2023 PEUGEOT 408 change key battery

29
Access
2Back-up procedures
Lost keys, remote control,
electronic key
Go to a PEUGEOT dealer with the vehicle's
registration certificate, your personal
identification documents and if possible, the label
bearing the key code.
The PEUGEOT dealer will be able to retrieve the
key code and the transponder code, enabling a
new key to be ordered.
Complete unlocking/locking
of the vehicle with the key
Use this procedure in the following situations:
– Remote control battery discharged.
–

Remote control malfunction.
–


V
ehicle battery discharged.
–

V
ehicle in an area subject to strong
electromagnetic interference.
In the first case, change the remote control
battery.
In the second case, reinitialise
the remote
control.
Refer to the corresponding sections.


► Insert the key in the notch of the lock cover
and remove the lock cover .
►

Insert the key into the door lock.
►


T
urn the key towards the front or the rear to
unlock or lock the vehicle.
If the vehicle is fitted with an alarm, it will
not be activated when locking with the
key.
If the alarm is activated, the siren sounds
when the door is opened; switch on the
ignition to stop it.
Central locking not
functioning
Use these procedures in the following cases:
– Central locking malfunction.
–

Battery disconnected or discharged.
In the event of a malfunction of the
central locking system, the battery must
be disconnected to ensure that the vehicle is
locked fully.
Front left-hand door
► Insert the key into the lock and turn it towards
the front or rear of the vehicle to lock and unlock
the door
.
Other doors
Unlocking
► Pull the interior door opening control.
Locking

► Open the doors.
► For the rear doors, check that the child lock
is not on.
Refer to the corresponding section.
►

Gently insert the key into the latch located in
the door lock, then turn the latch an eighth of a
turn towards the outside of the door

.
►

Close the doors and check from the outside
that the vehicle is locked.
Changing the battery
A message is displayed on the instrument panel
when the battery needs changing. CarM an uals 2 .c o m

34
Access
The function may not work correctly with a
prosthetic leg.
In some circumstances, the tailgate may open or
close by itself, particularly when:
–
hitching up or removing a trailer
.
–

operating a towing device.
–


fitting or removing a bicycle carrier
.
–

loading
or unloading bicycles on/from a bicycle
carrier.
–

depositing or lifting something behind the
vehicle.
–


an animal approaches the rear bumper
.
–

washing the vehicle.
–


maintenance is performed on the vehicle.
–


accessing the spare wheel.
T

o avoid such operating problems, keep the
electronic key away from the recognition zone or
deactivate the hands-free function.
Towing device
The installation of a towing device may
disturb the detection system.
►

Perform the "kicking" movement on the
right side of the towing device.
Memorising an opening
position
To limit the opening angle of the motorised
tailgate:
►

move the tailgate to the desired position
manually or by pressing the button.
► press button C or the exterior control B for
more than 3 seconds (memorisation is confirmed
by a brief audible signal).
A new memorisation operation cancels the
previous one.
Memorising is not available until the
height of opening is more than or equal
to 1 metre between the low position and the
high position of the tailgate.
Manual operation
The tailgate can be manoeuvred by hand, even
with motorised operation activated.
The tailgate must be stationary.
►

Move the tailgate as slowly and smoothly as
possible.
When opening and closing the motorised tailgate
manually

, there is no assistance from gas struts.
Resistance to opening and closing is therefore
entirely normal.
In case of the motor overheating
Repeatedly opening and closing the
motorised tailgate can cause overheating of
its electric motor, after which opening and
closing will not be possible.
Allow at least 10
minutes for the electric
motor to cool down before operating the
tailgate again.
If you are unable to wait, operate it manually.
Manual closing of the
motorised tailgate in case of
failure
This operation is only necessary in the case of
failure or deinitialisation/loss of the tailgate
motor.
If the failure originates from the battery, it is
recommended to recharge it or change it with the
tailgate closed.
In this situation, a significant force may be
needed to close the tailgate.
►

Close it gently without slamming, as slowly as
possible, by pushing at the centre of the tailgate.
Do not lower the tailgate by pushing at
one of its sides - risk of damage!
Precautions in use
In wintry conditions
To avoid any operating problems, remove
the snow or wait until the ice melts before
requesting motorised opening of the tailgate.
When washing
When washing the vehicle in an
automatic car wash, do not forget to lock and
move away from the vehicle
to prevent any
risk of unwanted opening. CarM an uals 2 .c o m

93
Driving
6If there is still a problem, refer to the "Key
not detected - Back-up starting or Back-up
switch-off" section.
Starting

► Select mode P or N on the automatic
gearbox, then depress the brake pedal.
►

Press the "
START/STOP" button while
maintaining pressure on the pedal until the
engine starts.
In all circumstances, if one of the starting
conditions is not met, a message is displayed.
In some circumstances, a message indicates
that it is necessary to turn the steering wheel
while pressing the " START/STOP" button to
assist unlocking of the steering column.
Petrol engines
With Petrol engines, after a cold start,
pre-heating the catalytic converter can cause
noticeable engine vibrations, for anything up
to 2

minutes (accelerated idle speed).
Starting rechargeable hybrid
vehicles
► Fully depress the brake pedal and press
the START/STOP button for approximately 2
seconds.
► Keep you r foot on the pedal until this
indicator lamp comes on, indicating the
activation of the rechargeable hybrid system
(confirmed by an audible signal).
To exit Park mode, wait for the READY indicator lamp to come on.
By default, the system starts in Electric mode.
Depending on certain parameters (battery
charge level or outside temperature), the system
determines whether it is necessary to start the
petrol engine.
It is possible to change the driving mode at any
time using the mode selector.
When the vehicle starts in electric mode,
it makes no noise.
Pay particular attention to pedestrians and
cyclists who may not hear the vehicle coming
despite the pedestrian horn.
Switching off
► Deactivate cruise control alone or Drive
Assist Plus (depending on version).
►

Immobilise the vehicle using the parking
brake.
►


Select mode
P on the automatic gearbox.
► Press the "START/STOP" button.
► For rechargeable hybrid vehicles, before
leaving the vehicle, check that the READY

indicator lamp is switched off.
The automatic gearbox locks in mode P.
In some circumstances, it is necessary to turn
the steering wheel to lock the steering column.
If the vehicle is not immobilised, the
engine will not stop.
With the engine off, the braking and
steering assistance systems are also cut
off - risk of loss of control of the vehicle!
Never leave your vehicle with the
electronic key still inside.
Switching on the ignition
without starting the engine

CarM an uals 2 .c o m

103
Driving
6– With the selector in mode N and the brake
pedal released: with the selector at D or M.
–

With the selector in mode
P and the brake
pedal depressed: with the selector at R, N, D
or M.
–

With reverse gear engaged.
Special cases
The engine will restart automatically if the
conditions for operation are met again and in the
following cases:
–
Deselecting the Sport mode (depending on
equipment).
–


Automatic gearbox in mode N

, vehicle speed
exceeds 0.6 mph (1 km/h).
In these cases, this indicator lamp flashes
for a few seconds, then goes off.
Malfunctions
In the event of a fault with the system, this
warning lamp flashes for a few moments
on the instrument panel, then remains on,
accompanied by the display of a message.
Have it checked by a PEUGEOT dealer or a
qualified workshop.
The vehicle stalls in STOP mode
All of the instrument panel warning lamps come
on if there is a fault.
►

Switch off the ignition then start the engine
again with the key or the " ST

ART/STOP" button.
12 V battery
The Stop & Start system requires a
12 V battery of specific technology and
specification.
All work must be carried out only by a
PEUGEOT
dealer or a qualified workshop
Tyre under-inflation detection
This system alerts the driver if one or more tyres
suffer a drop in pressure.
The alert is raised when the vehicle is moving,
not when stationary.
It compares the information given by the wheel
speed sensors with reference values, which
must be reinitialised every time the tyre
pressures are adjusted or a wheel changed.
It takes into account the last values stored
during the reinitialisation request. It is therefore
essential that the tyre pressure is correct during
the operation. This operation is the driver’s
responsibility.
The tyre under-inflation detection cannot, in any circumstances, replace the need
for vigilance on the part of the driver.
This system does not avoid the need to
regularly check the tyre pressures (including
the spare wheel), especially before a long
journey.
Driving with under-inflated tyres, particularly
in adverse conditions (heavy load, high
speed, long journey):
–

worsens road-holding.
–


lengthens braking distances.
–


causes premature wear of the tyres.
–


increases energy consumption.
The inflation pressures defined for the vehicle can be found on the tyre pressure
label.
For more information on the Identification
markings, refer to the corresponding section.
Checking tyre pressures
This check should be done monthly
when the tyres are "cold" (vehicle stopped for
1 hour or after a journey of less than 6 miles
(10

km) at moderate speeds).
Otherwise, add 0.3 bar to the pressures
shown on the label.
Snow chains
The system does not have to be
reinitialised after fitting or removing snow
chains.
Under-inflation alert
This is signalled by the fixed illumination of this warning lamp, accompanied by an CarM an uals 2 .c o m

205
Vehicle data recording and privacy
11Vehicle data recording
and privacy
Electronic control units are installed in your
vehicle. These control units process data
received from the vehicle's sensors, for example,
or data they generate themselves or exchange
with each other. Some of these control units are
required for the correct operation of your vehicle,
some others assist you while driving (driving or
manoeuvring aids), while others provide comfort
or infotainment functions.
The following contains general information about
how data is processed within the vehicle.
You will find additional information about the
specific data which is downloaded, stored
and transmitted to third parties and what it is
used for in your vehicle under the keyword
"Data protection". This information is directly
associated with the references for the functions
in question contained in the corresponding
vehicle handbook, or in the general terms and
conditions of sale.
This information is also available online.
Vehicle operating data
The control units process the data used for the
operation of the vehicle.
This data includes, for example:
–
Information about the state of the vehicle
(e.g.

speed, travel time, lateral acceleration,
wheel rotation rate, fastened seat belts display). –

Environmental conditions (e.g.
temperature,
rain sensor, distance sensor).
As a general rule, this data is temporary, is
not stored for longer than one operating cycle
and is only used within the vehicle itself. The
control units often record this data (including the
vehicle's key). This function allows either the
temporary or permanent storage of information
about the state of the vehicle, stresses on
components, servicing requirements, as well as
events and technical errors.
Depending on the vehicle's equipment level, the
data stored is as follows:
–
Operating state of system components
(e.g.
filling level, tyre pressures, battery charge
status).
–
Faults and malfunctions in important system
components (e.g.
lamps, brakes).
–
System reactions in specific driving situations
(e.g.
deployment of an airbag, triggering of
stability control and braking systems).
–
Information about events which have
damaged the vehicle.
–

For electric and rechargeable hybrid vehicles,
the traction battery charge level and the
estimated driving range.
In particular circumstances (e.g.
if the vehicle
has detected a malfunction), it may be necessary
to record data which would otherwise simply not
be stored.
When taking your vehicle in for servicing
(e.g.
repairs, maintenance), the stored operating
data may be read along with the vehicle's identification number and used if necessary.
The personnel working for the servicing network
(e.g.
garages, manufacturers) or third parties
(e.g. roadside assistance agents) may read
the vehicle's data. This also applies to work
carried out under warranty and quality assurance
measures.
This data is generally read via the OBD
(On-Board Diagnostics) port fitted by law to
the vehicle. It is used to report on the technical
state of the vehicle or its components and
facilitates the diagnosis of malfunctions, in
compliance with warranty obligations and for
quality improvement. This data, in particular the
information relating to stress on components,
technical events, operator errors and other
malfunctions, is sent to the Manufacturer, if
necessary, along with the vehicle's identification
number. The Manufacturer's liability may also be
engaged. The Manufacturer may also use the
operating data taken from the vehicle for product
recalls. This data may also be used to check the
customer's warranty and any claims made under
warranty.
Any malfunctions stored in the vehicle may be
reset by an after-sales service company during
servicing or repair work, or at your request. CarM an uals 2 .c o m