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Dashboard instruments -> Head-up display for Your Citroen C4 SUV Third Generation (2020-2025)

Dashboard instruments  
– With 2 widgets, reduced display in side  
position.  
A. The speed of the vehicle.  
1. Switching on  
B. Cruise control/speed limiter information,  
indication of danger zones (with connected  
navigation) and, where fitted, information  
from the Road signs recognition function.  
C. If the vehicle is so equipped, inter-vehicle  
distance information, lane positioning assist  
information and automatic emergency braking  
alerts.  
2. Switching off (long press)  
3. Brightness adjustment  
4. Display height adjustment  
The colour for each driving mode may be  
personalised. A default setting is suggested.  
The setting also matches the interior ambient  
lighting (depending on availability).  
The settings are changed via the  
Settings > Customization touch screen  
application.  
For further information on Personalisation -  
Instrument Panel, refer to the corresponding  
section in the audio equipment and telematics  
systems.  
Activation/Deactivation  
► With the engine running, press any button to  
activate the system and deploy the projection  
blade.  
► Press and hold button 2 to deactivate the  
system and retract the projection blade.  
The state of the system is saved when the  
engine is switched off and restored on restarting.  
D. If the vehicle is so equipped, navigation  
information.  
For more information about Navigation,  
refer to the sections describing the audio  
and telematics systems.  
Head-up display  
System which projects various information onto  
a transparent blade placed in the driver's field  
of vision to avoid the driver having to take their  
eyes off the road.  
Adjusting the height  
► With the engine running, adjust the display to  
the desired height using the buttons 4:  
• up to move the display up,  
Selector  
• down to move the display down.  
Brightness adjustment  
Display in operation  
► With the engine running, adjust the  
brightness of the information display using the  
buttons 3:  
• on the "sun" to increase the brightness,  
• on the "moon" to decrease the brightness.  
When stationary or while driving, no  
objects should be placed around the  
projection blade (or in its recess) so as not to  
impede its movement and correct operation.  
Once the system has been activated, the  
following information is grouped together in the  
head-up display:  
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Dashboard instruments  
In certain extreme weather conditions  
(rain and/or snow, bright sunshine, etc.),  
the head-up display may not be legible or  
may suffer temporary interference.  
Some sunglasses may hamper reading of the  
information.  
To clean the projection blade, use a clean,  
soft cloth (such as a spectacles cloth or  
microfibre cloth). Do not use a dry or abrasive  
cloth, or detergent or solvent products, due to  
the risk of scratching the projection blade or  
damaging the non-reflective coating.  
When the ignition is switched on  
List of warning and  
indicator lamps  
1
Certain red or orange warning lamps come on  
for a few seconds when the ignition is switched  
on. These warning lamps should go off as soon  
as the engine is started.  
For more information on a system or a function,  
refer to the corresponding section.  
Red warning/indicator lamps  
STOP  
Fixed, associated with another warning  
lamp, accompanied by the display of a  
message and an audible signal.  
A serious fault with the engine, braking system,  
power steering or automatic gearbox or a major  
electrical fault has been detected.  
Carry out (1) and then (2).  
Persistent warning lamp  
If a red or orange warning lamp comes on, there  
may be fault which needs further investigation.  
If a lamp remains lit  
Engine self-diagnostics system (Petrol or  
Diesel)  
The references (1), (2) and (3) in the warning  
and indicator lamp description indicate whether  
you should contact a qualified professional in  
addition to the immediate recommended actions.  
(1): You must stop the vehicle.  
Stop as soon as it is safe to do so and switch off  
the ignition.  
(2): Contact a CITROËN dealer or a qualified  
workshop.  
(3): Visit a CITROËN dealer or a qualified  
workshop.  
Warning and indicator  
lamps  
Displayed as symbols, the warning and indicator  
lamps inform the driver of the occurrence of a  
malfunction (warning lamps) or of the operating  
status of a system (operation or deactivation  
indicator lamps). Certain lamps light up in two  
ways (fixed or flashing) and/or in several colours.  
Fixed.  
A major engine fault has been  
detected.  
Carry out (1) and then (2).  
Maximum coolant temperature  
Fixed.  
The temperature of the cooling system is  
too high.  
Carry out (1), then wait until the engine has  
cooled down before topping up the level, if  
necessary. If the problem persists, carry out (2).  
Associated warnings  
The illumination of a lamp may be accompanied  
by an audible signal and/or a message displayed  
in a screen.  
Relating the type of alert to the operating status  
of the vehicle allows you to determine whether  
the situation is normal or whether a fault has  
occurred: refer to the description of each lamp  
for further information.  
Engine oil pressure (Petrol or Diesel)  
Fixed.  
There is a fault with the engine lubrication  
system.  
Carry out (1) and then (2).  
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