PEUGEOT 408 2023 Owners Manual
Manufacturer: PEUGEOT, Model Year: 2023, Model line: 408, Model: PEUGEOT 408 2023Pages: 244, PDF Size: 7.37 MB
Page 111 of 244

109
Driving
6or
Direct access to the Shortcuts for driving aids.
Information displayed on 
the instrument panel
 
 
1.Detected speed limit indication
or
2. End of speed limit indication
 
 
The system is active but is not detecting speed 
limit information.
 
 
On detecting speed limit information, the system 
displays the value.
 
 
For a suggested maximum speed, the first time 
that the vehicle exceeds it  by more than 3 mph 
(5
  km/h) (e.g. 59 mph (95   km/h)), the speed is displayed and flashes for 10 seconds (depending 
on version).
Operating limits
The system does not take account of reduced 
speed limits, especially those imposed in the 
following cases:
–
 
Atmospheric pollution.
–
  Towing.
–
 
Driving with a space-saver type spare wheel 
or snow chains fitted.
–
 
T
 yre repaired using the temporary puncture 
repair kit.
–
 
Y
 oung drivers.
The system may not display the speed limit if it 
does not detect a speed limit sign within a preset 
period and in the following situations:
–
 
Road signs that are obstructed, non-standard, 
damaged or bent.
–
 
Obsolete or incorrect maps.
Speed setting 
recommendations
The driver can select the speed displayed by the 
Road signs recognition  system as the speed 
setting for the speed limiter, cruise control or 
adaptive cruise control using the  OK button.
If rain is detected, the system proposes a speed 
setting to the driver which is lower than the 
speed read/sent from the mapping system in 
order to adapt to the weather conditions (e.g.
  on 
motorways, the proposed speed is 68 mph (110 
km/h) instead of 81 mph (130 km/h).
For more information on the Speed 
limiter, Cruise control or Adaptive 
cruise control, refer to the corresponding 
sections.
Speed setting advance recommendations
With Drive Assist 2.0 activated, the system 
detects the next speed limit sign, displays it in 
the background and proposes this new speed as 
the speed setting.
Once memorised:
–
 
If the speed setting is lower than the previous 
one, the vehicle slows down to reach this new 
speed when it gets to the sign.
–
 
If the speed setting is higher than the previous 
one, the vehicle speeds up to reach this new 
speed when it passes the sign.  CarM an uals 2 .c o m  
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11 0
Driving
Steering-mounted controls 
 
 
 
1. Select speed limiter mode
2. Select cruise control mode
3. Memorise the speed setting
Information displayed on the 
instrument panel
 
 
 
 
Without speed setting advance 
recommendations
 
 
With speed setting advance 
recommendations
4. Current speed setting
5. Speed memorisation prompt
6. Current speed limit indication
7. Next speed limit indication
Operating conditions
– Eligible roads: roads with separate 
carriageways with prohibited access for 
pedestrians and cyclists.
–
 
Drive 
 Assist 2.0 activated.
–
 
V
 ehicle speed between 0 and 112 mph (0 and 
180 km/h).
–
 
Steering wheel properly held by the driver
 .
Memorising the speed setting
► Switch on the speed limiter 1-LIMIT  or cruise 
control 2.
Information related to the speed limiter or cruise 
control is displayed.
When a new speed setting is detected, the 
system displays the value and “ OK?" to suggest 
saving it as a new speed setting.
If there is a difference of less than 3 mph 
(5   km/h) between the speed setting and 
the speed displayed by the Road signs 
recognition, the " OK?“ symbol is not 
displayed.
Depending on the road conditions, several 
speeds may be displayed.
►
 
Press 
 3-OK to confirm the new speed setting.
The display then reverts to its previous state.
Extended Traffic Sign 
Recognition
For more information, refer to the 
General recommendations on the use 
of driving and manoeuvring aids .
 
 
This additional system recognises these road 
signs and displays them on the instrument panel.  CarM an uals 2 .c o m  
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111
Driving
6As you approach it, the symbol of the 
corresponding sign is displayed on the 
instrument panel.
The selected display mode must be "Driving".
The actual road signs always take priority 
over those displayed by the system.
The signs must comply with the Vienna 
Convention on road signs.
Activation/Deactivation
It is configured in the ADAS touch screen 
application.
Speed limiter
For more information, refer to the 
General recommendations on the use 
of driving and manoeuvring aids .
This system prevents the vehicle from 
exceeding the speed programmed by the 
driver (speed setting).
The speed limiter is switched on manually.
The minimum speed setting is 19 mph (30
  km/h).
The speed setting remains in the system 
memory when the ignition is switched off.
Steering-mounted controls 
 
 
 
1. Speed limiter selection
2. Switch on/pause the speed limiter at the 
previously saved speed setting
3. Increase/Decrease the speed setting
4. Activate the speed limiter at the previously 
saved speed setting
Use the speed suggested by the Road signs 
recognition function
For more information on the  Road signs 
recognition
 
function, refer to the corresponding 
section.
Information displayed on 
the instrument panel
 
 
5. Speed limiter mode selection indication
6. Speed limiter on (green)/pause (grey) 
indication
7. Speed setting value
8. Speed suggested by the Road signs 
recognition function (depending on version)
Switching on/Pausing
► Press  1-LIMIT to select the speed limiter 
mode; the function is paused (grey).
►
 
If the limit speed setting is suitable (most 
recent speed setting programmed in the system), 
press
  2-I I> or 4-OK to switch the speed limiter 
on (green).
►
 
Pressing 
 2-I I>   again temporarily pauses the 
function.  CarM an uals 2 .c o m  
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11 2
Driving
When the speed setting remains below 
the vehicle's speed for a prolonged 
period of time, an audible warning is emitted.
Adjusting the speed setting
You do not have to switch the speed limiter on in 
order to set the speed.
To change the speed setting using the vehicle’s 
current speed:
►
 
For steps of +/- 1 mph (1 km/h), make 
successive short presses upwards/downwards 
on 
3 to increase/decrease.
►
 
For steps of +/- 5 mph (5
   km/h), press and 
hold upwards/downwards on  3 to increase/
decrease.
When the function is activated, the limit 
speed value can be changed using the speed 
suggested by the Road signs recognition 
function displayed on the instrument panel:
–
 
When passing the sign:
►
 
Press 
 4-OK to save the suggested speed. 
This value is then immediately shown as the new 
speed setting on the instrument panel.
–
 
After passing the sign:
►
 
Press 
 4-OK. The message "OK?" is 
displayed to confirm the request to save.
►
 
Press 
 4-OK again to save the suggested 
speed. The new speed setting value is displayed 
on the instrument panel.
Temporarily exceeding the 
speed setting
► Fully depress the accelerator pedal.
The speed limiter is temporarily deactivated and 
the displayed speed setting flashes.
►
 
Release the accelerator pedal to return to 
below the speed setting.
When exceeding the speed is not due to the 
driver's action (e.g.
  in case of a steep slope), an 
audible signal is triggered immediately.
On a steep descent or in the event of 
sharp acceleration, the speed limiter will 
not be able to prevent the vehicle from 
exceeding the speed setting.
If necessary, apply the brakes to control your 
vehicle’s speed.
When the vehicle speed returns to the speed 
setting level, the speed limiter operates again: 
the speed setting display becomes fixed again.
Off
► Press  1-LIMIT: the speed limiter information 
display disappears.
Malfunction
In the event of a malfunction, dashes are 
displayed flashing and then fixed (orange) 
instead of the speed setting.
Have it checked by a PEUGEOT dealer or a 
qualified workshop.
Cruise control -  Specific 
recommendations
The cruise control function does not 
guarantee compliance with the maximum 
authorised speed and the safety distance 
between vehicles, the driver remains 
responsible for their driving.
In the interest of public safety, only use cruise 
control if the traffic conditions enable vehicles 
to drive at a steady speed and maintain an 
adequate safety distance.
Remain vigilant while cruise control is 
activated. If you press and hold one of the 
speed setting modification buttons, your 
vehicle may change speed very abruptly.
When descending a steep hill , the cruise 
control system cannot prevent the vehicle 
from exceeding the set speed. Brake if 
necessary to control the vehicle speed.
On steep climbs or when towing, the set 
speed may not be reached or maintained.
Exceeding the programmed speed 
setting
You can temporarily exceed the speed 
setting by pressing the accelerator pedal (the 
programmed speed flashes).
To return to the speed setting, release the 
accelerator pedal (when the set speed is 
reached again, the displayed speed stops 
flashing).  CarM an uals 2 .c o m  
Page 115 of 244

11 3
Driving
6Operating limits
Never use the system in the following 
situations:
–
 
In an urban area with the risk of 
pedestrians crossing the road.
–
 
In heavy traffic (except versions with the 
Stop
  &   Go function).
–
 
On winding or steep roads.
–
 
On slippery or flooded roads.
–
 
In poor weather conditions.
–
 
In the event of restricted visibility for the 
driver
.
–
 
Driving on a speed circuit.
–
 
Driving on a rolling road.
–
 
When using a ‘space-saver
 ’ type spare 
wheel.
–
 
When using snow chains or non-slip 
covers.
Cruise control
For more information, refer to the 
General recommendations on the use 
of driving and manoeuvring aids  and the 
Specific recommendations on cruise 
control.
This system automatically maintains the  vehicle’s speed at the value programmed 
by the driver (speed setting), without the use of 
the accelerator pedal.
Cruise control is switched on manually.
It requires a minimum vehicle speed of 25 mph 
(40   km/h).
The mode
  D or second gear or higher in mode  
M
  
of the automatic gearbox must be engaged.
Cruise control remains active after 
changing gear on engines fitted with the 
Stop & Start function.
Switching off the ignition cancels any 
speed setting.
Steering-mounted controls 
 
 
 
1. Cruise control selection
2. Switch on/pause cruise control at the 
previously saved speed setting 3.
Increase/Decrease the speed setting (if 
cruise control activated)
Activation of cruise control in progress (if 
cruise control deactivated)
4. Activation of cruise control in progress
Use the speed suggested by the Road signs 
recognition
For more information on the  Road signs 
recognition
 
 function, refer to the corresponding 
section.
Information displayed on 
the instrument panel
 
 
5. Cruise control mode selection indication
6. Cruise control on (green)/pause (grey) 
indication
7. Speed setting value  CarM an uals 2 .c o m  
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11 4
Driving
8.Speed suggested by the Road signs 
recognition function (depending on version)
Switching on/pausing
► Press button  1 to select the cruise control 
mode; the function is paused (grey).
►
 
Press 
 3 upwards/downwards, or press  4-OK 
to activate the cruise control and save a speed 
setting as soon as the vehicle speed reaches the 
desired level (green).
►
 
Pressing button  2-I I>
  temporarily pauses the 
function.
►
 
Pressing 
 2-I I>, 3 or 4-OK again will 
reactivate cruise control (green).
Cruise control operation is also 
temporarily interrupted (pause):
–
 
by pressing the brake pedal.
–
 
automatically
 , if the electronic stability 
control (ESC) system is triggered.
–
 
by shifting to neutral or engaging reverse 
gear
.
–
 
by using the electric parking brake.
Modifying the speed setting
The cruise control must be active.
To change the speed setting using the vehicle’s 
current speed:
►  
For steps of +/- 1 mph (1 km/h), 
make successive short presses upwards/
downwards
  on 3 to increase/decrease.
► For steps of +/- 5 mph (5   km/h), press and 
hold upwards/downwards on  3 to increase/
decrease.
Prolonged pressing and holding 
upwards/downwards on  3 causes a very 
rapid change in vehicle speed.
As a precaution, we recommend setting  a cruise speed fairly close to the current 
speed of your vehicle, to avoid any sudden 
acceleration or deceleration of the vehicle.
When the function is activated, the speed 
setting value can be changed using the speed 
suggested by the Road signs recognition 
function displayed on the instrument panel:
–
 
When passing the sign:
►
 
Press 
 4-OK to save the suggested speed. 
This value is then immediately shown as the new 
speed setting on the instrument panel.
–
 
After passing the sign:
►
 
Press 
 4-OK. The message "OK?" is 
displayed to confirm the request to save.
►
 
Press 
 4-OK again to save the suggested 
speed. The new speed setting value is displayed 
on the instrument panel.
Off
► Press  1: the cruise control information display 
disappears.
Malfunction
In the event of a malfunction, dashes are 
displayed flashing and then fixed (orange) 
instead of the speed setting.
Have it checked by a PEUGEOT dealer or a 
qualified workshop.
Drive Assist  Plus
This system automatically adjusts the speed  and corrects the trajectory of the vehicle, using 
Adaptive cruise control with Stop&Go function in 
conjunction with Lane positioning assist.
These two functions must be activated and in 
operation.
For more information on  Adaptive cruise 
control and Lane positioning assist , refer to 
the corresponding sections.
The system assists the driver by acting  on the steering, acceleration and braking 
within the physical limits and capacities of the 
vehicle. Certain road infrastructure elements 
or vehicles in the surroundings may not be 
properly seen or may be poorly interpreted by 
the camera and radar, resulting in an 
unexpected change in direction, a lack of 
steering correction and/or inappropriate 
management of acceleration or braking.
Primarily designed for driving on main 
roads and motorways, this system only   CarM an uals 2 .c o m  
Page 117 of 244

11 5
Driving
6works with moving vehicles driving in the 
same direction as your vehicle.
Selecting/Deselecting the 
system
 
 
 
ASSIST
 
► Press this button successively until the Drive 
Assist Plus mode is displayed on the instrument 
panel.
►
 
After a few seconds, the Drive 
 Assist Plus 
mode is selected. The Driving aids mini-view is 
displayed on the instrument panel.
 
 
The colour of the symbols, representing the 
steering wheel and the side lines, depends on 
the operating state of the system:
(grey)
One or more operating conditions is not 
met; the system is paused.
(green)
All operating conditions are met; the 
system is active.
(orange)
System malfunction.
►
 
Press this button successively again until the 
OFF mode is displayed on the instrument panel. 
►
 
After a few seconds, the Drive 
 Assist Plus 
mode is deselected. The Driving aids mini-view 
disappears.
Drive Assist  2.0
This system automatically regulates the speed  and corrects the trajectory of the vehicle by 
combining the following functions:
–
 
Drive 
 Assist Plus with Adaptive cruise control 
with Stop&Go function and Lane positioning 
assist.
–
 
Semi-automatic lane changing.
–
 
Speed setting advance recommendation.
For more information on these functions, refer to 
the corresponding sections.
The availability of the system depends on the 
country you are driving in.
This system is only to be used on eligible 
motorways and main roads.
Selecting/Deselecting the 
system
It is configured in the ADAS touch screen 
application.
►
 
Select the 
 Functions  tab, then select/
deselect Drive Assist.
The system's status is saved when the ignition is 
switched off.
Adaptive cruise control
For more information, refer to the 
General recommendations on the use 
of driving and manoeuvring aids  and the 
Specific recommendations on cruise 
control.
This system automatically maintains the vehicle 
speed at a value set by the driver (speed 
setting), while respecting a safety distance from 
the vehicle in front (target vehicle) previously set 
by the driver. The system automatically manages 
the acceleration and deceleration of the vehicle.
With the Stop
  &   Go function , the system 
manages braking until the vehicle comes to a 
complete stop and restarts the vehicle.
The brake lamps come on if the vehicle  is slowed down by the system.
The system is not operational in the event of 
a brake lamp failure.
 
 
To do this, the system uses a camera fitted at 
the top of the windscreen and, depending on 
version, a radar fitted in the front bumper.  CarM an uals 2 .c o m  
Page 118 of 244

11 6
Driving
Primarily designed for driving on main 
roads and motorways, this system only 
works with moving vehicles driving in the 
same direction as your vehicle.
If the driver activates the direction 
indicator to overtake a slower vehicle, 
cruise control may temporarily reduce the 
distance to the target vehicle to facilitate 
overtaking, without exceeding the speed 
setting.
Steering-mounted controls 
 
 
 
1. Selection/deselection of cruise control only or 
Drive Assist Plus (depending on version)
2. Switch on/pause cruise control at the 
previously saved speed setting
Confirmation of vehicle restart after automatic 
stop (version with Stop & Go function) 3.
Increase/Decrease the speed setting (if 
cruise control activated)
Activation of cruise control in progress (if 
cruise control deactivated)
Display and configuration of the inter-vehicle 
distance setting
4. Activation of cruise control in progress
Use the speed suggested by the Road signs 
recognition function
For more information on the  Road signs 
recognition
 
 function, refer to the corresponding 
section.
Information displayed on 
the instrument panel
 
 
5. Cruise control activated (green)/paused 
(grey)
6. Speed setting value 7.
Speed suggested by the Road signs 
recognition function
8. Vehicle held stationary (version with 
Stop&Go function)
9. Inter-vehicle distance setting
10. Position of the vehicle detected by the 
system
Use
Selecting the system
► With the engine running, press successively 
on   1-ASSIST until cruise control mode is 
displayed on the instrument panel. 
►
 
After a few seconds, cruise control mode is 
selected. 
The Driving aids mini-view is displayed 
(grey) and cruise control is ready to be activated.
Switching on cruise control
The vehicle speed must be between 0 and 
112   mph (0 and 180   km/h).
System activation is also subject to the following 
conditions:
–
 
Driver's door closed.
–
 
Driver's seat belt fastened.
–
  Mode  D selected on the automatic gearbox.
–
 
Parking brake released.
–
 
If the vehicle is stationary
 , brake pedal 
depressed.
A message OK? is displayed if all activation 
conditions are met.
►
 
Press 
 4-OK: the current speed becomes the 
speed setting (minimum 19 mph (30
  km/h)) and   CarM an uals 2 .c o m  
Page 119 of 244

11 7
Driving
6cruise control is immediately activated (green 
display).
Modifying the speed setting
To change the speed setting using the vehicle’s 
current speed:
► 
For steps of +/- 1 mph (1 km/h), make 
successive short presses upwards/downwards 
on 
3 to increase/decrease.
►
 
For steps of +/- 5 mph (5
   km/h), press and 
hold upwards/downwards on  3 to increase/
decrease.
Prolonged pressing and holding 
upwards/downwards on  3  causes a rapid 
change in vehicle speed.
When the function is activated, the speed 
setting value can be changed using the speed 
suggested by the Road signs recognition 
function displayed on the instrument panel:
–
 
When passing the sign:
►
 
Press 
 4-OK to save the suggested speed. 
This value is then immediately shown as the new 
speed setting on the instrument panel.
–
 
After passing the sign:
►
 
Press 
 4-OK. The message "OK?" is 
displayed to confirm the request to save.
►
 
Press 
 4-OK again to save the suggested 
speed. The new speed setting value is displayed 
on the instrument panel.
Pausing/Resumption of cruise control
► Press  2-II> or depress the brake pedal. 
The symbol "II>" is displayed if all activation 
conditions are met. 
Cruise control may also have been paused:
–
 
automatically
 , if the electronic stability control 
(ESC) system is triggered.
–
 
by shifting to neutral or engaging reverse gear
 .
–
 
by using the electric parking brake.
–
 
by unfastening the seat belt.
–
 
by opening the driver's door
 .
►
 
Press 
 2-II> or 4-OK to reactivate cruise 
control.
Following braking that has brought the vehicle 
to a complete stop, if the traffic conditions do 
not allow the vehicle to begin moving again 
within 3
  seconds of stopping, press  
2-II>
  or the 
accelerator pedal to move off.
Cruise control remains active following a 
gear change.
When cruise control is paused and the 
driver tries to reactivate it, the message 
"Activation not possible, conditions not 
met" is temporarily displayed if reactivation is 
impossible (required conditions not met).
Changing the programmed speed setting 
with the Road signs recognition function
► Press  4-OK to accept the speed suggested 
by the function on the instrument panel, then 
press again to confirm.
If the selected speed is far from the 
current vehicle speed, a strong 
acceleration or deceleration is felt.
Changing the inter-vehicle distance
► Press  3 to display the distance setting 
thresholds (" Distant", "Normal" or "Close"), 
then make successive short presses upwards/
downwards to select a threshold.
After a few seconds, the option is accepted and 
will be memorised when the ignition is switched 
off.
The driver must keep a sufficient safety distance 
from the vehicle in front.
Temporarily exceeding the speed setting
► Depress the accelerator pedal.  The system 
is suspended as long as the acceleration is 
maintained. When the accelerator pedal is 
released, the speed setting flashes while the 
current vehicle speed is above the speed setting.
Deselecting the system
► Press successively on  1-ASSIST  until   OFF 
mode is displayed on the instrument panel. 
►
 
After a few seconds, cruise control mode 
is deselected. 
The Driving aids mini-view 
disappears.
Messages and alerts
The actual order of display of the  messages or alerts may be different.  CarM an uals 2 .c o m  
Page 120 of 244

11 8
Driving
Cruise control selected, but 
cannot be activated.
All the operating conditions have 
not been met.
(grey)
Cruise control selected, awaiting 
confirmation for activation.
All the operating conditions are 
met.
(grey)
Cruise control paused, but 
cannot be reactivated.
All the operating conditions have 
not been met.
(grey)/(grey)
Cruise control paused, awaiting 
confirmation for reactivation.
All the operating conditions are 
met.
(grey)/(grey)
Cruise control active, vehicle 
detected.
(green)/(green)
Cruise control suspended, 
following brief acceleration by 
the driver.
(green)/(grey)
(orange)
"Take back control"
►
 
Brake or accelerate, depending on the 
context.
(red)
"Take back   control"
►
 
T
ake back control of the vehicle 
immediately: the system cannot manage the 
current driving situation.
"Activation refused, conditions 
unsuitable "
The system refuses to activate cruise control, as 
the necessary conditions are not fulfilled.
Stop & Go function
The system has brought the 
vehicle to a complete stop.
(green)/(green)
Within 3 seconds of stopping, the vehicle 
gradually and automatically begins moving 
again.
Beyond 3 seconds of stopping, the driver must 
accelerate or press  2-I I> to move off.
If the driver takes no action after the 
vehicle has been stopped, the electric 
parking brake is applied automatically after 
about 5 minutes.
While the vehicle is immobilised, the 
following recommendations apply:
–
 
The driver should not leave the vehicle.
– Do not open the boot.
–  Do not drop off or pick up passengers.
–
 
Do not engage reverse gear
 .
When restarting the vehicle, beware of 
cyclists, pedestrians or animals who are 
not taken into account by the system.
The driver must monitor their surroundings.
Operating limits
Cruise control operates by day and night, in dry 
weather or moderate rainfall.
Certain situations cannot be managed by the 
system and require driver intervention.
Cases not taken into account by the system:
–
 
Pedestrians, cyclists, animals.
–
 
Stationary vehicles (e.g.
   traffic jams, 
breakdown).
 
 
– Vehicles crossing your lane.
–  V ehicles driving in the opposite direction.
Situations where the driver must suspend the 
system:
   CarM an uals 2 .c o m