2014-2022 Peugeot 108 4 Door Driving -> Active City Brake User Manual
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Driving -> Active City Brake for Your Peugeot 108 4 Door 2014-2022

Driving  
Have it checked by a PEUGEOT dealer or  
a qualified workshop.  
Temporarily exceeding the  
speed setting  
F Press firmly on the accelerator pedal,  
going beyond the point of resistance, to  
exceed the programmed speed limit.  
Never look at the laser sensor through  
an optical instrument (magnifying glass,  
microscope…) at a distance of less than  
10 centimetres: risk of eye injury.  
The use of mats not approved by  
PEUGEOT may interfere with the  
operation of the speed limiter.  
The speed limiter is deactivated temporarily  
and the displayed programmed speed flashes.  
To avoid any risk of jamming of the pedals:  
-
-
ensure that mats are secured correctly,  
never place one mat on top of another.  
Principle  
An audible signal accompanies the  
flashing of the programmed speed when  
exceeding the speed is not due to an  
action by the driver (steep hill…).  
Active City Brake  
Active City Brake is a driving assistance  
system that aims to avoid a frontal collision or  
to reduce the speed of an impact if the driver  
does not react or reacts too late (brake applied  
too late).  
As soon as the vehicle's speed returns to the  
programmed value, the limiter operates again:  
the display of the programmed speed becomes  
steady again.  
Using a laser sensor and a camera located at  
the top of the windscreen, this system detects  
a vehicle moving in the same direction or  
stationary ahead of your vehicle.  
When necessary, the vehicle's braking system  
is operated automatically to reduce the speed  
of impact or to help avoid a collision with the  
vehicle ahead.  
This system has been designed to improve driving  
safety.  
Switching off  
F Press the end of the control: the display of  
It remains the driver's responsibility to continuously  
monitor the state of the traffic and to assess the  
distances and relative speeds of other vehicles.  
Active City Brake cannot in any circumstances  
replace the need for vigilance on the part of the  
driver.  
information on the speed limiter disappears.  
Automatic braking occurs later than if  
done by the driver, so as to intervene only  
when there is a high risk of collision.  
Operating fault  
If this warning lamp comes on in  
the instrument panel it signals  
a malfunction of the limiter.  
86  
Driving  
Unless the driver de-clutches quickly  
Conditions of activation  
Operation  
enough during automatic braking,  
triggering of the system may cause the  
engine to stall.  
Active City Brake functions if the following  
conditions are met:  
Three functional stages are possible:  
Pre-collision warning: if risk of a collision  
with a vehicle is detected, a warning lamp  
comes on, accompanied by an audible  
signal, to warn the driver to take avoiding  
action. The triggering thresholds of the  
warning can be set.  
The engine is running.  
The vehicle is moving forward.  
For triggering the pre-collision warning:  
-
the speed is between 9 and 87 mph  
(15 and 140 km/h),  
-
the difference in speed between your  
vehicle and the one in front is more than  
about 9 mph (15 km/h).  
Braking assistance: increases the braking  
started by the driver, but only if a risk of  
collision is detected.  
For help in braking:  
-
Automatic pre-collision braking: if  
your vehicle is approaching the vehicle  
in front of you too quickly, the system  
will automatically engage the brakes to  
reduce the speed of impact. The collision  
can be automatically avoided if the speed  
difference between your vehicle and the  
one in front of you is not more than 18 mph  
(30 km/h).  
the speed is between about 19 and  
50 mph (30 and 80 km/h),  
the difference in speed between your  
vehicle and the one in front is more than  
about 19 mph (30 km/h).  
-
For automatic pre-collision braking:  
-
the speed is between about 6 and  
50 mph (10 and 80 km/h),  
6
-
the difference in speed between your  
vehicle and the one in front is more than  
about 6 mph (10 km/h)  
Then you are alerted by the display  
of this warning indicator in the  
instrument panel, accompanied by  
an audible signal.  
the braking assistance systems (ABS,  
EBFD, EBA) are not faulty.  
The trajectory control systems (TRC, DSC)  
hare not deactivated or faulty.  
The vehicle is not making a sharp turn.  
The system has not triggered in the last ten  
seconds.  
The brake lamps of your vehicle are lit to warn  
other users.  
The automatic braking can lead to the complete  
stop of the vehicle if the situation requires.  
87  
Driving  
Press this button again to reactivate the  
system.  
Setting the thresholds for  
triggering the alert  
This indicator lamp lights up on the  
instrument panel.  
The system is reactivated automatically at  
every new start using the key or the "START/  
STOP" button.  
Operating limits  
The system only detects vehicles (cars,  
trucks), stationary or moving in the same  
direction of traffic.  
The alert thresholds determine how you want  
to be alerted to the risk of an imminent collision  
with the vehicle travelling in front of you.  
You can choose from three thresholds:  
Deactivation/reactivation  
It does not detect small vehicles (bicycles,  
motorcycles), pedestrians or animals, nor  
non-reflective stationary objects.  
A. "Distant", to be given an early alert  
This system will not trigger or intervene if the  
driver:  
(cautious driving).  
B. "Normal",  
-
presses hard on the accelerator (even if the  
speed limiter is active),  
C. "Close", to be given a later alert (sporty  
driving).  
Press this button for more than 3 seconds.  
-
or suddenly turns the steering wheel  
(avoidance manoeuvre).  
This warning lamp comes on in the  
instrument panel and the message  
"PCS OFF" is displayed.  
The ability to detect is reduced if:  
Press this button in succession to  
scroll through the thresholds:  
The default setting is "Normal".  
-
you are driving in an environment with sharp  
turns and/or roads in poor condition,  
carrying an excessively heavy load which  
badly affects the horizontal attitude of your  
vehicle,  
-
-
your vehicle skids.  
88  
Driving  
-
passing a vehicle travelling in the other  
direction, at a crossroads, when your  
vehicle is turning left or right,  
if the vehicle in front of you kicks up water or  
snow,  
if your vehicle stops very close to an  
overhanging wall or other vehicles,  
when your vehicle quickly draws close to  
a vehicle in front,  
if the vehicle is raised or lowered,  
if the vehicle is passing through a plastic  
curtain,  
if you are driving in fog or smoke,  
if the sensor is misaligned (replacement  
after a collision).  
When weather conditions are difficult  
(extremely heavy rain, snow, fog, hail,  
etc.), braking distances increase, which  
may reduce the system's ability to avoid  
a collision.  
Do not stick or otherwise attach any object  
on the windscreen in front of the sensor.  
-
-
-
System fault  
The driver must therefore remain  
particularly cautious.  
If there is a system fault, you are  
alerted by the flashing of this  
warning lamp in the instrument  
panel.  
-
-
Never let snow build up on the bonnet  
or any object above the bonnet nor at  
the front of the roof: this could enter the  
field of vision of the sensor and obstruct  
detection.  
Have the system checked by a PEUGEOT  
dealer or a qualified workshop.  
-
-
In the event of an impact to the  
windscreen at the sensor, deactivate the  
system and contact a PEUGEOT dealer  
or a qualified workshop to have your  
windscreen replaced.  
Unwanted triggering  
Operating faults  
The system may detect a risk of imminent  
collision, particularly in the following conditions:  
Sensor fault  
6
-
-
detection of an object close to the edge of  
the road going into a bend (safety rail, street  
light, road sign),  
detection of a structure at the top or bottom  
of a sharp slope (advertising hoarding,  
public lighting),  
Do not attempt to remove, adjust or test  
the sensor.  
Only a PEUGEOT dealer or a qualified  
workshop is able to work on the system.  
Operation of the laser sensor may be  
disrupted by accumulation of dirt, formation  
of condensation on the windscreen or  
the presence of a component causing an  
obstruction (e.g. an open bonnet).  
-
-
-
detection of reflective objects (central  
reservation, etc.) on the road,  
detection of the top bar of a bridge or  
a signal gantry,  
passing a vehicle travelling in the other  
direction in a corner,  
If this happens, you are alerted by  
the flashing of this warning lamp in  
the instrument panel.  
Use windscreen demisting and regularly clean  
the area of the windscreen in front of the  
sensor.  
89  

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