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Driving -> Starting / Switching off the engine with the key for Your Citroen C4 SUV Third Generation (2020-2025)

Driving  
down on its shaft in the ignition switch and  
could cause a malfunction.  
Petrol engines  
Anti-theft protection  
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After a cold start, preheating the catalytic  
converter can cause noticeable engine  
vibrations, for anything up to 2 minutes  
(accelerated idle speed).  
Electronic immobiliser  
The keys contain a code, which must be  
recognised by the vehicle before starting is  
possible.  
If the system malfunctions, indicated by the  
display of a message, the engine will not start.  
Contact a CITROËN dealer.  
Ignition on position  
It allows the use of the vehicle's electric  
equipment or the charging of accessories.  
Once the state of charge of the battery drops to  
the reserve level, the system switches to energy  
economy mode: the power supply is cut off  
automatically to preserve the remaining battery  
charge.  
► With a Diesel engine, turn the key to position  
2, to activate the engine preheating system.  
Wait until this warning lamp goes off on  
the instrument panel, then turn the key to  
position 3 without pressing the accelerator pedal,  
to operate the starter motor. Once the engine  
has started, release the key and allow it to return  
to position 2.  
Starting / Switching off the  
engine with the key  
Starting the engine  
With the parking brake applied:  
In wintry conditions, the warning lamp  
may stay on for a longer period. When  
the engine is hot, the warning lamp does not  
come on.  
In mild conditions, do not leave the engine  
to warm up while stationary, but move off  
straight away and drive at moderate speed.  
► With a manual gearbox, place the gear lever  
in neutral then fully depress the clutch pedal.  
► With an automatic gearbox, place the gear  
selector in mode N or P then depress the brake  
pedal.  
Key ignition switch  
► Insert the key into the ignition switch; the  
system recognises the code.  
► Unlock the steering column by simultaneously  
turning the steering wheel and the key.  
If the engine does not start straight away,  
switch off the ignition. Wait a few  
In certain cases, you may need to apply  
significant force to move the steering  
wheel (e.g. wheels turned to full lock).  
seconds before operating the starter motor  
again. If the engine does not start after a few  
attempts, do not keep trying - risk of  
damaging the starter motor and the engine!  
Contact a CITROËN dealer or a qualified  
workshop.  
It has 3 positions:  
1. Stop: inserting and removing the key,  
steering column locked.  
2. Ignition: steering column unlocked, ignition  
on, Diesel preheating, engine running.  
3. Starting.  
► With a petrol engine, operate the starter  
motor by turning the key to position 3 without  
pressing the accelerator pedal, until the engine  
starts. Once the engine has started, release the  
key and allow it to return to position 2.  
Avoid attaching heavy objects to the key  
or the remote control. It would weigh  
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Driving  
For more information on Energy  
economy mode, refer to the  
corresponding section.  
Switching off the engine  
Starting  
► Immobilise the vehicle.  
► With the engine at idle, turn the key to  
position 1.  
Key left in  
► Remove the key from the ignition switch.  
To lock the steering column, turn the steering  
wheel until it locks.  
When the driver's door is opened, a  
message is displayed, accompanied by an  
audible signal, if the key has been left in the  
ignition switch in position 1.  
If the key has been left in the ignition switch  
in position 2, the ignition will be switched off  
automatically after one hour.  
To facilitate unlocking of the steering  
column, it is recommended that the  
wheels be returned to the straight ahead  
position before switching off the engine.  
► With a manual gearbox, place the gear lever  
in neutral and fully depress the clutch pedal.  
► With an automatic gearbox, select mode P  
or N and press the brake pedal.  
► Press the "START/STOP" button while  
maintaining pressure on the pedal until the  
engine starts.  
To switch the ignition back on, turn the key to  
position 1, then back to position 2.  
Never switch off the ignition before the  
complete immobilisation of the vehicle.  
With the engine off, the braking and steering  
assistance systems are also cut off - risk of  
loss of control of the vehicle!  
Starting/switching off the  
engine with Keyless Entry  
and Start  
Diesel engines  
Check that the parking brake is correctly  
applied, particularly on sloping ground.  
When leaving the vehicle, keep the key in  
your possession and lock the vehicle.  
In negative temperatures and/or when the  
engine is cold, starting takes place only after the  
preheating warning lamp goes out.  
If this warning lamp comes on after  
pressing the "START/STOP" button:  
► Keep the pedal fully depressed and do not  
press the "START/STOP" button again until the  
engine is running.  
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  
The electronic key must be present in the  
passenger compartment.  
The electronic key is also detected in the  
boot.  
If the electronic key is not detected, a  
message is displayed.  
Move the electronic key so that the engine  
can be started or switched off.  
If there is still a problem, refer to the "Key  
not detected - Back-up starting or Back-up  
switch-off" section.  
Energy economy mode  
After the engine has stopped (position 1. Stop),  
for a maximum combined duration of 30 minutes,  
you can still use functions such as the audio and  
telematics system, courtesy lamps or dipped  
beam headlamps.  
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