Tunnel Detection; Main/Dipped Beam - Volvo V40 Cross Country Owner's Manual

03 Instruments and controls
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On cars with halogen headlamps the daytime
running light lamps are switched off when
main or dipped beam is activated.
On cars with active Xenon headlamps
(p. 89) the daytime running light lamps are
switched on with reduced brightness when
main or dipped beam is activated.
WARNING
03
This system help to save energy - it cannot
determine in all situations when daylight is
too weak or sufficiently strong, e.g. in mist
and rain.
The driver is always responsible for ensur-
ing that the car is driven with the correct
beam pattern for the traffic situation and in
accordance with applicable traffic regula-
tions.
Related information
•
Lamp replacement - location of front
lamps (p. 362)
*
86
Option/accessory, for more information, see Introduction.

Tunnel detection*

Tunnel detection changes the lighting from
daytime running lights to dipped beam when
the car is driven into a tunnel. Approx. 20 sec-
onds after the car has left the tunnel, the light-
ing returns to daytime running lights.
The tunnel detection function is available in
cars with rain sensor*. The sensor detects the
entrance to a tunnel and resets the lighting
from daytime running lights to dipped beam.
Approx. 20 seconds after the car has left the
tunnel, the lighting returns to daytime running
lights. If the car is driven into another tunnel
within this time period then dipped beam is
kept switched on. This prevents frequent
changes to the car's beam pattern.
Note that the headlamp control's knob must
remain in position for tunnel detection
to work.
Related information
•
Main/dipped beam (p. 86)
•
Light switches (p. 83)

Main/dipped beam

Stalk switch and knob for headlamp control.
Position for main beam flash
Position for main beam
Dipped beam
With the knob in position, dipped beam
is activated automatically at dusk or when
daylight becomes too weak. Dipped beam is
also activated automatically when the rear fog
lamp is activated.
With the knob in position, dipped beam
is always switched on when the engine is run-
ning or when key position II is active.
Main beam flash
Move the stalk switch gently towards the
steering wheel to the position for main beam
flash. Main beam comes on until the stalk
switch is released.