PEUGEOT 408 2023 Manual Online
Manufacturer: PEUGEOT, Model Year: 2023, Model line: 408, Model: PEUGEOT 408 2023Pages: 244, PDF Size: 7.37 MB
Page 81 of 244

79
Safety
5Front seat belt not fastened alert
When the ignition is switched on, if the 
driver or front passenger has not fastened their 
seat belt, the corresponding warning lamp ( 1 or 
2) comes on in red. At a speed greater than 12 
mph (20
  km/h), the warning lamp flashes red, 
accompanied by an audible signal for around 2 
minutes. After this time has elapsed, the warning 
lamp remains on fixed in red until the seat belt is 
fastened.
Rear seat belt not fastened alert
When the ignition is switched on, if one of 
the rear passengers has not fastened their seat 
belt, the corresponding warning lamp ( 3, 4 or 5) 
comes on in red for 1 minute.
Seat belt unfastened alert
After the ignition is switched on, if the 
driver or a passenger unfastens their seat belt, 
the corresponding warning lamp ( 1, 2, 3, 4 or 
5) comes on in red. At a speed greater than 
12 mph (20
  km/h), the warning lamp flashes, 
accompanied by an audible signal for around 2 
minutes. After this time has elapsed, the warning 
lamp remains on until the seat belt has been 
fastened again.
With the ignition on, if the driver or a 
passenger fastens their seat belt, the 
corresponding warning lamp ( 1, 2, 3, 4 or 5) 
comes on in green on the display.
With the ignition on, if one of the front or 
rear passenger seats is detected as being 
unoccupied, the corresponding warning lamp ( 2, 
3, 4 or 5) comes on in grey on the display.
When there are no longer any not fastened/
unfastened alerts, the green or grey warning 
lamps remain on for around 30 seconds, then 
go off.
Advice
The driver must ensure that passengers  use the seat belts correctly and that they 
are all fastened before setting off.
Wherever seated in the vehicle, you must 
always fasten the seat belt, even for short 
journeys.
Do not invert the seat belt buckles, as they 
will not fulfil their role properly.
To ensure the proper functioning of the belt 
buckles, make sure that there are no foreign 
bodies present (e.g.
  a coin) before fastening.
Before and after use, ensure that the seat belt 
is reeled in correctly.
After folding or moving a seat or rear bench 
seat, ensure that the seat belt is positioned 
and reeled in correctly.
Installation
The lower part of the strap must be 
positioned as low as possible over the pelvis.
The upper part must be positioned in the 
hollow of the shoulder.
At the front, adjusting the position of the 
seat belt may require the seat height to be 
adjusted.
In order to be effective, a seat belt must:
– be tightened as close to the body as 
possible.
–
 
be pulled in front of you with a smooth 
movement, checking that it is not twisted.
–
 
must only be used to secure one person.
–
 
not show signs of tearing or fraying.
–
 
not be changed or modified, in order to 
avoid affecting its performance.
Recommendations for children
Use a suitable child seat if the passenger 
is less than 12 years old or shorter than 1.5 
metres.
Never use the same seat belt to secure more 
than one child.
Never carry a child on your lap.
For more information on  Child seats, refer to 
the corresponding section.
Maintenance
In accordance with current safety 
regulations, for all work on your vehicle's 
seat belts, contact a qualified workshop with 
the skills and equipment needed, which a 
PEUGEOT dealer is able to provide.
Have the seat belts checked regularly by a 
PEUGEOT dealer or a qualified workshop, 
particularly if the straps show signs of 
damage.
Clean the seat belt straps with soapy water or 
a textile cleaning product, sold by PEUGEOT 
dealers.  CarM an uals 2 .c o m  
Page 82 of 244

80
Safety
Airbags
General information
This system is designed to improve the safety 
of the occupants of the front seats and the rear 
outer seats in the event of a violent collision. The 
airbags supplement the action of the seat belts 
equipped with a force limiting system.
Electronic detectors record and analyse the 
front and side impacts sustained in the impact 
detection zones:
– 
In the event of violent impact, the airbags 
deploy instantly and help better protect the 
occupants of the vehicle; immediately after the 
impact, the airbags deflate rapidly in order not 
to hinder the visibility or the possible exit of the 
occupants.
–
 
In the event of a slight impact, a rear impact 
and under certain rollover conditions, the airbags 
may not deploy; only the seat belt helps to 
protect you in these situations.
The seriousness of the impact depends on the 
nature of the obstacle and the speed of the 
vehicle at the moment of collision.
The airbags do not operate when the 
ignition is switched off.
This equipment will only deploy once. If a 
second impact occurs (during the same or a 
* For more information on Deactivating the front passenger airbag, refer t\
o the corresponding section.
subsequent accident), the airbag will not be 
deployed again.
Impact detection zones
A. Front impact zone
B. Side impact zone
When one or more airbags are deployed, 
the detonation of the pyrotechnic charge 
incorporated in the system makes a noise and 
releases a small quantity of smoke.
This smoke is not harmful, but sensitive 
individuals may experience irritation.
The detonation noise associated with the 
deployment of one or more airbags may result 
in a slight loss of hearing for a short time.
Front airbags 
 
This system protects the driver and front 
passenger in the event of a serious front impact, 
limiting the risk of head and chest injury.
The driver's airbag is fitted in the centre of the 
steering wheel; the front passenger airbag is 
fitted in the dashboard above the glove box.
Deployment
They deploy, except the front passenger airbag 
if it is deactivated*, in the event of a serious front 
impact to all or part of the front impact zone A.
The front airbag inflates between the thorax and 
head of the front occupant of the vehicle and the 
steering wheel, driver's side, and the dashboard, 
passenger's side, to cushion their forward 
movement.  CarM an uals 2 .c o m  
Page 83 of 244

81
Safety
5Lateral airbags 
 
This system protects the driver and front 
passenger in the event of a serious side impact, 
limiting the risk of injury to the chest, between 
the hip and the shoulder. 
Each lateral airbag is fitted in the seat backrest 
frame, on the door side.
Deployment
The lateral airbags are deployed on one side in 
the event of a serious side impact applied to all 
or part of the side impact zone B.
The lateral airbag inflates between the chest of 
the vehicle's occupant and the corresponding 
door panel.
Curtain airbags
This system helps provide greater protection for 
the driver and passengers (with the exception 
of the rear centre passenger) in the event of a 
serious side impact, in order to limit the risk of 
injury to the side of the head.
Each curtain airbag is built into the pillars and 
the upper passenger compartment area.
Deployment
It deploys simultaneously with the corresponding 
lateral airbag in the event of a serious side 
impact applied to all or part of the side impact 
zone B.
The curtain airbag inflates between the front 
and rear occupants of the vehicle and the 
corresponding windows.
Malfunction
In the event of a malfunction, 
these warning lamps light up on 
the instrument panel. Contact a PEUGEOT 
dealer or a qualified workshop to have the 
system checked.
The airbags may not be deployed in the event of 
a serious impact.
In the event of a minor impact or bump at 
the side of the vehicle or if the vehicle 
rolls over, the airbags may not be deployed.
In the event of a rear or front collision, none of 
the lateral airbags are deployed.
Advice
For the airbags to be fully effective, 
observe the safety recommendations 
below.
Adopt a normal and upright sitting position.
Fasten your seat belt and position it correctly.
Do not place anything between the occupants 
and the airbags (e.g.
  child, animal, object), do 
not fix or attach anything near or in the path of 
the airbags, as this could cause injuries when 
they are deployed.
Never modify the original definition of the 
vehicle, particularly in the area directly around 
the airbags.
Even if all of the precautions mentioned are 
observed, a risk of injury or of minor burns to 
the head, chest or arms cannot be ruled out 
when an airbag is deployed. The bag inflates 
almost instantly (within a few milliseconds) 
then deflates within the same time, 
discharging the hot gas via openings provided 
for this purpose.
After an accident or if the vehicle has been 
stolen, have the airbag systems checked.
All work must be carried out only by a 
PEUGEOT dealer or a qualified workshop
Front airbags
Do not drive holding the steering wheel 
by its spokes or resting your hands on the 
centre part of the wheel.  CarM an uals 2 .c o m  
Page 84 of 244

82
Safety
Passengers must not place their feet on the 
dashboard.
Do not smoke as deployment of the airbags 
can cause burns or the risk of injury from a 
cigarette or pipe.
Never remove or pierce the steering wheel or 
hit it violently.
Do not fix or attach anything to the steering 
wheel or dashboard, as this could cause 
injuries when the airbags are deployed.
Lateral airbags
Use only approved seat covers 
compatible with the deployment of these 
airbags. For information on the range of seat 
covers suitable for your vehicle, contact a 
PEUGEOT dealer.
Do not fix or attach anything to the seat 
backrests (e.g.
  clothing) as this could cause 
injuries to the chest or arm when the airbag is 
deployed.
Do not sit with the upper part of the body any 
nearer to the door than necessary.
The vehicle's front door panels include side 
impact sensors.
A damaged door or any unauthorised or 
incorrectly executed work (modification or 
repair) on the front doors or their interior trim 
could compromise the operation of these 
sensors - risk of malfunction of the lateral 
airbags!
All work must be carried out only by a 
PEUGEOT dealer or a qualified workshop
Curtain airbags
Do not fix or attach anything to the roof, 
as this could cause head injuries when the 
curtain airbag is deployed.
Do not remove the grab handles installed on 
the roof.
Active bonnet 
 
The active bonnet has been designed to 
optimise the safety of pedestrians in the event of 
collision with the front of the vehicle.
The pyrotechnic system is triggered at the 
hinges of the bonnet to lift it, when the sensors 
located at the front of the vehicle detect a 
collision.
Deployment of the active bonnet is 
accompanied by a slight discharge of 
harmless smoke and a noise, due to the 
activation of the pyrotechnic cartridge 
incorporated in the system. The airbag 
warning lamp comes on.
After triggering, do not try to open or close 
the bonnet. Call a towing company or go to 
the nearest PEUGEOT dealer or qualified 
workshop, driving at a speed below 19 mph 
(30
  km/h).
Make sure that you adjust the height of the 
driver's seat - risk of hindrance to visibility!
This equipment will only trigger once. If a  second impact occurs (during the same 
or a subsequent accident), the active bonnet 
will not trigger.
After an accident or if the vehicle has been 
stolen, have the system checked.
Do not tamper with the pyrotechnic systems 
under the bonnet, close to the struts - risk of 
explosion!
All work must be carried out only by a 
PEUGEOT dealer or a qualified workshop
Malfunction
In the event of a malfunction, this warning 
lamp lights up on the instrument panel, 
accompanied by the display of a message and 
an audible signal. You must contact a PEUGEOT 
dealer or a qualified workshop to have the 
system checked.
The active bonnet may not deploy in the event of 
an impact.  CarM an uals 2 .c o m  
Page 85 of 244

83
Safety
5Child seats
The regulations on carrying children are specific to each country. Refer to the 
legislation in force in your country.
For maximum safety, please observe the 
following recommendations:
–
 
In accordance with European regulations, 
all children under the age of 12 or less than 
1.5 metres tall must travel in approved child 
seats suited to their weight , on seats fitted with 
a seat belt or ISOFIX mountings.
–
 
Statistically
 , the safest seats in your 
vehicle for carrying children are the rear 
seats.
–
 
Children weighing less than 9 kg must 
travel in the "rearward facing" position, 
whether in the front or rear of the vehicle.
It is recommended that children travel 
on the rear seats  of the vehicle:
–
 
"rearward facing" up to the age of 3.
–
 
"forward facing" over the age of 3.
Make sure that the seat belt is correctly 
positioned and tightened.
For child seats with a support leg, ensure that 
the support leg is in firm and steady contact 
with the floor.
An incorrectly installed child seat in a  vehicle compromises the child's safety in 
the event of an accident.
Ensure that there is no seat belt or seat belt 
buckle under the child seat, as this could 
destabilise it.
Remember to fasten the seat belts or the 
child seat harness keeping the slack relative 
to the child's body to a minimum, even for 
short journeys.
When installing a child seat using the seat 
belt, ensure that the seat belt is tightened 
correctly on the child seat and that it secures 
the child seat firmly on the vehicle seat. If 
the passenger seat is adjustable, move it 
forwards if necessary.
Remove the head restraint before 
installing a child seat with a backrest on a 
passenger seat.
Ensure that the head restraint is stored or 
attached securely to prevent it from being 
thrown around the vehicle in the event of 
sharp braking. Refit the head restraint once 
the child seat has been removed.
Installing a booster seat
The chest part of the seat belt must be 
positioned on the child's shoulder without 
touching the neck.
Ensure that the lap part of the seat belt 
passes correctly over the child's thighs.
Use a booster seat with a backrest, equipped 
with a belt guide at shoulder level.
Additional protections
To prevent accidental opening of the 
doors and rear windows, use the "Child lock".
Take care not to open the rear windows by 
more than one third.
To protect young children from the sun's rays, 
fit side blinds on the rear windows.
As a safety measure, do not leave:
–
 
A
 child alone and unsupervised inside a 
vehicle.
–
 
A
 child or an animal in a vehicle which is 
exposed to the sun, with the windows closed.
–
 
The keys within reach of children inside the 
vehicle.
Child seat at the rear
Forward-facing or rearward-facing 
 
 
 
► Move the vehicle's front seat forward and 
straighten the backrest so that the legs of the 
child in the forward-facing or rearward-facing 
child seat itself do not touch the vehicle's front 
seat.  CarM an uals 2 .c o m  
Page 86 of 244

84
Safety
► Check that the backrest of the forward-facing 
child seat is as close as possible to the backrest 
of the vehicle's rear seat, and ideally in contact 
with it.
Centre rear seat
A child seat with a support leg must never be 
installed on the  centre rear passenger seat .
Child seat at the front 
 
► Adjust the front passenger seat to the 
highest  and fully back longitudinal position , 
with the backrest straightened.
"Forward facing" 
 
You must leave the front passenger  airbag active.
"Rearward facing" 
 
The front passenger airbag must be deactivated before installing a rearward 
facing child seat. Otherwise,  the child risks 
being seriously injured or killed if the 
airbag is deployed .
 
 
Warning label - Front passenger airbag 
 
You must comply with the following instruction, 
as reminded by the warning label on both sides 
of the passenger sun visor:
NEVER use a rearward facing child restraint 
on a seat protected by an ACTIVE AIRBAG in 
front of it, DEATH or SERIOUS INJURY to the  CHILD can occur.
Deactivating the front 
passenger airbag
 
 
Passenger airbag OFF
To ensure the safety of the child, the front passenger airbag MUST be deactivated 
when a "rearward facing" child seat is 
installed on the front passenger seat. 
Otherwise, the child risks being seriously 
injured or killed in the event of deployment of 
the
 
airbag.  CarM an uals 2 .c o m  
Page 87 of 244

85
Safety
5Vehicles not equipped with a 
deactivation/reactivation control
Installing a "rearward
  facing" child seat on 
the front passenger seat is strictly prohibited 
- risk of death or serious injury in the event of 
airbag deployment!
Deactivating/Reactivating the front 
passenger airbag
For vehicles on which it is fitted, the switch is 
located on the side of the dashboard.
 
 
With the ignition off:
►  T o deactivate the airbag, turn the key in the 
switch to the "OFF " position. 
►
 
T
 o reactivate it, turn the key to the "ON" 
position.
When the ignition is switched on:
This warning lamp comes on and remains  lit to signal deactivation.
Or
This warning lamp comes on for about  1   minute to signal activation.
Recommended child seats
Range of child seats secured using a  three-
point seat belt .
Group 0+: from birth to 13 kg 
 
L1
"RÖMER Baby-Safe"
Installed in the "rearward facing" position.
Groups 2 and 3: from 15 to 36 kg 
 
L5
"RÖMER KIDFIX 2R"
Can be fitted to the vehicle's ISOFIX  mountings.
The child is restrained by the seat belt.
Only suitable for installation on the side rear  seats.
The head restraint on the vehicle seat must  be removed.
Groups 2 and 3: from 15 to 36 kg 
 
L6
"GRACO Booster"
The child is restrained by the seat belt.
Only suitable for installation on the front 
passenger seat or on the rear side seats.
"ISOFIX" mountings
The seats shown below are fitted with ISOFIX 
compliant mountings:
 
 
The mountings comprise three rings for each 
seat, indicated by a marking:
–
 
T
 wo rings   A, located between the vehicle seat 
backrest and cushion.
   CarM an uals 2 .c o m  
Page 88 of 244

86
Safety
 
These rings are located behind zips.
The 2  latches on ISOFIX child seats  are 
secured to them.
–
 
One ring
   B, located behind the seat, called the 
TOP TETHER, for attaching seats fitted with an 
upper strap.
 
 
This system prevents the child seat from tipping 
forwards in the event of a front impact.
This ISOFIX mounting system provides fast, 
reliable and safe fitting of the child seat in the 
vehicle.
To secure the child seat to the TOP TETHER:
►
 
Remove and stow the head restraint before 
installing the child seat on this seat (refit it once 
the child seat has been removed).
► Pass the strap of the child seat behind the 
seat backrest, centring it between the openings 
for the head restraint rods.
►
 
Secure the upper strap hook to ring
  
B
 .
►
 
T
 ighten the upper strap.
When fitting an ISOFIX child seat to the 
left-hand rear seat of the bench seat, 
before fitting the seat, first move the centre 
rear seat belt towards the middle of the 
vehicle, so as to avoid the seat interfering 
with the operation of the seat belt.
An incorrectly installed child seat in a  vehicle compromises the child's safety in 
the event of an accident.
Strictly observe the fitting instructions 
provided in the user guide supplied with the 
child seat.
For information about the options for 
fitting ISOFIX child seats in your vehicle, 
refer to the summary table.
Recommended ISOFIX child seats
Also consult the user guide from the child  seat’s manufacturer to find out how to 
install and remove the seat.
"RÖMER Baby-Safe and its ISOFIX base" (size category: E)
Group 0+: from birth to 13 kg
 
 
Installed "rearward facing" using an ISOFIX  base which is attached to rings  A .
The base has a support leg, height-
adjustable, which rests on the vehicle's floor. This child seat can also be secured with a 
seat belt. In this case, only the shell is used  and attached to the vehicle seat using the  three-point seat belt.
"RÖMER Duo Plus ISOFIX "
(size category: B1)
Group 1: from 9 to 18 kg
 
   CarM an uals 2 .c o m  
Page 89 of 244

87
Safety
5"RÖMER Duo Plus ISOFIX"
(size category: B1)
Group 1: from 9 to 18 kg
Suitable for forward-facing installation only.
Attached to rings
  A and ring   B, referred to as 
TOP TETHER, using an upper strap.
Three seat body angles: sitting, reclining,  lying down.
This child seat can also be used in seat  positions not equipped with ISOFIX 
mountings. In this case, it must be secured to  the vehicle's seat by the three-point seat belt. Adjust the front seat of the vehicle so that the  child's feet do not touch the backrest.
i-Size child seats
i-Size child seats have two latches that are anchored to the two rings  A.
These i-Size child seats also have:
–
 
either an upper strap that is attached to ring  B
.
–
 
or a support leg that rests on the vehicle floor
 , compatible with the approved i-Size seat position.
Their role is to prevent the child seat from tipping forward in the even\
t of a collision.
For more information on the  ISOFIX mountings, refer to the corresponding section.  CarM an uals 2 .c o m  
Page 90 of 244

88
Safety
Installing universal, ISOFIX and i-Size child seats
In compliance with European regulations, this table indicates the option\
s for installing child seats secured using the seat belt and universally\
 approved (a) 
as well as the largest  ISOFIX and i-Size child seats for the seat positions fitted with  ISOFIX anchorage points in the vehicle.
Seat number
Front seats (d) Rear seats
(d)
 
 
1 3456
 
 
3 1456
Front passenger airbag Deactivated "OFF" 
(b) Activated "ON" (c)
Position compatible with a  universal (a) 
child seat no
yes (f) (i) yes (f) (j)yes yes (e) yes
Position compatible with an  i-Size child 
seat no
noyesnoyes
Position equipped with a  Top Tether hook no noyesnoyes
"Carrycot " type child seat nonononono
"Rearward facing"  ISOFIX child seat nono noR3 (g) (h) no R3 (g) (h)
"Forward facing"  ISOFIX child seat no noF3noF3
Child booster seat noB3 B3noB3
Rules: –
 
A
  position that is i-Size compatible is also 
compatible with  R1, R2 and F2X, F2, B2. –
 
A
  position that is R3 compatible is also 
compatible with  R1 and R2.  CarM an uals 2 .c o m