2013 Seat Leon SC lights

180Driving
flash slowly depending on whether or not the vehicle has a driver
information system* 1)
.
– When the engine is running, switch off the traction control
(ASR) 1)
2)
.
– Move the selector lever to position “S” or tiptronic, or select the
driving mode Sport from the SEAT Drive Mode* ⇒ page 211.
– Press the brake pedal firmly with your left foot and hold it down
for at least one second.
– With your right foot, press the accelerator down to the full throt-
tle or kick-down position. The engine speed will stabilise at ap-
prox. 3200 rpm (petrol engine) or approx. 2000 rpm (diesel en-
gine).
– Take your left foot off the brake pedal.
WARNING
● Always adapt your driving style to the traffic conditions.
● Only use the “Launch control programme” when road and traffic con-
ditions permit, and make sure the way in which you drive and accelerate
the vehicle does not inconvenience or endanger other road users.
WARNING (Continued)
● Make sure that the ESC remains switched on. Please note that when
the ASR and ESC are deactivated, the wheels may start to spin, causing
the vehicle to lose grip. Risk of accident!
● After putting the vehicle into gear, the “sport” mode of the ESC
should be deactivated again by briefly pressing the 
OFF
button.
Note
● After using the “Launch control programme”, the gearbox temperature
may have increased considerably. In this case, the programme could be dis-
abled for several minutes. The programme can be used again after the cool-
ing phase.
● Accelerating with the “Launch control programme” places a heavy load
on all parts of the vehicle. This can result in increased wear and tear. 
Inertia mode
The inertia mode enables the kinetic energy of the vehicle to be
harnessed enabling certain stretches to be driven without using
the accelerator. This enables fuel to be saved. Use the inertia mode
to “let the vehicle roll” before, for example, arriving in a town.
Switching on inertia mode
Important: selector lever must be in position D, gradients below
12 %. 
1)
On vehicles with the driver information system, the ESC lamp lights up permanently and
the corresponding text message Stability control deactivated (temporary) appears on the in-
strument panel to indicate the deactivation status.
2) Vehicles without driver information system: the warning lamp flashes slowly/Vehicles with
driver information system: the warning lamp stays on.

185
Driver assistance systems
Control lamp
lights upPossible cause
Cruise control is active
Several warning and control lamps should light up for a few seconds when
the ignition is switched on, signalling that the function is being verified.
They will switch off after a few seconds.
Displayed on the CCS screen
Status Fig. 126: CCS temporarily switched off. The set speed is displayed in small fig-
ures.
System error. Contact a specialised workshop.
CCS switched on. The speed memory is empty.
The CCS is switched on. The set speed is displayed in large figures.
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.
CAUTION
Failure to heed the control lamps and text messages when they appear may
result in faults in the vehicle. 
A
BCD
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189
Driver assistance systems
Adaptive cruise control (ACC)*
Introduction
Fig. 129 Detection area
Adaptive cruise control (ACC) is an extension of vehicle cruise control (GRA)
⇒ 
.
The ACC function allows the driver to establish a cruising speed between 30
and 160 km/h (18 and 100 mph), as well as the time distance from the ve-
hicle ahead. The ACC function will adapt to the vehicle's adaptive cruise
speed at all times, maintaining a safety distance from the vehicle ahead.
The ACC function is based on a radar sensor that can measure the distance
to vehicles ahead.
If the vehicle is equipped with automatic gearbox, the ACC may brake it un-
til it stops completely if the vehicle ahead stops.
Request for driver intervention
During driving, the ACC is subject to certain limitations inherent in the sys-
tem. In other words, in certain circumstances the actual driver will have to
control speed and distance with regard to other vehicles. In this case, the instrument panel display
will tell the driver to intervene by
pressing the brake pedal, and a warning sound will go off ⇒ page 191.
Additional information and warnings:
● SEAT information system ⇒ page 73
● Easy Connect system ⇒ page 79
● Cruise control system (CCS) ⇒ page 184
● Front Assist ⇒ page 202
● Lane Assist ⇒ page 207
● Accessories, parts replacement, repairs and modifications ⇒ page 272
WARNING
The intelligent technology in the ACC cannot overcome the system's own
limitations or change the laws of physics. If used negligently or uninten-
tionally it may cause a serious accident and serious injury. The system is
not a replacement for driver awareness.
● Always adapt speed and safety distance to the vehicle ahead accord-
ing to visibility, weather, road and traffic conditions.
● Do not use the ACC in conditions of poor visibility, on steep roads,
with several bends or in slippery circumstances such as snow, ice, rain or
loose gravel or on flooded roads.
● Never use the ACC when driving off-road or on unpaved roads. The
ACC has only been designed for use on paved roads.
● The ACC does not react on approaching a stationary obstacle, such as
the end of a traffic jam or a broken-down vehicle or a vehicle stopped at
traffic lights.
● 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.
● If the ACC does not reduce speed enough, apply the foot brake imme-
diately. 
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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. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

192Driver assistance systems
On the front bumper there is a radar sensor to detect traffic conditions
⇒ Fig. 131 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
adaptive cruise control (ACC) does not work. The following message is
shown in the instrument panel display: ACC: Sensor without visibility!. If nec-
essary, clean the radar sensor ⇒ 
.
When the radar sensor works properly again, the ACC will be automatically
available again. The message on the instrument panel display will go off
and the ACC can be switched on again.
ACC operation may be affected by a heavy reverse reflection of the radar sig-
nal. 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 behind the radar sensor should not be covered with
adhesives, additional headlights or the likes, as this may have a negative
effect on ACC operation.
If structural modifications are made to the vehicle, e.g., if the suspension is
lowered or the front spoiler is modified, ACC operation may be affected. This
is why structural modifications should only be assigned to specialised work-
shops. 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 ACC operation would be affected. This is why repair jobs
should only be assigned to specialised workshops. SEAT recommends visit-
ing a SEAT dealership for this.
CAUTION
If you have the impression that the radar sensor is damaged or has lost its
setting, disconnect the ACC. 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.
● 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. 

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! 
Safety FirstOperating instructionsPractical TipsTechnical specifications

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. 