CITROËN C3 Handbook page 126

Safety
Anti-lock braking system (ABS) and electronic brake force
distribution (EBFD)
The fixed illumination of this warning
lamp indicates that there is a fault
with the ABS.
The vehicle retains conventional
braking. Drive carefully at moderate
speed.
When this warning lamp comes on,
coupled with the STOP and ABS warning
lamps, accompanied by an audible signal
and a message, it indicates that there
is a fault with the electronic brake force
distribution (EBFD).
You must stop as soon as it is safe to do so.
In both cases, have the system checked by a
CITROËN dealer or a qualified workshop as
soon as possible.
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When changing wheels (tyres and
rims), ensure that these are approved
for your vehicle.
Normal operation of the ABS may make
itself felt by slight vibrations of the brake
pedal.
In emergency braking, press very
firmly and maintain this pressure.