ECU Seat Leon 5D 2012 Owner's Guide

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.

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

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. 

131
Seats and storage
WARNING
● Please make sure that any items of clothing hanging from the coat
hooks do not obstruct your view to the rear.
● The coat hooks should only be used for lightweight clothing. Do not
leave any heavy or sharp objects in the pockets.
● Do not use clothes hangers to hang up the clothing, as this could in-
terfere with the function of the head-protection airbags.

Roof carrier
Note the following points if you intend to carry loads on the roof:
● In your car only certain roof carriers should be used. Roof carriers are the
basis of a complete roof carrier system. To transport luggage and sports
equipment, additional structures/transport systems are needed. We recom-
mend roof carriers and structures from the SEAT accessories programme.
● When mounting the roof carrier, be sure to mount only on the points al-
ready provided on the roof. The front and rear attachment points are only
visible when the doors are open.
● The maximum permissible roof load for your vehicle is 75 kg. The load
limit applies to the combined weight of the roof carrier, the structures, and
load itself. However, check the load permitted by the specific loading sys-
tem being used. Permissible axle weight and permissible total weight for
your vehicle ⇒ page 267.
WARNING
● Take note of the mounting instructions for the roof carrier system. If
the carrier system and the roof load are not properly secured, items of
luggage could fall from the vehicle and cause an accident.
● When you use a roof carrier system the style of driving changes due
to a shift of emphasis and the larger surface area exposed to wind drag,
which could cause an accident. Therefore, it is essential to adjust your
speed and driving style accordingly, to avoid accidents.
CAUTION
Check that when the rear lid is open, it does not touch loads carried on the
roof. When a roof carrier is fitted, DO NOT open the panoramic roof*.
For the sake of the environment
Greater aerodynamic drag increases fuel consumption. For this reason you
should always take off the roof carrier when it is not in use. 
Luggage compartment
General notes
WARNING
The Safe driving chapter contains important information, tips, sugges-
tions and warnings that you should read and observe for your own safety
and the safety of your passengers ⇒ page 7.

Safety FirstOperating instructionsPractical TipsTechnical specifications

133
Seats and storage
– Fold the backrest forwards.
Returning the backrest to its upright position
– Move the backrest until it engages properly ⇒ 
. The red mark-
ing on the tab B should no longer be visible when the backrest
is properly secured.
WARNING
● Make sure that the rear backrest is securely locked in position so that
the seat belt can provide proper protection on the centre rear seat.
● The rear backrest must always be securely latched so that objects
stored in the luggage compartment will not fly forward through the inte-
rior during sudden braking.
CAUTION
● With the backrest inclined there is a danger of damaging the rear head
restraints when adjusting the front seats backwards.
● When returning the backrest to an upright position, make sure that the
side seat belts are not caught up and damaged in the catches for the back-
rest. Fastening rings*
Fig. 80 Location of fas-
tening rings in luggage
compartment
– Secure the load using the fastening rings -arrows-.
– Please refer to the safety notes ⇒ page 17. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

148Driving
–Apply the handbrake.
– Select first gear.
– Switch the engine off and remove the key from the ignition. Turn
the steering wheel slightly to engage the steering lock.
– Always take you keys with you when you leave the vehicle ⇒ 
.
Additional notes on parking the vehicle on gradients:
Turn the steering wheel so that the vehicle rolls against the kerb if it started
to roll.
● If the vehicle is parked facing downhill, turn the front wheels so that
they point towards the kerb .
● If the vehicle is parked facing uphill, turn the front wheels so that they
point away from the kerb .
● Secure the vehicle as normal by applying the handbrake firmly and se-
lecting first gear.
WARNING
● Take measures to reduce the risk of injury when you leave your vehi-
cle unattended.
● Never park where the hot exhaust system could ignite inflammable
materials, such as dry grass, low bushes, spilt fuel etc.
● Never allow vehicle occupants to remain in the vehicle when it is
locked. They would be unable to open the vehicle from the inside, and
could become trapped in the vehicle in an emergency. In the event of an
emergency, locked doors will delay assistance to vehicle occupants.
● Never leave children alone in the vehicle. They could set the vehicle
in motion, for example, by releasing the handbrake or the gearbox lever.
● Depending on weather conditions, it may become extremely hot or
cold inside the vehicle. This can be fatal.
 Hill hold assist*
The Hill hold assist facilitates moving off when driving up-
hill.
Important: the driver door must be closed, the seat belt fastened and the
engine running.
The system is activated when you press and hold the brake pedal for a few
seconds.
To prevent the vehicle from rolling backwards when moving off, the brake
force will remain for a moment after releasing the brake pedal. This short
space of time is enough to start the vehicle with ease.
WARNING
● The smart technology included in the Hill hold assist cannot defy the
laws of physics. Do not let the extra convenience afforded by the Hill hold
assist tempt you into taking any risks when driving.
● The Hill hold assist cannot maintain the vehicle stationary on a slope
in all situations (e.g. on slippery or icy ground).
● If you do not start the vehicle immediately after taking your foot off
the brake pedal, the vehicle may start to roll back under certain circum-
stances. Depress the brake pedal or use the handbrake immediately.
● If the engine stalls, depress the brake pedal or use the handbrake im-
mediately.
● If you are moving off on a slope in stop-and-go traffic, press and hold
the brake pedal for a few seconds before driving off. This will prevent the
vehicle from rolling back unintentionally.
Note
The SEAT Official Service or a specialised workshop can tell you if your vehi-
cle is equipped with the Hill hold assist. 

151
Driving
Note
● You can control whether the engine should switch off or not by reducing
or increasing the brake force applied. While the vehicle remains stopped,
the engine will not stop if the brake pedal is slightly pressed, in traffic jams
with frequent stopping and starting for example. As soon as strong pressure
is applied to the brake pedal, the engine will stop.
● In vehicles with manual gearbox, during the stopping phases the brake
pedal must remain depressed to prevent the vehicle from moving.
● If the engine stalls in vehicles with manual gearbox, it can be directly
started up again by immediately pressing the clutch pedal. 
General notes
The system can interrupt the Start-Stop mode frequently for
different reasons.
The engine does not switch off
Before the stopping phase, the system verifies whether certain conditions
are met. The engine does not switch off, in the following situations for ex-
ample:
● The engine has not yet reached the minimum required temperature for
the Start-Stop mode.
● The interior temperature selected for the air conditioner has not yet
been reached.
● The interior temperature is very high/low.
● Defrost function button activated ⇒ page 135.
● The parking aid* is switched on.
● The battery is very low.
● The steering wheel is overly turned or is being turned.
● If there is a danger of misting. ●
After engaging reverse gear.
● In case of a very steep gradient.
The indication  is shown on the instrument panel display, and in addition,
the driver information system* shows, .
The engine starts by itself
During a stopping phase the normal Start-Stop mode can be interrupted in
the following situations: The engine restarts by itself without involvement
from the driver.
● The interior temperature differs from the value selected on the air condi-
tioner.
● Defrost function button activated ⇒ page 135.
● The brake has been pressed several times consecutively.
● The battery is too low.
● High power consumption.
Note
In vehicles with an automatic gearbox, if the selector lever is placed in posi-
tion D, N or S after engaging reverse gear, the vehicle must be driven at a
speed faster than 10 km/h (5 mph) for the system to return to conditions in
which the engine can be stopped. 
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