CITROEN C4 Owner's Handbook Manual page 175

The alert is given by a warning lamp
which comes on in the door mirror on
the side in question as soon as a ve-
hicle - car, lorry, cycle - is detected and
the following conditions are fulfi lled:
- all the vehicles must be moving in
the same direction,
- the speed of your vehicle is between
7 and 75 mph (12 and 140 km/h),
- the difference in speed between
your vehicle and the other vehicles
must be less than 6 mph (10 km/h),
- the traffi c must be fl owing normally,
- in the case of an overtaking ma-
noeuvre, if this is prolonged and the
vehicle being overtaken remains in
the blind spot,
- you are driving on a straight or
slightly curved road,
- your vehicle is not pulling a trailer, a
caravan...
D R I V I N G
No alert will be given in the following
situations:
- in the presence of stationary objects
(parked vehicles, barriers, street
lamps, road signs...),
- with vehicles moving in the opposite
direction,
- driving on a sinuous road or a sharp
corner,
- when overtaking (or being over-
taken by) a very long vehicle (lorry,
coach...) which is at the same time
detected at the rear in the blind spot
angle and present in the driver's for-
ward fi eld of vision,
- in very heavy traffi c: vehicles detect-
ed in front and behind are confused
with a lorry or a stationary object,
- when overtaking quickly.
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