sensor Seat Ibiza ST 2012 Owner's manual

28Seat belts
Incorrectly fastened seat belts
Incorrectly worn seat belts can cause severe or even mortal
injuries.
Seat belts can provide optimal protection only if the belt web is
properly worn. The seat belts must be fastened exactly in the order
described in this chapter. An incorrect sitting position impairs sub-
stantially the protection a seat belt offers and can lead to severe or
fatal injuries. The risk of severe or fatal injuries is especially in-
creased when a deploying airbag strikes a vehicle occupant who
has assumed an incorrect sitting position. As the driver, you are re-
sponsible for yourself and all passengers, especially children.
Therefore:
– Never allow anyone to wear the seat belt incorrectly while the
vehicle is moving ⇒ 
.
WARNING
● An incorrectly worn seat belt increases the risk of severe injuries.
● Before every trip, instruct your passengers to adjust their seat belts
properly and to wear them for the whole journey.
● Read and always observe information and warnings concerning the
use of seat belts ⇒ page 23.
Belt tensioners*
Function of the seat belt tensioner
During a frontal collision, the seat belts on the front seats
are retracted automatically.
The seat belts for the occupants in the front seats are equipped with belt
tensioners. Sensors will trigger the belt tensioners during severe head-on,
lateral and rear collisions only if the seat belt is being worn. This retracts
and tightens the seat belts, reducing the forward motion of the occupants.
The seat belt tensioner can be triggered only once.
The belt tensioners will not be triggered in the event of light frontal and side
collisions, if the vehicle overturns, or in situations where no large forces act
on the front, side or rear of the vehicle.
Note
● If the seat belt tensioners are triggered, a fine dust is produced. This is
normal and it is not an indication of fire in the vehicle.
● The relevant safety requirements must be observed when the vehicle or
components of the system are scrapped. Specialised workshops are famili-
ar with these regulations, which are also available to you. 
Service and disposal of belt tensioners
The belt tensioners are components of the seat belts that are installed in
the seats of your vehicle. If you work on the belt tensioners or remove and
install parts of the system when performing other repair work, the seat belt
may be damaged. The consequence may be that, in the event of an acci-
dent, the belt tensioners function incorrectly or not at all. 

66Cockpit
ItemSymbolMeaning of control and warning
lampsFurther infor-mation
1Engine fault (petrol engine)⇒ page 69
1
Glow plug system for diesel engine
If lit: glow plug system active
If flashing: engine fault⇒ page 70
2Soot accumulation in the diesel en-
gine particulate filter⇒ page 70
3
Red:
Engine oil pressure
⇒ page 70Yellow:
If flashing: engine oil sensor faulty
If it remains lit: insufficient engine
oil
4Bulb defective⇒ page 71
5Level of liquid for washing windows
too low.⇒ page 71
6Rear fog light switched on⇒ page 71
7Seat belt warning lamp*⇒ page 20
8Anti-lock brake system (ABS) *⇒ page 71
9
If flashing: the Electronic Stability
Control (ESC) is working or the ASR
is working
If it remains lit: ESC or ASR faulty⇒ page 72
⇒ page 72
10Brake fluid required or
serious fault in brake system⇒ page 73
11Handbrake on⇒ page 161
ItemSymbolMeaning of control and warning
lampsFurther infor-mation
12Cruise speed activated (Cruise con-
trol)⇒ page 73
13Tyre pressure*⇒ page 73
14Selector lever lock (automatic gear-
box)⇒ page 74
15Fuel level / reserve⇒ page 74
16Doors open⇒ page 74
17Rear lid open⇒ page 74
18Airbag or belt tensioner system fault
or airbag disabled⇒ page 31
19Main beam switched on⇒ page 75
20Start-Stop system switched off⇒ page 150
21Electro-hydraulic steering⇒ page 75
22Fault in the emission control system⇒ page 75
23Coolant level / coolant temperature⇒ page 75
24Alternator fault⇒ page 76
25If it stays lit: ASR switched off⇒ page 72
⇒ page 72 

70Cockpit
Glow plug system/Engine fault* 
The warning lamp lights up to show that the glow plugs are
preheating the diesel engine. It flashes if there is an engine
fault.
Control lamp  is lit
The control lamp  lights up while the glow plug system is preheating.
When the warning lamp goes off, the engine should be started straight
away.
Control lamp  flashes
If a fault develops in the engine management system while you are driving,
the glow plug system lamp will flash . Take the vehicle to a specialised
workshop as soon as possible and have the engine checked. 
Soot accumulation in the diesel engine particulate filter*

If the lamp  lights up you should help the filter clean itself by driving in
the appropriate manner.
To do this, drive about 15 minutes in fourth or fifth gear (automatic gear-
box: S gear range) at a speed of 60 km/h (40 mph), with the engine running
at approximately 2000 rpm. In this way, the pollen build up in the filter is
burned. When cleaning is successful, the lamp turns off.
If the lamp  does not turn off, or the three lamps turn on (particulate filter
 , emission control system fault  and glow plugs ), take the vehicle to
a specialised workshop to repair the fault.
WARNING
● Always drive according to the road weather conditions, the terrain
and traffic. Driving recommendations should never lead to illegal ma-
noeuvres in surrounding traffic.
● The diesel engine particulate filter may reach extremely high temper-
atures; it should not enter into contact with flammable materials under-
neath the vehicle. Otherwise there is a risk of fire.

Engine oil pressure 
If this warning lamp is red it indicates that the engine oil
pressure is too low.
If this warning symbol starts to flash, and is accompanied by three audible
warnings, switch off the engine and check the oil level. If necessary, add
more oil ⇒ page 206.
If the symbol flashes although the oil level is correct, do not drive on. Do
not even run the engine at idle speed! Obtain technical assistance.
Checking the oil level 
If the warning lamp is yellow  the engine oil level should be checked as
soon as possible. Top up the oil ⇒ page 206 at the next opportunity.
Oil level sensor faulty* 
If the  yellow warning lamp flashes, take the vehicle to a specialised
workshop to have the oil level sensor checked. Until then it is advisable to
check the oil level every time you refuel. 

83
Opening and closing
Once this system is activated, opening doors from the outside and the in-
side is not possible. The rear lid can not be opened. The central lock button
does not work.
When the ignition is switched off, the instrument panel display indicates
that the Safe system is on.
Deactivation
Rotate the key inserted in the lock cylinder twice towards the locking direc-
tion.
To activate the system using the remote control, press the lock button on
the remote twice 
in less than five seconds.
On deactivating the “Safe” system, the alarm volumetric sensor is also de-
activated.
With the “Safe” switched off, doors can be opened from the interior but not
from the exterior.
See “Selective unlocking system*”
“Safe” status
On the driver door, there is a visible warning lamp which shows the “Safe”
system status.
We will know that “Safe” system is activated by the flashing warning lamp.
The indicator will flash on all vehicles, fitted and nor fitted with an alarm,
until they unlock.
Remember:
Safe activated with or without an alarm: Warning lamp flashes continuous-
ly.
Safe deactivated without an alarm: The indicator remains off.
Safe deactivated with an alarm: The indicator remains off.
WARNING
No one should remain inside the vehicle if the “Safe” mechanism is acti-
vated because opening the doors will not be possible in case of emergen-
cy neither from the inside nor the outside. Danger of death. Passengers
could become trapped inside in case of emergency.

Selective unlocking system*
This system allows to unlock either just the driver door or all
the vehicle.
Driver door unlock button
Unlock once. Use either the key or the remote control.
Once the key is inserted in the lock cylinder, rotate once in the unlock direc-
tion. The driver door will remain without “Safe” and unlocked. See Anti-theft
Alarm chapter for vehicles fitted with an alarm ⇒ page 90.
Using the remote control, press the unlock button on the remote 
once.
The Safe system for all the vehicle is deactivated, only the driver door is un-
locked and both the alarm and the warning lamp are also turned off.
Unlocking all doors and the luggage compartment
The unlock button on the remote control must be pressed twice 
so that
all doors and the luggage compartment can be opened.
Press twice within 5 seconds to deactivate the Safe system for all vehicle, to
unlock all doors and to use the luggage compartment. The warning lamp
and the alarm (only vehicles fitted with one) are turned off.
Unlocking the luggage compartment
See ⇒ page 93. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

90Opening and closing
Anti-theft alarm system*
Description of anti-theft alarm system*
The anti-theft alarm triggers if unauthorised movements are
detected around the vehicle.
The anti-theft alarm makes it more difficult to break into the vehicle or steal
it. The system will initiate acoustic and optical warning signals when your
vehicle is tried to be forced.
The anti-theft alarm system is automatically switched on when locking the
vehicle. For this, either rotate the key in the locking position or press button 
2 on the radio frequency remote control*. The system is immediately ac-
tivated and the turn signal light located on the driver door will flash along
with the turn signals, indicating that the alarm and the locking security sys-
tem (double lock) have been turned on.
If any of the doors or the bonnet are open, they will not be included in the
protection zones of the vehicle when the alarm is connected. If the door or
the bonnet are subsequently closed, they will be automatically included in
the protection areas of the vehicle and the turn signals will flash according-
ly when the doors close.
● The turn signal light will flash twice on opening and deactivating the
alarm.
● The turn signal light will flash once on closing and activating the alarm.
When does the system trigger an alarm?
The system triggers an alarm if the following unauthorised actions are car-
ried out when the vehicle is locked: ●
Opening of vehicle with mechanical key without switching ignition on
within the next 15 seconds
● Opening a door
● Opening the bonnet
● Opening the rear lid
● Ignition switched on with a non-validated key.
● Movements in the driving compartment (vehicles with a volume sensor)
● Towing of the vehicle 1)
● Tilt angle (tow-away protection) 1)
● Undue manipulation of the alarm
● Battery handling
The acoustic signals sound and the turn signals flash for approx. 30 sec-
onds. This may be repeated up to 10 times depending on the country.
Opening all the doors in manual mode
In vehicles without alarm, when opening the driver door manually all the
doors are opened.
How to switch the alarm off
To deactivate the anti-theft alarm, turn the key in the direction, to open,
open the door and switch the ignition on, or press the unlock button 
on
the remote control.
In vehicles equipped with an anti-theft alarm system, you have 15 seconds
to insert the key in the ignition lock and activate the ignition if the vehicle is
opened using the driver door key.
Otherwise, the alarm will trigger for 30 sec. and the ignition will be blocked. 
1)
With vehicles fitted with a tow-away protection

91
Opening and closing
Note
● After 28 days, the indicator light will be switched off to prevent the bat-
tery from exhausting if the vehicle has been left parked for a long period of
time. The alarm system remains activated.
● The alarm will trigger again if attempts are made to open another protec-
tion zone.
● The alarm system can be activated or deactivated using the radio fre-
quency remote control ⇒ page 88. 
Vehicle interior monitoring and tow-away protection
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 tow-away protection system are au-
tomatically switched on again next time the vehicle is locked.
The vehicle interior monitoring and tow-away protection sensor (tilt sensor)
are automatically 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 tow-away
protection system, 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 tow-away protection 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 trans-
ported 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. 
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.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

92Opening and closing
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 tow-away protec-
tion system will only be activated once all the doors are closed (including
the rear lid). 

101
Lights and visibility
● The rear fog light is so bright that it can dazzle drivers behind you. You
should use the rear fog light only when visibility is very poor.
● The use of the lighting described here is subject to the relevant statutory
requirements. 
Automatic lighting*
Fig. 55 Automatic light-
ing
Activation
– Rotate the switch to the position “Auto”, this indication will
light up.
Deactivation
– Turn the light switch to 0.
Automatic lighting
If automatic headlight control is switched on, dipped beam headlights are
automatically switched on by a photosensor if you drive into a tunnel, for
example.
WARNING
● Even if the automatic headlight control is switched on, the dipped
beam headlights will not be switched on with fog. Therefore, the dipped
beam must be switched on manually.
Note
● For those vehicles with the automatic headlight system, when the key is
removed from the ignition, the audible warning will only sound if the light
knob is in position  or .
● If the daylight driving automatic light function is switched on, the fog
lights or rear fog light cannot be switched on in addition.
● The use of the lighting described here is subject to the relevant statutory
requirements.
● Do not put stickers on the windscreen in front of the sensor. This may
cause disruptions or faults in the automatic lighting system.
● The rain sensor switches on the dipped beam headlights when the wind-
screen wipers have been operating continuously for a few seconds and it
switches the lights off when the continuous or interval wipe is switched off
for some minutes. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

104Lights and visibility
Coming/leaving Home function*
The Coming Home function is controlled manually. The Leav-
ing Home function is controlled with a photosensor.
If the Coming Home or Leaving Home function is connected, the front side
and dipped lights, the tail lights and the number plate light will light up to
provide assistance.
Coming home function
The Coming Home function is activated by switching off the ignition and
briefly flashing the lights. When the driver door is opened, the Coming
Home lighting comes on. If the driver door is already open when the lights
are flashed briefly, the Coming Home lighting comes on immediately.
When the last door of the vehicle or the rear lid is closed, the Coming Home
function starts and the switching off the headlights is delayed.
The Coming Home lighting switches off in the following cases:
● On completion of the time period established for the delay in switching
off the lights after all the vehicle doors and the rear lid have been closed.
● If, 30 seconds after being connected, any doors or the rear lid remain
open.
● If the light switch is turned to position .
● If the ignition is switched on.
Leaving home function
The Leaving Home function is activated when the vehicle is unlocked if:
● the light control is in position  and
● the photosensor detects “darkness”.
The Leaving Home lighting switches off in the following cases:
● If the time period for the delay in switching off the headlights has ended
● If the vehicle is locked again. ●
If the light switch is turned to position .
● If the ignition is switched on.
Note
● To activate the coming/leaving home function, the rotary light switch
must be in position  and the light sensor must detect darkness.
● If the ignition key is removed while the lights are on, and the lights are
flashed briefly and the driver door opened, no audible warning is heard, as
when the Coming Home function is on, the lights are automatically switched
off after a period of time (except when the light switch is in position  or
. 
Heated rear window 
Fig. 58 Centre console:
heated rear window
switch
The heated rear window only works when the engine is running. When it is
switched on, a lamp lights up on the switch.
After approx. 8 minutes, the heating device of the rear window switches off
automatically. 

110Lights and visibility
WARNING
● Worn and dirty wiper blades reduce visibility and safety levels while
driving.
● In cold conditions, you should not use the wash/wipe system unless
you have warmed the windscreen with the heating and ventilation sys-
tem. The windscreen washer fluid could otherwise freeze on the wind-
screen and obscure your view of the road.
● Always note the corresponding warnings on ⇒ page 210.
CAUTION
In icy conditions, always check that the wiper blades are not frozen to the
glass before using the wipers for the first time. If you switch on the wind-
screen wipers when the wiper blades are frozen to the windscreen, you
could damage both the wiper blades and the wiper motor.
Note
● The windscreen wipers will only work when the ignition is switched on.
● The heat output of the heated jets* is controlled automatically when the
ignition is switched on, depending upon the outside temperature.
● In certain versions of vehicles with alarms, the windscreen wiper will on-
ly work in interval/rain sensor mode when the ignition is on and the bonnet
closed.
● When the interval wipe function is on, the intervals are directly propor-
tional to the speed. This way, the higher the vehicle speed the shorter the
intervals.
● If you stop the vehicle with the windscreen wiper in position 1 or 2, it
will automatically change to a lower speed. The set speed will be resumed
when the vehicle pulls away.
● The windscreen will be wiped again after approximately five seconds
once the “automatic wipe/wash system” has been operated, provided the
vehicle is in transit (drip function). If you activate the wipers less than three seconds after the drip function, a new wash sequence will begin without the
last wipe. For the “drip” function to work again, you have to turn the ignition
off and then on again.

Rain sensor*
The rain sensor controls the frequency of the windscreen
wiper intervals, depending on the amount of rain.
Fig. 65 Windscreen wip-
er lever
Switching on the rain sensor
– Move the windscreen wiper lever into position 1
⇒ Fig. 65.
– Move the control A
to the left or right to set the sensitivity of
the rain sensor. Control to the right: highly sensitive. Control to
the left: less sensitive.
The rain sensor is part of the interval wipe function. You will have to switch
the rain sensor back on if you switch off the ignition. This is done by switch-
ing the interval wipe function off and back on. 