2013 Seat Leon SC warning light

191
Driver assistance systems
Warning and control lamps
Lights upPossible cause ⇒ Solution

A speed reduction by the ACC to
maintain distance with the ve-
hicle ahead is not enough.Brake! Use the foot brake!
Driver intervention necessary:
 The ACC is not currently availa-
blea)
.
With the vehicle stationary,
switch the engine off and back
on again. Check the radar sen-
sor visually (in case it is dirty,
has ice or has been knocked).
If it is still unavailable, refer to
a specialised workshop to
have the system inspected.

The ACC is active. No vehicle is
detected ahead. The set speed
remains constant.–

If the symbol is white: the ACC
is active. A vehicle in front has
been detected. The ACC adjusts
the speed and the distance
from the vehicle ahead.
–If the symbol is grey: the ACC is
not active. The system is
switched on, but it is not con-
trolling.
The ACC is active.–
a) The symbol is in colour on the instrument panel with colour display.
Some warning and control lamps will light up briefly when the ignition is
switched on to check certain functions. They will switch off after a few sec-
onds.
WARNING
Failure to heed the warning lamps when they light up and the corre-
sponding messages may result in damage to the vehicle and serious in-
jury.
● Never ignore the warning lamps or messages.
CAUTION
Failure to heed the control lamps when they light up and the corresponding
messages may result in damage to the vehicle.
Note
When the ACC is connected, the instrument panel display messages may be
hidden by messages pertaining to other functions, such as an incoming
call. 
Radar sensor
Fig. 131 On the front
bumper: radar sensor. 
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194Driver assistance systems
Programming speed and switching on control
● To store the current speed press the button SET
⇒ Fig. 133.
● Automatic gearbox: to switch on stationary vehicle control, step on the
brake pedal.
Switching off the adaptive cruise control
● Move the lever to position 0
until it engages. The text
ACC: off will be
displayed.
Altering speed
● To increase or decrease speed, gradually briefly press the lever up/down
⇒ Fig. 133.
Any change in the stored speed is shown on the bottom left of the instru-
ment panel display.
Adjusting the distance level
The distance according to the speed of the vehicle in front can be adjusted
to 5 levels on the Easy Connect system ⇒ page 80.
When the road is wet a greater distance from the vehicle in front should be
selected than when the road is dry.
The following distances can be preselected:
● Very short
● Short
● Media
● Long
● Very long
The Easy Connect system can be used to adjust the level of distance appli-
cable when the ACC is switched on by means of the button 
and the func-
tion buttons  and Driver Assistance ⇒ page 80. Setting the driving programme
In vehicles with driving mode selection (SEAT Drive Mode), the profile selec-
ted may influence acceleration behaviour
⇒ page 211.
The following driving programmes can be selected:
● Normal
● Sport
● Eco
In vehicles without SEAT Drive Mode, acceleration behaviour can be influ-
enced by selecting a driving programme on the Easy Connect system using
button 
and the function buttons  and Driver Assistance ⇒ page 80.
The following conditions may cause the ACC not to react:
● If the accelerator is pressed down.
● If there is no gear selected
● If the ESC is controlling.
● If the driver unbuckles his/her seat belt.
● If several brake lights on the vehicle or trailer have electrical faults.
● If the vehicle is reversing.
● If you are driving at a speed above approx. 160 km/h (100 mph).
WARNING
There is danger of a rear-end collision if the minimum distance from the
vehicle ahead is exceeded and the speed difference between both vehi-
cles is so great that speed reduction by the ACC is insufficient. In this
case, brake immediately with the brake pedal.
● The ACC might not detect all situations correctly. 

203
Driver assistance systems
WARNING (Continued)
● In complex driving conditions, the Front Assist may unnecessarily
warn and act unintentionally on the brakes, such as, for example, in the
case of traffic islands.
● If the operation of the Front Assist is impaired, for example, because
of dirt or because the radar sensor has lost its setting, the system may
issue unnecessary warnings and act inappropriately on the brakes.
● The ACC does not react during driving to people or animals or vehi-
cles changing lane or approaching in the opposite direction in the same
lane.
● The driver must always be ready to take control of the vehicle again.
Note
● When the Front Assist causes a braking, the brake pedal is “harder”.
● Automatic interventions in the Front Assist braking may be interrupted
by pressing the clutch pedal, accelerator or moving the steering wheel.
● If the Front Assist does not work as described in this chapter (e.g. if it
intervenes several times unnecessarily), switch it off. Have the system
checked by a specialised workshop. SEAT recommends visiting a SEAT deal-
ership. Warning lamps and messages on the display
Fig. 138 On the instrument panel display: Warning messages
Lights upPossible cause ⇒ Solution

Collision warning
a)
. The sys-
tem detects a possible colli-
sion with the vehicle in
front.Brake or change course! Use
the foot brake!
Safety distance warning
with the vehicle in front.Increase the safety dis-
tance!
a) The symbol is in colour on the instrument panel with colour display.
Distance warning
If the safety distance with the vehicle ahead is exceeded, the instrument
panel display shows the following warning ⇒ Fig. 138 
(magnified image).
Increase the distance! 
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204Driver assistance systems
WARNING
Failure to heed the warning lamps when they light up and the corre-
sponding messages may result in an accident and injury.
● Never ignore the warning lamps or on-screen messages.
Note
When the Front Assist is connected, the instrument panel display messages
pertaining to other functions may be hidden, such as an incoming call. 
Radar sensor
Fig. 139 On the front
bumper: radar sensor.
On the front bumper there is a radar sensor to detect traffic conditions
⇒ Fig. 139 1
. This sensor can detect vehicles driving ahead at a distance
of up to approx. 120 m.
The radar sensor's visibility may be impaired by dirt, such as mud or snow,
or by environmental influences, such as rain or water mist. In this case the Front Assist Monitoring system does not work. The following message is
shown in the instrument panel display:
Front Assist: Sensor without visibili-
ty!. If necessary, clean the radar sensor ⇒ 
.
When the radar sensor works properly again, the Front Assist will be auto-
matically available again. The message will disappear from the instrument
panel display.
Front Assist operation may be affected by a heavy reverse reflection of the
radar signal. This may occur, for example, in a closed car park or due to the
presence of metal objects (e.g. rails on the road or the panels used on work
sites).
The area ahead of and around the radar sensor should not be covered with
adhesives, additional headlights or the like, as this may have a negative ef-
fect on Front Assist operation.
If structural modifications are made to the vehicle, e.g., if the suspension is
lowered or the front spoiler is modified, Front Assist operation may be affec-
ted. This is why structural modifications should only be assigned to special-
ised workshops. SEAT recommends visiting a SEAT dealership for this.
If the front part of the vehicle is repaired incorrectly, the radar sensor might
lose its setting and Front Assist operation would be affected. This is why re-
pair jobs should only be assigned to specialised workshops. SEAT recom-
mends visiting a SEAT dealership for this.
CAUTION
If you have the impression that the radar sensor is damaged or has lost its
setting, disconnect the Front Assist. This will prevent possible damage. In
this case have it adjusted.
● The sensor may lose its settings if it is knocked, for example, during a
parking manoeuvre. This may compromise the system's efficacy or lead it to
switch off. 

205
Driver assistance systems
● A radar sensor repair requires specialist knowledge and special tools.
SEAT recommends visiting a SEAT dealership for this.
● Snow should be removed with a brush, while ice should be removed
with a solvent-free anti-ice aerosol. 
Handling the Front Assist Monitoring system
The Front Assist Monitoring system is activated whenever the ignition is
switched on.
When the Front Assist is switched off, so are the pre-warning function and
distance warning.
SEAT recommends that the Front Assist always be activated. Exceptions
⇒  page 205, Temporarily switching off the Front Assist Monitoring System
in the following situations.
Switching the Front Assist warning system on and off
With the ignition on, the Front Assist can be switched on and off as follows:
● Select the corresponding menu option using the button for the driver as-
sist systems ⇒ page 75.
● OR: switch the Easy Connect system on or off using the button 
and
the function buttons  and Driver Assist ⇒ page 80
Switching the pre-warning function on or off
The pre-warning function can be switched on or off on the Easy Connect sys-
tem using the button 
and the function buttons  and Driver Assist⇒ 
page 80.
The system maintains the setting the next time the ignition is switched on.
SEAT recommends that the pre-warning function always be switched on. Switching distance warning on or off
If the safety distance with the vehicle ahead is exceeded, the instrument
panel display shows the relevant warning. In such an eventuality, increase
the safety distance
⇒ table on page 203.
The distance warning can be switched on or off on the Easy Connect system
using the button 
and the function buttons  and Driver Assist⇒ page 80.
The system maintains the setting the next time the ignition is switched on.
SEAT recommends that the distance warning always be switched on. 
Temporarily switching off the Front Assist Monitoring
System in the following situations
The Front Assist Monitoring System should be switched off in the following
situations due to the system's limitations ⇒ :
● When the vehicle is being towed.
● When the vehicle is on a roller test bed.
● When the radar sensor is damaged.
● If the radar sensor takes a big knock, for example, in a rear-end colli-
sion.
● If it intervenes several times unnecessarily.
● If the radar sensor is covered temporarily by an accessory such as an ad-
ditional headlight or the like.
● When the vehicle is to be loaded on a lorry, a ferry or train. 
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206Driver assistance systems
WARNING
If the Front Assist is not switched off in the aforementioned situations,
accidents and serious injuries may be caused.
● Switch off the Front Assist in critical situations.

System limitations
The Front Assist Monitoring System has certain physical limitations inherent
in the system. Thus, for example, in certain circumstances some system re-
actions may be inappropriate or occur with delays as far as the driver is con-
cerned. Therefore, be on the lookout in case you have to intervene.
The following conditions may lead the Front Assist Monitoring System not
to react or react too late:
● When taking tight bends.
● If you step on the accelerator too hard
● If the Front Assist is switched off or damaged.
● If the ASR has been manually disconnected.
● If the ESC is controlling.
● If several brake lights on the vehicle or trailer have electrical faults.
● If the radar sensor is dirty or covered.
● If there are metal objects, e.g., rails on the road or the panels used on
work sites.
● If the vehicle is reversing.
● If the vehicle over-accelerates.
● In snow or heavy rain.
● In the case of narrow vehicles such as motorbikes.
● In the case of vehicles not driving straight.
● In the case of vehicles changing lanes. ●
In the case of vehicles approaching each other in the opposite direction.
● Loads and special accessories in other vehicles jutting out over the
sides, front or rear. 
City emergency braking function
Fig. 140 On the instru-
ment panel display: pre-
warning message
The City emergency braking function is part of the Front Assist Monitoring
System and is always active when this system is on.
Depending on the equipment, the City emergency braking function can be
switched on or off on the Easy Connect system using the button 
and the
function buttons  and Driver Assist ⇒ page 80.
The City emergency braking function detects, at speeds between 5 km/h
(3 mph) and 30 km/h (19 mph) approx., the situation of the traffic in front
of the vehicle up to a distance of approx. 10 m.
If the system detects a possible collision with a vehicle in front, the vehicle
prepares for a possible emergency braking ⇒ 
.

209
Driver assistance systems
Indication on the display and warning lamps
Fig. 141 On the instrument panel display: Indication on the Lane Assist system dis-
play (example 1)
Fig. 142 On the instrument panel display: Indication on the Lane Assist system dis-
play (example 2) Indications on the display
The system is active, but not available, either because the minimum
speed has not been reached or because the lane lines are not recog-
nised ⇒ Fig. 141 .
The system is active and available, both lane lines are recognised. The
steering angle is not being corrected at this moment ⇒ Fig. 141 .
The system is operational, a highlighted line A
indicates that there
was a risk of involuntarily crossing the lane line and that the steering is
being adjusted to correct the angle ⇒ Fig. 142 .
The two highlighted lines A
light up simultaneously when both lane
lines are recognised and the Lane Assist function is active ⇒ Fig. 142
.
Control lamps
flashes or
lights upPossible causeSolution

(yellow)Lane Assist active but
not available.The system can not accurately recog-
nise the lane. Please see page 210,
The Lane Assist system is not availa-
ble (the control lamp is lit up yellow).

(green)Lane Assist system ac-
tive and available._
WARNING
If the warning lamps and messages are ignored, the vehicle may stall in
traffic, or may cause accidents and severe injuries.
● Never ignore the warning lamps or text messages.
● Stop the vehicle safely as soon as possible. 
–
–
–
–
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212Driver assistance systems
If the DCC has a fault, the instrument panel display shows the message
Fault: Damping control.
Steering
Power steering becomes more robust in sport mode to enable a more sporty
driving style.
Air conditioning
In vehicles with Climatronic, this can operate in eco mode, especially re-
stricting fuel consumption.
Ambient lighting
The ambient lighting guides located in the interior front door panels of the
Leon FR change colour from white to red when sport mode is activated. 
Setting driving mode
You can select from Normal, Sport, Eco and Individual.
Fig. 144 Centre console:
MODE button The required mode can be selected on the touch screen, in the menu that
opens when the
MODE button is pressed.
An icon on the Easy Connect system display informs about the active mode.
The MODE button light remains lit up yellow when the active mode is differ- ent to normal.
Driving pro-
fileCharacteristics
NormalOffers a balanced driving experience, suitable for everyday
use.
SportProvides a complete dynamic performance in the vehicle, en-
abling the user a more sporty driving style.
EcoPlaces the vehicle in a particularly low state of consumption,
facilitating a fuel-saving driving style that is respectful to the
environment.
IndividualEnables some configurations to be modified by pressing the
Profile settings button. The functions that can be adjusted
depend on the equipment fitted in the vehicle.
WARNING
When operating SEAT Drive Mode, pay attention to all traffic. Doing oth-
erwise could cause an accident.
Note
● The vehicle will start in the mode that was selected at the moment it was
switched off.
● Changing modes can alter vehicle handling. The SEAT Drive Mode func-
tion does not allow configurations that compromise safety under any cir-
cumstances. 