vehicle it triggers
an audible and visible alarm.
The anti-theft alarm system is automatically switched on when locking the
vehicle. It switches off when the vehicle is unlocked from a distance.
When the driver door is unlocked with the key, you should switch on the ig-
nition within 15 seconds. Otherwise the alarm will be triggered. On some
export versions, the alarm is triggered immediately when you open a door. 
1)
The availability of this function depends on the vehicle equipment.

87
Opening and closing
To deactivate the alarm, press the button 
on the remote control key, or
switch on the ignition. After a certain time, the alarm will automatically
switch off.
Switch off the vehicle interior monitoring and tow-away protection if you
wish to prevent the alarm from being triggered accidentally ⇒ page 95.
Turn signals
The turn signals will flash twice when the vehicle is unlocked and once
when the vehicle is locked.
If the signals do not flash, this indicates that one of the doors, the rear lid or
the bonnet is not closed correctly.
Accidental lock-out
The central locking system prevents you from being locked out of the vehi-
cle in the following situations:
● If the driver door is open, the vehicle cannot be locked with the central
locking switch ⇒ page 93.
Lock the vehicle with the remote control key, when all the doors and the rear
lid have been closed. This prevents the accidental locking of the vehicle.
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
● Never leave any valuable items in the vehicle unattended. Even a locked
vehicle is not a safe.
● If the diode on the driver door sill lights up for about 30 seconds when
the vehicle is locked, the central locking system or anti-theft alarm* is not
working properly. You should have the fault repaired at a SEAT Official Serv-
ice or specialised workshop.
● The vehicle interior monitoring of the anti-theft alarm* system will only
function as intended if the windows and the sunroof* are closed. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

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.