2011 Seat Ibiza ST sensor

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 an occupant who has as-
sumed an incorrect sitting position. As the driver, you are responsi-
ble for all vehicle occupants, 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 front occupants 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. 

64Cockpit
ItemSymbolMeaning of warning and indicator
lampsFurther infor-mation
1Engine fault (petrol engine)⇒ page 67
1Glow plug system for diesel engine
If lit: glow plug system active
If flashing: engine fault⇒ page 68
2Soot accumulation in the diesel en-
gine particulate filter⇒ page 68
3
Red:
Engine oil pressure
⇒ page 68Yellow:
If flashing: engine oil sensor faulty
If it remains lit: insufficient engine
oil
4Bulb defective⇒ page 69
5Level of liquid for washing windows
too low.⇒ page 69
6Rear fog light switched on⇒ page 69
7Seat belt warning lamp*⇒ page 20
8Anti-lock brake system (ABS) *⇒ page 69
9
If flashing: Electronic Stability Pro-
gramme (ESP) or the TCS is working
If it remains lit: ESP or TCS faulty⇒ page 70
⇒ page 70
10Brake fluid required or
serious fault in brake system⇒ page 71
11Handbrake on⇒ page 159
ItemSymbolMeaning of warning and indicator
lampsFurther infor-mation
12Cruise speed activated (Cruise con-
trol)⇒ page 71
13Tyre pressure*⇒ page 71
14Selector lever lock (automatic gear-
box)⇒ page 72
15Fuel level / reserve⇒ page 72
16Doors open⇒ page 72
17Tailgate open⇒ page 72
18Airbag or belt tensioner system fault
or airbag disabled⇒ page 31
19Main beam switched on⇒ page 73
20Start-Stop system switched off⇒ page 148
21Electro-hydraulic steering⇒ page 73
22Fault in the emission control system⇒ page 73
23Coolant level / coolant temperature⇒ page 73
24Alternator fault⇒ page 74
25If it stays lit: TCS disabled⇒ page 70
⇒ page 70 

68Cockpit
Glow plug system / Engine fault* 
The warning lamp lights up to show that the glow plugs are
preheating. It flashes if there is an engine fault.
Warning lamp  is lit
The warning lamp  lights up while the glow plugs are preheating. When
the warning lamp goes off, the engine should be started straight away.
Warning lamp  flashes
If a fault develops in the engine management system while you are driving,
the glow plug lamp will flash . Take the vehicle to an Authorised Service
Centre as soon as possible and have the engine checked. 
Soot accumulation in the diesel engine particulate filter*

If the warning 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, with the engine running at ap-
proximately 2000 rpm. In this way, the pollen build up in the filter is burned.
When cleaning is successful, the indicator turns off.
If the warning lamp  does not turn off, or the three lamps turn on (partic-
ulate 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 204.
If the symbol flashes although the oil level is correct, do not drive on. The
engine must not even run 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 204 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. 

71
Cockpit
Brake system* 
This warning lamp lights up if the brake fluid level is too low
or if there is a fault in the system.
This warning lamp  lights up if
● the brake fluid level is too low ⇒ page 211.
● there is a fault in the brake system.
This warning lamp can light up together with the ABS system warning lamp.
WARNING
● If the brake warning lamp does not go out, or if it lights up when driv-
ing, the brake fluid level ⇒ page 211, Brake fluid in the reservoir is too
low. Risk of accident. Stop the vehicle and do not drive on. Obtain techni-
cal assistance.
● If the brake warning lamp  lights up together with the ABS warning
lamp , the control function of the ABS could be out of action. This could
cause the rear wheels to lock quickly when you brake. This could cause
the rear to break away. Risk of skidding. Stop the vehicle and seek tech-
nical assistance.

Cruise speed (Cruise control)* 
The warning lamp comes on when the cruise control system
is switched on.
The warning lamp  lights up when the cruise control system is switched
on. For further information on the cruise control system, see ⇒ page 163.Tyre pressure* 
Fig. 40 Centre console:
tyre monitor system but-
ton
The tyre warning lamp 1)
compares wheel revolutions and with this informa-
tion, the diameter of each wheel using the ESP sensors. If the diameter of a
wheel changes, the tyre warning lamp  lights up. The wheel diameter
changes when:
● Tyre pressure is insufficient.
● The tyre structure is damaged.
● The vehicle is unbalanced because of a load.
● The wheels of one axle are under more pressure (for example, driving
with a trailer or on extreme slopes).
● The vehicle is fitted with snow chains.
● The temporary spare wheel is fitted.
● The wheel on one axle is changed. 
1)
Depending on the model version
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

80Unlocking and locking
Once this system is activated, opening doors from the outside and the in-
side is not possible. The tailgate can not be opened. The central locking
button does not work.
When the ignition is switched off, the instrument panel 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 87.
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 90. 

87
Unlocking and locking
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 connected on locking the vehi-
cle. For this, either rotate the key in the locking position or press button 
2 on the radio-frequency remote control*. The system is immediately acti-
vated 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 car 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 tailgate
● 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
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

88Unlocking and locking
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 remote con-
trol ⇒ page 85. 
Interior monitoring and anti-towing alarm*
Monitoring or control function incorporated in the anti-theft
alarm* which detects unauthorized vehicle entry by means
of ultrasound.
Activation
– It is connected automatically 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 interior monitoring and the anti-towing alarm are automatically switch-
ed on again next time the vehicle is locked.
The interior monitoring and anti-towing alarm (tilt sensor) are automatically
switched on when the anti-theft alarm is switched on. In order to activate it,
all the doors and the tailgate must be closed.
If you wish to disconnect the interior monitoring and the anti-towing sys-
tem, it must be done each time that the vehicle is locked; if not, they will
connect automatically.
The interior monitoring and the anti-towing system should be disconnected
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)
● panorama/tilting sunroof open (partially or completely).
● movement of objects inside the vehicle, such as loose papers, items
hanging from the rear view 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.

89
Unlocking and locking
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 indicator on the driver door. The flash is differ-
ent to the flash indicating the alarm is activated.
● The vibration of a mobile phone left inside the vehicle may cause the in-
terior monitoring alarm to trigger, as both sensors react to movements and
shakes inside the vehicle.
● If on activating the alarm, any door or the tailgate is open, only the
alarm will be activated. The interior monitoring and the anti-towing system
will only be activated once all the doors are closed (including the tailgate). 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications