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Driving -> Starting/switching off the engine with Keyless Entry and Start for Your Citroen C4 SUV Third Generation (2020-2025)

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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Driving  
while pressing the "START/STOP" button to  
assist unlocking of the steering column.  
Never leave your vehicle with the  
electronic key still inside.  
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Petrol engines  
With Petrol engines, after a cold start,  
pre-heating the catalytic converter can cause  
noticeable engine vibrations, for anything up  
to 2 minutes (accelerated idle speed).  
Switching on the ignition  
without starting the engine  
► Place and hold the remote control against the  
reader.  
If the engine stalls, release the clutch  
pedal and fully depress it again, the  
engine will restart automatically.  
With a manual gearbox, place the gear lever  
in neutral, then fully depress the clutch pedal.  
With an automatic gearbox or a drive  
selector, select mode P, then depress the brake  
pedal.  
Switching off  
► Immobilise the vehicle using the parking  
brake.  
► With a manual gearbox, ideally put the gear  
lever into neutral.  
► With an automatic gearbox, ideally select  
mode P or N.  
► Press the "START/STOP" button.  
In some circumstances, it is necessary to turn  
the steering wheel to lock the steering column.  
On certain versions with an automatic gearbox  
(EAT8), the steering column does not lock, but  
the gearbox locks in mode P.  
► Press the "START/STOP" button.  
The engine starts.  
With the electronic key in the passenger  
compartment, pressing the "START/STOP"  
button, without depressing any of the pedals,  
allows the ignition to be switched on without  
starting the engine.  
Back-up switch-off  
► Press this button again to switch off the  
ignition and allow the vehicle to be locked.  
Key not detected  
Back-up starting  
If the vehicle is not immobilised, the  
engine will not stop.  
A back-up reader is fitted to the steering column,  
to enable the engine to be started if the system  
fails to detect the key in the recognition zone, or  
if the battery in the electronic key is flat.  
With the engine off, the braking and  
steering assistance systems are also cut  
off - risk of loss of control of the vehicle!  
If the electronic key is not detected or is no  
longer in the recognition zone, a message  
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