Driving
comes on in the door mirror on the side in
question as soon as a vehicle - car, lorry,
bicycle - is detected and the following
conditions are fulfilled:
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all the vehicles must be moving in the same
direction,
the speed of your vehicle is between 7 and
87 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),
4
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the traffic must be flowing normally,
in the case of an overtaking manoeuvre,
if this is prolonged and the vehicle being
overtaken remains in the blind spot,
you are driving on a straight or slightly
curved road,
No alert will be given in the following situations:
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when overtaking (or being overtaken 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
forward field of vision,
in very heavy traffic: vehicles detected in
front and behind are confused with a lorry
or a stationary object,
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in the presence of stationary objects
(parked vehicles, barriers, street lamps,
road signs...),
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your vehicle is not pulling a trailer,
a caravan...
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with vehicles moving in the opposite
direction,
driving on a sinuous road or a sharp corner,
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when overtaking quickly.
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English 