2014 Seat Mii change key battery

Opening and closing
Opening and closing Vehicle key set Remote control vehicle key* Fig. 27
Remote control key Remote control key
With the vehicle key the vehicle may be
locked or unlocked remotely
››› page 45.
The vehicle key includes an emitter and bat-
tery. The receiver is in the interior of the vehi-
cle. The range of the vehicle key with remote
control and new battery is several metres
around the vehicle.
If it is not possible to open or close the vehi-
cle using the remote control key, this should
be re-synchronised ››› page 45 or the bat-
tery changed ››› page 44. Different keys belonging to the vehicle may
be used.
Folding the key shaft in and out
When the button is pressed
››› Fig. 27 A , the
key shaft is released and unfolds.
To fold it
press the button and fold the key
sh
aft in until it locks in place.
Replacing a key
To obtain a spare key and other vehicle keys,
the vehicle chassis number is required.
Each new key must contain a microchip and
be coded with the data from the vehicle elec-
tronic immobiliser. A vehicle key will not work
if it does not contain a microchip or the mi-
crochip has not been encoded. This is also
true for keys cut for the vehicle.
The vehicle keys or new spare keys can be
obtained from a SEAT dealership, a Special-
ised workshop or approved key service quali-
fied to create this kind of key.
New keys or spare keys must be synchron-
ised before use ››› page 45. WARNING
Careless or incorrect use of vehicle keys may
result in severe injury and accident.
● Always take all the keys with you whenever
you leave the vehicle. Children and unauthor-
ised individuals could lock the doors or the boot hatch, start the engine or turn on the ig-
nition, activating electrical systems, the elec-
tric windows, for example.
●
Never leave children or disabled people
alone in the car. They could be trapped in the
car in an emergency and will not be able to
get themselves to safety. For example, de-
pending on the time of the year, tempera-
tures inside a locked and closed vehicle can
be extremely high or extremely low resulting
in serious injuries and illness or even death,
particularly for young children.
● Never remove the key from the ignition if
the vehicle is in motion. The steering may
lock and it will not be possible to turn the
steering wheel. CAUTION
The remote control key contains electronic
components. Protect them from damage, im-
pacts and humidity. Note
● Only use the key button when you require
the corresponding function. Pushing the but-
ton unnecessarily could accidentally unlock
the vehicle or trigger the alarm. It is also pos-
sible even when you are outside the radius of
action.
● Remote control key operation can be great-
ly influenced by overlapping radio signals
around the vehicle working in the same range » 43Technical specifications
Advice
Operation
Safety

Operation
of frequencies (for example, radio
transmitters, mobile telephones).
● Obstacles between the remote control and
the vehicle, bad weather conditions and
draining batteries can considerably reduce
the range of the remote control.
● If the buttons of the vehicle key are press-
ed ››› Fig. 27 or one of the central locking but-
t on
s ››› page 45 is pressed repeatedly in
quick
succession, the central locking briefly
disconnects as protection against overload-
ing. The vehicle is then unlocked. Lock it if necessary. Vehicle mechanical key
Fig. 28
Vehicle mechanical key The vehicle key set may include a mechanical
key
››› Fig. 28 . D
up
licate keys
To obtain a spare key and other vehicle keys,
the vehicle chassis number is required.
Each new key must contain a microchip and
be coded with the data from the vehicle elec-
tronic immobiliser. A vehicle key will not work
if it does not contain a microchip or the mi-
crochip has not been encoded. This is also
true for keys cut for the vehicle.
The vehicle keys or new spare keys can be
obtained from a SEAT dealership, a special-
ised workshop or an approved locksmith
qualified to create them.
Control lamp on the vehicle key Fig. 29
Control lamp on the vehicle key When a button on the vehicle key is pressed,
the control lamp flashes
››› Fig. 29 (arrow)
onc e briefly

. If the button is pressed and
held, the indicator blinks several times, for example: for the convenience opening func-
tion.
When the control lamp does not light upon
pushing a button, the vehicle key batteries
must be changed
››› page 44.
Changing the battery Fig. 30
Vehicle key: battery compartment cov-
er Fig. 31
Vehicle key: removing the battery44

Opening and closing
SEAT recommend having the batteries
changed in a specialised workshop.
The battery is located to the rear of the vehi-
cle key, under a cover.
Changing the battery
● Unfold the vehicle key shaft ››› page 43.
● Remove the cover from the back of the ve-
hicle key ››› Fig. 30 in the direction of the ar-
r o
w ››› .
● Extract the battery from the compartment
using a suitable thin object ››› Fig. 31 .
● Plac

e the new battery in the compartment,
pressing in the direction of the arrow as
shown ››› Fig. 31 ››› .
● Fit the battery compartment cover, pressing
in the direction of the arrow as shown
››› Fig. 30 until it clicks into place. CAUTION
● If the battery is not changed correctly, the
vehicle key may be damaged.
● Use of unsuitable batteries may damage
the vehicle key. For this reason, always re-
place the dead battery with another of the
same voltage, size and specifications.
● When fitting the battery, check that the po-
larity is correct. For the sake of the environment
Please dispose of your used batteries correct-
ly and with respect for the environment. Synchronising the vehicle key
If the button
 is pressed frequently outside
of the vehicle range, it is possible that the ve-
hicle can no longer be locked or unlocked us-
ing the key. In this case, the vehicle key must
be synchronised once more as follows:
● Unfold the vehicle key shaft ›››
page 43.
● Press the button  on the vehicle key. For
this, it must remain with the vehicle.
● Open the vehicle within one minute using
the key shaft.
● Turn on the ignition using the vehicle key.
The key has been synchronised.
● If necessary, fit the cap.
Central locking* and locking
system Introduction Central locking functions correctly when all
the doors and the rear lid are correctly shut.If the driver door is open, the vehicle
cannot
be locked with the key.
The battery of an unlocked vehicle parked for
a long period (e.g. in a private garage) may
run down and fail to start the motor. WARNING
The incorrect use of the central locking sys-
tem may cause serious injuries.
● The central locking system will lock all
doors. A vehicle locked from the inside can
prevent any non-authorised individual from
opening the doors and accessing the vehicle.
Nevertheless, in case of emergency or acci-
dent, locked doors will complicate access to
the vehicle interior to help the passengers.
● Never leave children or disabled people
alone in the vehicle. The central locking but-
ton can be used to lock all the doors from
within. Therefore, passengers will be locked
inside the vehicle. Individuals locked in the
vehicle can be exposed to very high or very
low temperatures.
● Depending on the time of the year, temper-
atures inside a locked and closed vehicle can
be extremely high or extremely low resulting
in serious injuries and illness or even death,
particularly for young children.
● Never leave individuals locked in a closed
and locked vehicle. In case of emergency,
they may not be able to exit the vehicle by
themselves or get help. 45
Technical specifications
Advice
Operation
Safety

Operation
Vehicles with an automatic gearbox
● When the vehicle is at a standstill, depress
the brake or keep it pressed down. The en-
gine switches off.
● The engine will start again as soon as you
release the brake pedal.
● With the selector lever set to position N,
the en gine w
ill not start until a range of gears
is selected or the accelerator pedal is de-
pressed.
Important conditions for the engine to stop
automatically
● The driver's seat belt must be fastened.
● The driver door must be closed.
● The bonnet must be closed.
● The engine must have reached a minimum
temperature.
● The vehicle must have moved since the last
time the engine was stopped.
● The vehicle's battery must be sufficiently
charged.
● The battery temperature must not be too
low or too high.
● The vehicle must not be on a very steep
slope. Conditions for the engine to restart
automatically
The engine can be automatically restarted in
the following cases:
●
If the vehicle starts to moves.
● If the battery voltage drops.
Conditions requiring engine start-up using
the key
The engine has to be manually started in the
following cases:
● If the driver unbuckles his/her seat belt.
● If the driver door is opened.
● If the bonnet is opened.
Switching the Start-Stop system on and off
● Press the button  situated in the centre
console ››› Fig. 93
.
● The button will light up when the Start-Stop
system is switched off.
The engine will start immediately if the vehi-
cle is in Stop mode when the system is
switched off by hand. WARNING
The smart technology included in the hill
hold cannot change the laws of physics. Do
not let the extra convenience afforded by the hill hold tempt you into taking any risks
when driving.
●
Any accidental movement of the vehicle
could result in serious injury.
● The hill hold is not a replacement for driver
awareness.
● Adjust your speed and driving style to visi-
bility, weather, road and traffic conditions.
● The hill hold cannot always keep the vehi-
cle at a standstill on a slope or brake suffi-
ciently when travelling downhill (e.g. on slip-
pery or frozen surfaces). WARNING
The brake servo and the electromechanical
steering do not work when the engine is
switched off.
● The vehicle must never be allowed to move
with the engine switched off.
● Disconnect the Start-Stop system before
working in the engine compartment. CAUTION
The vehicle's battery could be damaged if the
vehicle is used for long periods at very high
outside temperatures. Note
In some cases, it may be necessary to start
the engine by hand using the key. Refer to 116

Emergencies
Connect the battery clamps so they have
good metal-to-metal contact with the battery
terminals.
If the engine fails to start, switch off the start-
er after about 10 seconds and try again after
about 1 minute. WARNING
● Please note the safety warnings referring to
working in the engine compartment
››› page 143.
● The b att
ery providing assistance must have
the same voltage as the flat battery (12V) and
approximately the same capacity (see imprint
on battery). Failure to comply could result in
an explosion.
● Never use jump leads when one of the bat-
teries is frozen. Danger of explosion! Even af-
ter the battery has thawed, battery acid could
leak and cause chemical burns. If a battery
freezes, it should be replaced.
● Keep sparks, flames and lighted cigarettes
away from batteries, danger of explosion.
Failure to comply could result in an explo-
sion.
● Observe the instructions provided by the
manufacturer of the jump leads.
● Do not connect the negative cable from the
other vehicle directly to the negative terminal
of the flat battery. The gas emitted from the
battery could be ignited by sparks. Danger of
explosion. ●
Do not attach the negative cable from the
other vehicle to parts of the fuel system or to
the brake line.
● The non-insulated parts of the battery
clamps must not be allowed to touch. The
jump lead attached to the positive battery
terminal must not touch metal parts of the ve-
hicle, this can cause a short circuit.
● Position the leads in such a way that they
cannot come into contact with any moving
parts in the engine compartment.
● Do not lean on the batteries. This could re-
sult in chemical burns. Note
The vehicles must not touch each other, oth-
erwise electricity could flow as soon as the
positive terminals are connected. Towing and tow starting
Introduction When towing or tow starting, respect the le-
gal requirements.
For technical reasons, it is not possible to
tow a vehicle if the battery is flat. WARNING
A vehicle with a flat battery should never be
towed.
● Never remove the key from the ignition
lock. Otherwise, the steering wheel lock
could suddenly lock. The vehicle would not
be controlled and a serious accident could
ensue. WARNING
When towing the vehicle, the handling and
braking efficiency change considerably.
Please observe the following instructions to
minimise the risk of serious accidents and in-
jury:
● As the driver of the vehicle being towed:
– The brake must be depressed must hard-
er as the brake servo does not operate.
Always remain aware to avoid collision
with the towing vehicle.
– More strength is required at the steering
wheel as the power steering does not op-
erate when the engine is switched off.
● As the driver of the towing vehicle:
– Accelerate gently and carefully.
– Avoid sudden braking and manoeuvres.
– Brake well in advance than usual and
brake gently.
» 183
Technical specifications
Advice
Operation
Safety

Index
Index
A
Abroad Extended stay abroad with your vehicle . . . . . 135
Sale of vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 135
ABS See "Brake assist systems" . . . . . . . . . . . . . . . 104
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Additional equipment . . . . . . . . . . . . . . . . . . . . . 119
Adjust Headlight range . . . . . . . . . . . . . . . . . . . . . . . . . 58
Adjustment Correct sitting position . . . . . . . . . . . . . . . . . . . . . 6
Front seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
rear head restraints . . . . . . . . . . . . . . . . . . . . . . . 9
Steering wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Aerial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Airbags description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . 17, 21 activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Cleaning dash panel . . . . . . . . . . . . . . . . . . . . 133
Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Deactivating the front passenger front airbag . 24
Deactivating using the key switch . . . . . . . . . . . 24
Differences between front passenger front air-bag systems . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
functioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Locking the vehicle after airbag deployment . . 46
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Use of child seats . . . . . . . . . . . . . . . . . . . . . . . . 24
Vehicle care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Air conditioner
Air recirculation . . . . . . . . . . . . . . . . . . . . . . . . . 84
Air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Things to note . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
User instructions . . . . . . . . . . . . . . . . . . . . . . . . 82
Air conditioning system . . . . . . . . . . . . . . . . . . . . . 80 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Air recirculation . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 How it works . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
switch off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
temporarily switch off . . . . . . . . . . . . . . . . . . . . . 84
Air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Aluminium care . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Anodized surfaces . . . . . . . . . . . . . . . . . . . . . . . . 129
Anti-lock brake system (ABS) . . . . . . . . . . . . . . . 104
Anti-theft bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Anti-theft locking bolts . . . . . . . . . . . . . . . . . . . . 174
Anti-theft wheel locking bolts . . . . . . . . . . . . . . . 175
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Ashtray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Aspects to take into account before starting the vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ASR see Brake assist systems . . . . . . . . . . . . . . . . . 104
Assistance systems Brake assist system (BAS) . . . . . . . . . . . . . . . . 104
Cruise control system (CCS) . . . . . . . . . . . . . . . 107
Electronic differential lock system (EDL) . . . . . 104
Electronic stability control (ESC) . . . . . . . . . . . 103
Optical parking system (OPS) . . . . . . . . . . . . . 107
Parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Parking distance warning system . . . . . . . . . . 106
Safety Assist (City Safety Assist function) . . . . 110
Start-Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Traction control system (ASR) . . . . . . . . . . . . . 104
Traction Control (TC) . . . . . . . . . . . . . . . . . . . . . 104
Assist systems Anti-lock brake system (ABS) . . . . . . . . . . . . . . 104
Audible warnings Control and warning lamps . . . . . . . . . . . . . . . . 39
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Seat belt not fastened . . . . . . . . . . . . . . . . . . . . 12
Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Automatic belt retainer . . . . . . . . . . . . . . . . . . . . . 16
Automatic car wash . . . . . . . . . . . . . . . . . . . . . . . 126
Automatic device disconnection . . . . . . . . . . . . . 157
automatic gearbox . . . . . . . . . . . . . . . . . . . . . . . . . 93
Automatic gearbox . . . . . . . . . . . . . . . . . . . . . . . . . 95 driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Ignition key removal lock . . . . . . . . . . . . . . . . . . 87
Kickdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
starting on a slope . . . . . . . . . . . . . . . . . . . . . . . 97
stopping on a slope . . . . . . . . . . . . . . . . . . . . . . 97
Axle loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
B BAS see Brake assist systems . . . . . . . . . . . . . . . . . 104
Battery Change in the vehicle key . . . . . . . . . . . . . . . . . 44
Discharging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
See Vehicle battery . . . . . . . . . . . . . . . . . . . . . . 154
Battery acid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Before starting the vehicle . . . . . . . . . . . . . . . . . . . 5
Belt tensioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Service and disposal . . . . . . . . . . . . . . . . . . . . . 17
Belt tension limiter . . . . . . . . . . . . . . . . . . . . . . . . . 16
Bench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
205