2017 Seat Mii sensor

Operation
●
When cl e
aning the sensors with high-pres-
sure or steam cleaning equipment, spray the
sensors briefly at a distance of no less than
10 cm.
● Different sources of noise can produce er-
rors
in the parking distance warning system,
e.g. parking distance warning systems from
other vehicles, inductive loops or construc-
tion works machines.
● Retrofitting of components to the vehicle,
such a
s a bicycle carrier, may interfere with
the function of the parking distance warning
system. Parking distance warning system
Fig. 151
Parking distance warning system
sen sor
s

on the rear bumper The sensors of the parking distance warning
sy
s
t

em are situated on the rear bumper
››› Fig. 151. Switching the parking distance warning sys-
tem on and off
●
Swit

ching on: With the ignition swit
ched
on, select reverse gear. A short audible warn-
ing confirms that the parking distance warn-
ing system is switched on and functioning.
● Switching off: Rele
ase reverse gear.
Special features of the parking distance
warning system
● The parking distance warning system
sometimes r
egisters water on the sensors as
an obstacle.
● If the distance does not change, the warn-
ing sign
al will sound less loudly after a few
seconds. If the continuous signal sounds, the
volume will remain constant.
● When the vehicle moves away from the ob-
stac
le, the beeping sound automatically
switches off. When getting close again, it re-
connects.
● Your SEAT dealership can adjust the volume
of the warnin
g signals. Note
A fault in the parking distance warning sys-
tem i s

indicated through a brief audible warn-
ing that is constant for about 3 seconds when
switching it on the first time. Check the park-
ing distance warning system at a Specialised
workshop as soon as possible. Optical parking system* (OPS)
Fig. 152
On-screen OPS display: A has de-
tect ed an o

bstacle in the collision zone; B has detected an obstacle in the segment;
C zone recorded behind the vehicle.
The optical parking system is an extension of
the p
ark
in

g distance warning system
››› page 154.
The radio screen displays the area behind the
vehicle recorded by the sensors. Any obsta-
cles are displayed in relation to the vehicle
››› .
FunctionNecessary operations
Switching the
display on:Switching on the
››› page 154 park-
ing distance warning system. The
OPS switches on automatically.
Switching the
display off man-
ually:Release reverse gear. 154

Driver assistance systems
Zones explored
B ehind the
v
ehicle ››› Fig. 152 C , the zone
an aly
sed r

eaches a distance of up to 150 cm
and around 60 cm to the sides.
Screen display
The image displayed represents the super-
vised zones in several segments. As the vehi-
cle moves closer to an obstacle, the segment
moves closer to the vehicle displayed A or
B . When the penultimate segment is dis-
p l
a

yed, this means that the vehicle has
reached the collision zone. Stop the vehicle!
Distance from
the vehicle to
the obstacleAudible
warning
Displayed in col-
our on the screen: colour of the seg-ment if an obsta-cle is recognised
behind:
approx. 31-150
cmbeeping soundYellow
behind:
approx. 0-30 cmperma- nent
soundRed WARNING
Do not be distracted from traffic to look at the
sc r

een. Note
● SEA T r

ecommends practising using the
parking distance warning system in a traffic-
free zone or in a car park to familiarise your-
self with the system and its operation.
● The display on the radio screen of the area
explor
ed by the sensors may take up to 5 sec-
onds. Cruise control* (Cruise control
sys
t

em - CCS)
Control lamp
It lights upPossible cause 
This cruise control system maintains the
set speed of the vehicle.
Several warning and control lamps light up
f
or a f
ew sec

onds when the ignition is switch-
ed on, signalling that the function is being
verified. They will switch off after a few sec-
onds. WARNING
If the warning lamps are ignored, the vehicle
ma y

stall in traffic, or may cause accidents
and severe injuries.
● Never ignore the warning lamps. CAUTION
Failure to heed the warning lamps when they
appe ar m

ay result in faults in the vehicle. Cruise control operation
Read the additional information carefully
›› ›

 page 24
The cruise control system (CCS) is able to in-
dividually maintain the set speed when driv-
ing forwards from approx. 20 km/h (15 mph).
The CCS only slows down by reducing the ac-
celerator but not by braking ››› .
T r
av

elling 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 increase the stored speed by press-
ing the acc
elerator pedal for a certain time.
● If the brake pedal is pressed. »
155
Technical data
Advice
Operation
Emergencies
Safety

Operation
● If the g
e
ar is changed with the manual
gearbox.
● If the airbag is triggered. 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. Safety Assist* (City Safety As-
s
i
s

t function)
Introduction The City Safety Assist function covers driving
sit
uation

s at a distance of about 10 metres in
front of the vehicle, in a speed range of ap-
proximately 5-30 km/h (3-19 mph).
When the system detects a possible collision
with a vehicle in front, the vehicle prepares
for a possible emergency braking ››› .
If the driv
er doe

s not react to an imminent
collision, the system can automatically brake
the vehicle in order to reduce speed faced
with a possible collision. The system can
help to reduce the consequences of an acci-
dent.
If the City Safety Assist function determines
that the driver has braked insufficiently when
faced with an imminent collision, the system
can increase the brake force in order to re-
duce speed. The system can help to reduce
the consequences of an accident. WARNING
The smart technology in the City Safety As-
si s

t system cannot change the limits imposed
by the laws of physics and by the system it-
self. The increased convenience offered by
the City Safety Assist system should never
prompt you to take risks. The driver always assumes the responsibility of braking in
time.
●
The City Safety Assist function cannot pre-
vent ac

cidents or serious injury by itself.
● The City Safety Assist system may carry out
unw
anted brake interventions in complex
driving situations e.g. when a vehicle crosses
at a short distance. WARNING
Relying on the City Safety Assist system in
c ity driv

ing as part of one's driving behaviour
may cause accidents and serious injury. The
system is not a replacement for driver aware-
ness.
● 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.
● The City Safety Assist function does not re-
act to peop
le, animals or vehicles that cross
or move in the opposite direction in the same
lane.
● If after switching on the City Safety Assist
function the
vehicle begins to move, slow the
vehicle with the foot brake. CAUTION
If you suspect that the City Safety Assist la-
ser sensor i s

damaged, switch it off. This will
avoid additional damage. 156

Driver assistance systems
●
Any r
eparation of the laser sensor requires
specialist knowledge. SEAT recommends tak-
ing your car in for technical service. Note
● If the C ity

Safety Assist function activates a
brake, the brake pedal range is reduced. This
makes the brake pedal seem “harder”.
● Automatic brake intervention by the City
Safety As
sist function can be cancelled by
pressing the clutch pedal, the accelerator
pedal or by a corrective intervention.
● During automatic braking by the City Safety
Assi
st function you may hear unusual noises.
This is normal and is produced in the brake
system. Warning and control lamp
The City Safety Assist function is switched on
ev
er
y

time the ignition is switched on. No
special indication is produced.
If the City Safety Assist function is switched
off or on, or if there is an error in the system,
it will be shown by a control lamp on the in-
strument panel display. 

It lights up
The City Safety Assist
function has been
switched on manual-
ly using the
 button ››› Fig. 155.
The control lamp turns off after
about 5 seconds. 
Flashes
Fast: The City Safety
Assist system func-
tion brakes automat-
ically or has braked
automatically.
Control lamp turns off automati-
cally.
Slow: City Safety As-
sist function is not
currently available.
If the vehicle is stopped, switch
off the engine and switch it on
again. If necessary, inspect the
laser sensor (dirt, frost)
›››
in
Laser sensor on page 158. If it
still does not function, refer to a
Specialised workshop to have
the system inspected.  
Flashes
Within the operating
area of 5-30 km/h
(3-19 mph): the City
Safety Assist func-
tion has been
switched off manual-
ly using the
 button
››› Fig. 155.
Switch on the City Safety Assist
function manually using the
  button ››› Fig. 155. Several warning and control lamps should
light
up f
or a f

ew seconds when the ignition is switched on, signalling that the function is
being v

erified. They will switch off after a few
seconds. WARNING
If the warning lamps are ignored, the vehicle
ma y

stall in traffic, or may cause accidents
and severe injuries.
● Never ignore the warning lamps.
● Stop the vehicle safely as soon as possible. CAUTION
Failure to heed the warning lamps when they
appe ar m

ay result in faults in the vehicle. 157
Technical data
Advice
Operation
Emergencies
Safety

Operation
Laser sensor Fig. 153
In the windscreen: laser sensor for
the C ity

Safety Assist function. Fig. 154
Laser sensor detection area. A laser sensor on the windscreen
››
›
Fig. 153
allows the system to detect driving situations
in front of the vehicle.
Vehicles ahead can be detected up to a dis-
tance of about 10 m. WARNING
The laser beam on the sensor can produce se-
rious injurie

s to the eyes.
● Never focus optical devices, e.g. a camera,
a micro
scope or a magnifying glass closer
than 100 mm from the laser sensor.
● Note that the laser beam can stay active
when the City
Safety Assist system is switch-
ed off or unavailable. The laser beam is not
visible to the human eye. CAUTION
If the windscreen is dirty or frosted in the
are a of

the laser sensor, e.g. due to rain, mist
or snow, the City Safety Assist system may
fail to operate as a result.
● Always keep the laser sensor area free of
dirt and ic
e.
● Use a small brush to remove snow and a
de-icer spr
ay to remove ice. CAUTION
A damaged windscreen in the laser sensor
are a m

ay cause the City Safety Assist func-
tion to stop working.
● Replace the windscreen if it is scratched,
crac
ked or chipped by stones in the laser sen-
sor area. Only use a windscreen authorised
by SEAT. Carrying out repairs is not permitted
(e.g. in the case of damage suffered in an im-
pact from a stone). ●
When rep l

acing the windscreen wipers, on-
ly use windscreen wipers authorised by SEAT.
● Do not paint the laser sensor area on the
winds
creen or cover it with adhesives or oth-
er materials. Function
Fig. 155
In the lower part of the centre con-
so l
e: B

utton for the City Safety Assist func-
tion. Switching on and off the City Safety Assist
f
u
nction
● Pr

ess the ››› Fig. 155
button on the centre
console.
When the City Safety Assist function is
switched on, the control lamp   lights up
on the dash panel within the operational
range, i.e. for speeds between 5-30 km/h
(3-19 mph).
158

Driver assistance systems
Switch off the City Safety Assist function in
the f o
l
lowing situations
Switching off the City Safety Assist function is
recommended in the following situations
››› :
● While the vehicle is being towed.
● If the vehicle has been taken to an auto-
m atic
c

ar wash.
● If the vehicle is above a test bed.
● If the laser sensor is faulty.
● After the laser sensor has been involved in
a col
lision.
● When driving off road (overhanging branch-
es).
● If o

bjects are protruding above the bonnet,
e.g. a loa
d carried on the roof that signifi-
cantly protrudes over the front.
● If the windscreen is damaged in the laser
sensor are
a. WARNING
Failure to switch off the City Safety Assist
fu nction in the abo

ve situations may result in
accidents and serious injury.
● Switch off the City Safety Assist function in
critica
l situations. Special driving situations
Fig. 156
A: Vehicle on a bend. B: Motorcyclist
driv in
g ahe

ad out of range of the laser sen-
sor. Fig. 157
Other vehicles changing lanes The City Safety Assist function is limited by
the l
a
w

s of physics and by the nature of the
system itself. For this reason, this may pro-
duce reactions from the City Safety Assist
system in certain circumstances that are late
or unexpected by the driver. For this reason,
always pay due attention and if necessary, in-
tervene.
For example, the following driving situations
require special attention:
Driving through a bend
When entering or leaving a “long” bend, the
vehicle may decelerate when the laser sensor
detects a vehicle travelling in the opposite
lane ››› Fig. 156 A. To interrupt deceleration
you can accelerate, turn the steering wheel or
press the clutch.
Narrow vehicles in front
The laser sensor will only detect narrow vehi-
cles in front if they are in the sensor's detec-
tion zone ››› Fig. 156 B. This applies especial-
ly to narrow vehicles such as motorbikes.
Other vehicles changing lanes
Vehicles moving into your lane in close prox-
imity can cause unexpected braking from the
City Safety Assist system ›››
Fig. 157. To inter-
rupt deceleration you can accelerate, turn the
steering wheel or press the clutch. »
159
Technical data
Advice
Operation
Emergencies
Safety

Operation
Possible malfunction in the laser sensor
If l
a
ser sensor operation is impaired, for ex-
ample due to heavy rain, mist, snow or dirt,
the City Safety Assist system function is tem-
porarily switched off. On the instrument pan-
el display the control lamp  flashes.
When the fault in the laser sensor has been
rectified, the City Safety Assist system func-
tion automatically becomes available again.
The control lamp  switches off.
The following conditions could prevent the
City Safety Assist system from functioning:
● Tight bends.
● Accelerator pressed all the way down to the
floor.
● If the C

ity Safety Assist system is switched
off or there i
s a fault ››› page 157.
● If the laser sensor is dirty, covered or over-
heated ›

›› page 158.
● In the event of snow, heavy rain or dense
fog.
● If ther

e are vehicles in front.
● Vehicles changing lanes.
● Vehicles moving in the opposite direction
in the same lane.
● V

ery dirty vehicles with a low degree of re-
flection.
● Pre

sence of thick dust. Hill driving assistant*
Operation This function is only included in vehicles with
ESC.
The hi
l

l driving assistant helps the driver to
move off and upward on a hill when the vehi-
cle is stationary.
The system maintains brake pressure for ap-
proximately two seconds after the driver
takes his foot off the brake pedal to prevent
the vehicle from lurching backward when it is
started. During these 2 seconds, the driver
has enough time to release the clutch pedal
and accelerate without the vehicle moving
and without having to use the handbrake,
making start-up easier, more comfortable
and safer.
These are the basic operation conditions:
● being on a ramp or hill/slope,
● doors closed,
● vehicle completely stationary,
● engine running and foot on the brake,
● besides having a gear engaged or being in
neutral f

or manual gear change and with the
selector lever at positions S, D or R in vehi-
cles with an automatic gearbox.
This system is also active when reversing up-
hill. WARNING
● If y

ou do not start the vehicle immediately
after taking your foot off the brake pedal, the
vehicle may start to roll back under certain
conditions. Depress the brake pedal or use
the hand brake immediately.
● If the engine stalls, depress the brake ped-
al or u
se the hand brake immediately.
● When following a line of traffic uphill, if you
want t
o prevent the vehicle from rolling back
accidentally when starting off, hold the brake
pedal down for a few seconds before starting
off. Note
The Official Service or a specialist workshop
can t el

l you if your vehicle is equipped with
this system. Start-Stop System
C ontr
o

l lamps 
It lights up
The Start-Stop system is enabled.
160

Advice
●
All
repairs and modifications to the vehicle
should only be performed by a specialised
workshop. Repairs and malfunctions in the air-
bag sy
s

tem When performing repairs and technical mod-
ification
s,

SEAT's directives must be ob-
served! ››› Modifications and repairs to the front bump-
er
, door
s, fr

ont seats, and repairs to the roof
or chassis should only be carried out in a
specialised workshop. These components
may contain parts or sensors belonging to
the airbag system.
If work is carried out on the airbag system or
parts have to be removed and fitted on the
system when performing other repair work,
parts of the airbag system may be damaged.
The consequence may be that, in the event of
an accident, the airbag inflates incorrectly or
does not inflate at all.
So that the effectiveness of the airbag is not
reduced and that removed parts do not cause
any injuries or environmental pollution, regu-
lations must be observed. These require-
ments are known to specialised workshops.
Modifications to the vehicle suspension may
affect the operation of the airbag system in
the event of collision. For example, if wheel and tyre combinations not approved by SEAT
are used, or if

the vehicle height is lowered,
the suspension is stiffened or the suspension
springs, telescopic arms, dampers, etc., are
modified, the results received by the airbag
sensors and sent to the control unit may not
be accurate. For example, some modifica-
tions to the suspension could increase the
force measured by the sensors and result in
the triggering of the airbag systems in colli-
sions. Under normal conditions, the meas-
ured values would be lower and the airbag
would not have been triggered. Other modifi-
cations may reduce the forces measured by
the sensors and prevent the airbags from be-
ing triggered when they should. WARNING
Repairs or modifications which are not per-
formed c orr

ectly may result in damage or er-
rors in the vehicle operation, affecting the ef-
fectiveness of the airbag systems. This could
result in serious or fatal accidents.
● All repairs and modifications to the vehicle
should on
ly be performed by a specialised
workshop.
● Airbag modules must never be repaired: if
damag
ed, they must be replaced.
● Never fit recycled or reused airbag compo-
nents in
your vehicle. WARNING
Modifications to the vehicle suspension, in-
cludin g the u

se of unauthorised wheel and
tyre combinations, may affect the perform-
ance of the airbags and increase the risk of
serious or fatal injury in the event of acci-
dent.
● Never fit suspension components which are
not identica
l to the original parts in the vehi-
cle.
● Never use wheel and tyre combinations not
appro
ved by SEAT. Retrofitting of mobile phones
An exterior aerial is required for the use of
tw
o-w
a

y radios in the vehicle.
The retro-fitting of electrical or electronic ap-
pliances in the vehicle is subject to their ap-
proval for use in your vehicle. Under certain
circumstances, this could mean that your ve-
hicle registration documents are no longer
valid.
SEAT has approved your vehicle for use with
two-way radios providing the following condi-
tions are observed:
● The exterior aerial must be mounted pro-
fes
sionally.
● The maximum transmitting power is 10
watts.
166