2016 Seat Leon 5D cruise control

Driving
On vehicles with the driver information sys-
t em, the E
SC
lamp lights up permanently and
the corresponding text message Stability
control deactivated (temporary) ap-
pears on the instrument panel to indicate the
deactivation status.
– When the engine is running, switch off the
traction contr

ol (ASR)1)
.
– Turn the selector lever to the position “S”
or tiptronic, or else sel

ect the sport driv-
ing mode from the SEAT Drive Profile*
››› page 219.
– Press the brake pedal firmly with your left
foot and ho

ld it down for at least one sec-
ond.
– With your right foot, press the accelerator
down to the f

ull throttle or kick-down posi-
tion. The engine speed will stabilise at
about 3,200 rpm (petrol engine) or about
2,000 rpm (diesel engine).
– Take your left foot off the brake pedal. WARNING
● Alw a

ys adapt your driving style to the traf-
fic conditions.
● Only use the launch control programme
when roa
d and traffic conditions permit, and make sure your manner of driving and accel-
eratin
g the

vehicle does not inconvenience or
endanger other road users.
● Make sure that the ESC remains switched
on. Plea
se note that when the ASR and ESC
are deactivated, the wheels may start to spin,
causing the vehicle to lose grip. Risk of acci-
dent!
● After putting the vehicle into gear, the
“sport” mode of
the ESC should be deactiva-
ted again by briefly pressing the OFF but-
ton. Note
● Aft er u

sing the Launch control programme,
the temperature in the gearbox may have in-
creased considerably. In this case, the pro-
gramme could be disabled for several mi-
nutes. The programme can be used again af-
ter the cooling phase.
● Accelerating with the Launch control pro-
gramme pl
aces a heavy load on all parts of
the vehicle. This can result in increased wear
and tear. Downhill speed control*
The downhill speed control function helps
the driver when driv
in

g down steep gradi-
ents.
Downhill speed control is activated when the
selector lever is in D/S and the driver applies
the foot brake. The automatic gearbox auto-
matically engages a lower gear that is suita-
ble for the slope. The downhill speed control
function attempts to maintain the speed at
which the vehicle was travelling when the
foot brake was applied (subject to the laws of
physics and technical drive limitations). It
may be necessary to adjust the speed again
using the foot brake in certain situations. Giv-
en that the downhill speed control can only
change down to 3rd gear, on very steep de-
scents the tiptronic mode may be required. In
this case, manually reduce the tiptronic to
2nd or 1st gear to use the engine brake and
reduce the charge on the brakes.
Downhill speed control is deactivated as
soon as the road levels out again or you
press the accelerator pedal.
On vehicles with cruise control system*
››› page 195, downhill speed control is acti-
vated when you set a cruising speed. »1)
Vehicles without driver information system: the
warnin g l

amp flashes slowly/Vehicles with driver in-
formation system: the warning lamp stays on. 185
Technical data
Advice
Operation
Emergencies
Safety

Driver assistance systems
The Auto Hold function is automatically
t urned off
if
the following conditions are
met:
Manual gearboxAutomatic gearbox
1.
If any of the conditions mentioned on
››› page 194, Conditions for keeping the vehicle
stationary with the Auto Hold function are no lon- ger met.
2.If the engine is running irregularly or an anomalyis detected.
3.If the engine is turnedoff or stalls.If the engine is switch- ed off.
4.The clutch and the ac-
celerator are pressed at the same time.If the accelerator is pressed.
5.
If any of the tyres hasonly minimal contact
with the ground, e.g. in the case of axle articu- lation. WARNING
The smart technology incorporated into the
Auto Ho l

d function cannot defy the laws of
physics; it only works within the limits of the
system. The greater convenience provided by
the Auto Hold function should never tempt
you to take any risk that may compromise
safety.
● Never leave the vehicle running and with
the Auto Hol
d function switched on. ●
The Auto Ho l

d function cannot always keep
the vehicle stationary uphill or downhill or
stop it sufficiently, for example, on slippery
or frozen surfaces. Note
Before entering a car wash, always switch off
the Aut o Hol

d function, because if the elec-
tronic parking brake is automatically connec-
ted, it may cause damage. Cruise control system (CCS)*
Oper ation Fig. 196
Instrument panel display: CCS status
indic ation s Read the additional information carefully
› ›
›

 page 39
The cruise control system (CCS) is able to
maintain the set speed from 20 km/h (15
mph).
The CSS only reduces vehicle speed by ceas-
ing to accelerate, not by actively braking the
vehicle ››› .
C ontr
o

l lamp
When the warning lamp  is lit, cruise con-
trol is active.
Several warning and control lamps light up
for a few seconds when the ignition is switch-
ed on, signalling that the function is being
verified. They will switch off after a few sec-
onds.
Displayed on the CCS screen
Status Fig. 196:
CCS temporarily switched off. The set
speed is displayed in small figures.
System error. Contact a specialised work-
shop.
CCS switched on. The speed memory is
empty.
The CCS is switched on. The set speed is
displayed in large figures. »
A B
C
D
195
Technical data
Advice
Operation
Emergencies
Safety

Operation
WARNING
Use of the cruise control could cause acci-
dents and sev
ere injuries if it is not possible
to drive at a constant speed maintaining the
safety distance.
● Do not use the cruise control in heavy traf-
fic, if the dis
tance from the vehicle in front is
insufficient, on steep roads, with several
bends or in slippery circumstances (snow,
ice, rain or loose gravel), or on flooded roads.
● Never use the CCS when driving off-road or
on unpav
ed roads.
● Always adapt your speed and the distance
to the v
ehicles ahead in line with visibility,
weather conditions, the condition of the road
and the traffic situation.
● To avoid unexpected operation of the cruise
contro
l system, turn it off every time you fin-
ish using it.
● It is dangerous to use a set speed which is
too high for the pr
evailing road, traffic or
weather conditions.
● When travelling down hills, the CCS cannot
maintain a c
onstant speed. The vehicle tends
to accelerate under its own weight. Select a
lower gear or use the foot brake to slow the
vehicle. WARNING
Observe the safety warnings ›››
in Warning
and contr o
l lamps on page 109. Operating the cruise control system*
Read the additional information carefully
›› ›

 page 39
The value indicated in the table in brackets
(in mph, miles per hour) only refers to instru-
ment panels with indications in miles.
Changing gear in CCS mode
The CCS decelerates as soon as the clutch
pedal is pressed, intervening again automati-
cally after a gear is engaged.
Travelling down hills with the CCS
When travelling down hills the CCS cannot
maintain a constant speed. Slow the vehicle
down using the brake pedal and reduce
gears if required.
Automatic off
The cruise control system (CCS) is switched
off automatically or temporarily:
● If the system detects a fault that could af-
fect the w

orking order of the CCS.
● If you press and maintain the accelerator
pedal f
or a certain time, driving faster than
the stored speed.
● If the dynamic driving control systems in-
terv
ene (e.g. ASR or ESC).
● If the airbag is triggered. Adaptive Cruise Control ACC*
Introduction Fig. 197
Detection area. 

›› ›

table on page 2
The adaptive cruise control (ACC) is an exten-
sion of the normal cruise control system
(CCS) ››› .
The A C
C

function allows the driver to estab-
lish a cruise speed of between 30 and 210
km/h (18 and 150 mph), as well as the tem-
porary distance required with regard to the
vehicle in front. The ACC function will adapt
the vehicle's cruise speed at all times, main-
taining a safe distance with the vehicle in
front.
The ACC function is based on a radar sensor
that can measure the distance to the vehicles
in front.
196

Driver assistance systems
Radar sensor Fig. 199
On the front bumper: radar sensor. A radar sensor is installed on the front bump-
er t
o det
ermine the tr
affic situation
››› Fig. 199 1 . This sensor can detect vehi-
c l
e

s in front up to a distance of approximately
120 m.
The radar sensor's visibility may be impaired
by dirt, mud or snow, or by environmental in-
fluences such as rain or mist. In this case the
adaptive cruise control (ACC) does not work.
The instrument panel displays the following
message: ACC: No sensor vision! If
necessary clean the radar sensor ››› .
When the r a
d

ar sensor begins to operate
properly again, the ACC will automatically be
available again. The message on the instru-
ment panel screen will switch off and the ACC
will be reactivated again. ACC operation may be affected by a strong ra-
dar rev

erse reflection. This may occur, for ex-
ample, in a closed car park or due to the
presence of metallic objects (e.g. rails on the
road or sheets used in road works).
The area in front of and around the radar sen-
sor should not be covered with adhesives,
additional or similar headlights, as this may
negatively affect ACC operation.
If structural modifications are made to the ve-
hicle, for example, if the suspension is low-
ered or the front spoiler is modified, ACC op-
eration may be affected. So structural modifi-
cations should only be made by specialised
workshops. SEAT recommends visiting a SEAT
dealership for this purpose.
If work is done incorrectly on the front of the
vehicle, the radar sensor could be damaged
or lose its settings, and ACC operation may
be affected. So repair work should only be
made by specialised workshops. SEAT recom-
mends visiting a SEAT dealership for this pur-
pose. CAUTION
If you have the sensation that the radar sen-
sor is d

amaged or has lost its settings, dis-
connect the ACC. This will avoid possible
damage. If this occurs have it adjusted.
● The sensor may become damaged or lose
its settin
gs when knocked, for example, dur- ing a parking manoeuvre. This may compro-
mise the sy
s

tem's efficacy or disconnect it.
● Repairs to the radar sensor require special-
ist
knowledge and special tools. SEAT recom-
mends visiting a SEAT dealership for this pur-
pose.
● Clean away the snow with a brush and the
ice pref
erably with a solvent-free de-icer
spray. 199
Technical data
Advice
Operation
Emergencies
Safety

Operation
Operating the Adaptive Cruise Control
A C
C Fig. 200
On the left of the steering column:
thir d l
ev
er for operating the Adaptive Cruise
Control. Fig. 201
On the left of the steering column:
thir d l
ev

er for operating the Adaptive Cruise
Control. When the Adaptive Cruise Control (ACC) is
c
onnect
ed, the gr

een control lamp  will
light up on the instrument panel, and the
programmed speed and ACC status will be
displayed ››› Fig. 198.
Conditions for the adaptive cruise control to
be activated ● The selector lever must be at the D or S po-
sition or in the tiptronic
selection track. In
manual gearbox any forward gear must be
engaged, except the 1st gear.
● In vehicles with manual gearbox, if there is
no programmed s
peed, drive at least at
30 km/h (18 mph).
Speed control
When the ACC is connected, speed can be
programmed and adjusted. The programmed
speed must be different from the speed at
which the vehicle travels if the distance is be-
ing adjusted at the time.
What functions can be operated?
If you activate the ACC the current speed can
be programmed as the “control speed”.
During driving, control can be operated at
any time and the speed also modified. The following settings can also be adjusted:
●
Distance.
● Driving Programme.
● Driving style.
Activatin
g/Deactivating
Any speed 1)
between 30 and 210 km/h (19
and 150 mph) can be adjusted.
Activating the ACC
● Pull the lever to position 1
› ›
› Fig. 200
.
ACC standby will be shown on the instrument
panel display.
Programme speed and activate control
● Press the SET
› ›
› Fig. 201
button to pro-
gramme current speed.
● Automatic gearbox: apply the brake pedal
to activat
e control with the vehicle stationary.
Deactivating the ACC
● Move the lever to position 0 until it en-
g ag
e

s. The text ACC: off appears.
Altering speed
● To increase or reduce speed step by step,
pres
s the lever up/down briefly ›››
Fig. 201. 1)
Different speed limits apply in each country and
depend on the unit indic

ated on the speedometer.
200

Driver assistance systems
Any modification to the programmed speed
i s
sho
wn on the bottom left part of the instru-
ment panel display.
Adjusting distance level
The distance according to speed with regard
to the vehicle in front can be controlled on
the Easy Connect system on 5 levels
›››  page 27.
In wet road conditions, you should always set
a larger distance with regard to the vehicle in
front than when driving in dry conditions.
The following distances can be preselected:
● Very short
● Short
● Media
● Long
● Very long
You can u
se the Easy Connect system to ad-
just the level of distance that should be ad-
justed when the ACC is switched on with the  button and the
S
ETUP and
Driv
er a
s
sistancefunction buttons
››
›
 page 27.
Adjusting the driving programme
In vehicles with driving profile selection
(SEAT Drive Profile), the profile selected can
influence acceleration behaviour
››› page 219. The following driving programmes items can
be selected:
● Norm

al
● Sport
● Eco
In vehic
les without the driving profile selec-
tion function, acceleration behaviour can be
influenced by selecting a driving programme
on the Easy Connect system using the  button and the
S
ETUP and
Driv
er a
s
sistance function buttons
››
›
 page 27.
The following conditions may lead the ACC
not to react:
● If the accelerator is pressed.
● If there is no gear engaged.
● If the ESC is controlling.
● If the driver is not wearing his/her seat
belt.
● If sev

eral brake lights of the vehicle or elec-
trically
connected trailer are damaged.
● If the vehicle is reversing.
● Driving faster than 210 km/h (150 mph). WARNING
There is a danger of rear collision when the
minimum dis t

ance to the vehicle in front is
exceeded and the speed difference between
both vehicles is so great that a speed reduc- tion by the ACC will not suffice. In this case
the brak
e ped

al should be applied immedi-
ately.
● The ACC may not be able to detect all situa-
tions pr
operly.
● “Stepping” on the accelerator may cause
the ACC
not to intervene in braking. Driver
braking will have priority over intervention by
the speed control or adaptive cruise control.
● Always be ready to use the brakes!
● Observe country-specific provisions gov-
erning ob
ligatory minimum distances be-
tween vehicles. Note
● The progr ammed s

peed is erased once the
ignition or the ACC are switched off.
● When the traction control system (ASR) is
deactivat
ed during acceleration or else the
ESC is activated in Sport* Mode
( ››› page 110), the ACC switches off automati-
cally.
● In vehicles with the Start-Stop system, the
engine swit
ches off automatically during the
ACC stopping phase and restarts automatical-
ly to begin driving. Vehicles with an automatic gearbox
If the vehicle is equipped with automatic
g
e
arbo

x, the ACC can brake the vehicle until »
201
Technical data
Advice
Operation
Emergencies
Safety

Operation
it stops completely if a vehicle in front of it
s t
op
s.
The ACC will still be available for a few sec-
onds. The vehicle will restart by itself if the
vehicle in front moves (traffic jam assistant).
Disconnection criteria
The ACC will switch off if the driver applies
the brake pedal or the driver's door is
opened.
Restarting the vehicle with the ACC manually
The ACC can be activated again by moving
the lever to position 2
› ›
› Fig. 202
. CAUTION
● If y

our vehicle with ACC does not start up
as expected, you can drive off by briefly step-
ping on the accelerator.
● The Start-Stop system usually acts if you
are drivin
g with ACC. Interrupting control
Fig. 202
On the left of the steering column:
thir d l
ev

er for operating the Adaptive Cruise
Control. Important: the ACC is active.
Int
erruptin
g c

ontrol during driving
● Move the lever to the position 3 . The
ACC
s t

andby message is displayed to the driver.
or
● Brake.
● To resume the programmed speed, turn the
lever t
o position 2 .
Int errupt
s
peed control with the vehicle sta-
tionary
Applies to vehicles with automatic gearbox:
● Move the lever to the position 3 . The
ACC
s t

andby message is displayed to the driver. ●
To re
sume control, apply the brake and turn
the lever to position 2 .
WARNING
It is dangerous to activate control and resume
the progr ammed s

peed if the road, traffic or
weather conditions do not permit this. Risk of
accident! Setting the distance
Fig. 203
Control lever: setting the distance. ●
To display the distance currently program-
med, briefly pr
e

ss the rocking button
››› Fig. 203.
● To increase/reduce the distance one level,
pres
s the rocking button again towards the
left/right. The instrument panel display
modifies the distance between both vehicles.
If the vehicle approaches another vehicle de-
tected in front of it, the ACC reduces the
202

Driver assistance systems
speed accordingly and then controls the ad-
ju s
t
ed distance. If the vehicle detected in
front accelerates, the adaptive cruise control
will also accelerate up to the target speed
programmed at most.
The greater the speed, the greater the dis-
tance in metres should be ››› . We recom-
mend the settin g
Di

stance 3. WARNING
With regard to distance setting, the driver is
re s

ponsible for observing country-specific
legislation. Driver messages
 AC
C not available
The sy
stem can no longer continue to guar-
antee safe vehicle detection and will be de-
activated. The sensor has lost its setting or is
damaged. Take the vehicle to a specialised
workshop and have the fault repaired.
 ACC: currently not available. No sensor vi-
sion
 ACC and Front Assist: currently not availa-
ble. No sensor vision
This message will be displayed to the driver if
the radar sensor's vision is impaired due, for example, to leaves, snow, heavy fog or dirt.
Cl
e

an the sensor.
 ACC: currently not available. Gradient too
steep
The maximum road slope has been excee-
ded, hence safe ACC operation cannot be
guaranteed. The ACC cannot be switched on.
 ACC: only available in D, S or M
Select the D/S or M position on the selector
lever.
 ACC: parking brake applied
The ACC is deactivated if the parking brake is
applied. The ACC is available once again after
the parking brake is released.
 ACC: currently not available. Intervention
of stability control
The message for the driver is displayed when
the electronic stability control (ESC) inter-
venes. In this case, the ACC is automatically
switched off.
 ACC: Take action!
The message for the driver is displayed if,
when the vehicle starts up on a hill with a
mild slope, the vehicle rolls back even al-
though the ACC is activated. Apply the brake
to stop the vehicle from moving/colliding
with another vehicle.  ACC: speed limit
The mes
sage for the driver is displayed if, in
vehicles with manual gearbox, the current
speed is too low for the ACC mode.
The speed to be stored must be at least
30 km/h (18 mph). The speed limiter
switches off if the speed falls below 20 km/h
(12 mph).
 ACC: available as of the 2nd gear
The ACC is operational as of the 2nd gear
(manual gearbox).
 ACC: engine speed
The message for the driver is displayed if,
when the ACC accelerates or brakes, the driv-
er does not shift up or down a gear in time,
which means exceeding or not reaching the
permissible engine speed. The ACC switches
itself off. A buzzer warning is heard.
 ACC: clutch pressed
Vehicles with a manual gearbox: pressing the
clutch pedal for longer abandons control
mode.
Door open
Vehicles with automatic gearbox: the ACC
cannot be activated with the vehicle station-
ary and the door open.
203
Technical data
Advice
Operation
Emergencies
Safety