CITROEN C4 PICASSO Handbook page 59

If one of the doors or the boot is still
open or if the electronic key for the
Keyless Entry and Starting system has
been left inside the vehicle, the central
locking does not take place.
However, the alarm (if present) will be
fully activated after about 45 seconds.
If the vehicle is unlocked by mistake
and with no action on the doors or boot,
the vehicle will lock again automatically
after about thirty seconds.
If the alarm had been activated
previously, it will not be reactivated
automatically.
The automatic folding and unfolding
of the door mirrors can be deactivated
by a CITRoËn dealer or a qualified
workshop.
As a safety measure (children on
board), never leave the vehicle without
taking the key for the Keyless Entry and
Starting system, even for a short period.
Be aware of the risk of theft when the
key for the Keyless Entry and Starting
system is in one of the defined zones
with the vehicle unlocked.
In order to preserve the battery in the
electronic key and the vehicle's battery,
the "Hands-free" functions are put into
long-term standby after 21 days without
use. To restore these functions, press
one of the remote control buttons or
start the engine with the electronic key
in the reader (see the "Starting with
the Keyless Entry and Starting system"
section).
Accumulations (water, dust, grime,
salt...) on the inner surface if the door
handle may affect detection.
If cleaning the inner surface of the door
handle using a cloth does not restore
detection, contact a CITRoËn dealer or
a qualified workshop.
A sudden splash of water (stream of
water, high pressure jet washer, ...)
may be identified by the system as the
desire to open the vehicle.
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