Anti-Theft Protection; Electronic Immobiliser; Key Ignition Switch; Starting/Switching Off The Engine With The Key - CITROEN C5 AIRCROSS Handbook

Driving

Anti-theft protection

Electronic immobiliser

The keys include an electronic engine
immobiliser system, whose secret code must
be recognised in order for starting to be
possible.
If the system malfunctions, indicated by the
display of a message, the engine will not start.
Contact the CITROËN dealer.
Starting/Switching off the
engine with the key

Key ignition switch

It has 3 positions:
- position 1 (Stop): inserting and removing
the key, steering column locked.
position 2 (Ignition on): steering column
-
unlocked, ignition on, Diesel preheating,
engine running,
position 3 (Starting).
-
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Avoid attaching heavy objects to the key
or the remote control, which would weigh
down on its blade in the ignition switch
and could cause a malfunction.
Ignition on position
It allows the use of the vehicle's electric
equipment or portable devices to be charged.
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.
Switching off the engine leads to a loss of
braking assistance.
Starting the engine
Parking brake applied:
F With a manual gearbox, place the gear
lever in neutral then depress the clutch
pedal fully.
F With an automatic gearbox, place the gear
selector in mode N or P then depress the
brake pedal fully.
F Insert the key into the ignition switch; the
system recognises the code.
F Unlock the steering column by
simultaneously turning the steering wheel
and the key.
In certain cases, you may have to apply
significant force to move the steering
wheel (wheels on full lock, for example).
F 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
starts, release the key.
With petrol engines, after a cold start,
preheating the catalytic converter can
cause noticeable engine vibrations for
anything up to 2 minutes while stationary
with the engine running (accelerated idle
speed).
F With a Diesel engine, turn the key to
position 2, ignition on, to operate the engine
pre-heating system.