CITROEN 2 CV4 1975 Owner's Manual page 70

Fig. 12
Antri-theft-ignition-starter
device
1 - Anti-theft position
2 - Ignition position
3 - Starter position
DRIVING
STARTING
ANTI-THEFT-IGNITION-STARTER SWITCH (Fig. 12)
The device is situated below the dashboard, on the left-hand side of
the steering column.
The successive positions of the key when turned clockwise are as
follows:
1 - Anti-theft (steering locked)
2 - Garage (steering free)
3 - Ignition
4 - Starter
When turning from the "Anti-theft" position to the "Garage"
position, it may be necessary to rock the steering wheel slightly
while turning the key.
As there is a safety device which prevents operating the starter
twice in succession, it is necessary (if the engine stops or does not
start first time), to switch off the ignition, then switch it on again in
order to be able to operate the starter a second time.
To withdraw the key, pull it slightly when approaching the required
position ("Anti-theft" or "Garage").
Never withdraw the key before the car has come to a complete
stop.
Anti-theft, Ignition, Starter