Alfa Romeo Giulietta Owner's Handbook Manual page 82

RAIN SENSOR fig. 42
GETTING (for versions/markets, where provided)
TO KNOW
This is an infrared LED sensor fitted on the windscreen. It can de-
YOUR CAR
tect the presence of rain and consequently manage windscreen wip-
ing in accordance with the amount of water on the windscreen.
Activation
SAFETY
The sensor is activated by turning the A ring fig. 41 to the
"automatic" position ("AUTO"): the frequency of the windscreen
wiper strokes is automatically adjusted depending on the amount
STARTING
of water on the windscreen. This frequency can vary from no stroke
AND DRIVING
(no rain - windscreen dry) up to the 2
(heavy rain - windscreen wet).
The sensitivity of the rain sensor can be adjusted through the Set
Up menu (see "Display" paragraph in this chapter).
IN AN
EMERGENCY
SERVICING AND
MAINTENANCE
TECHNICAL
SPECIFICATIONS
CONTENTS
78 fig. 42
nd
constant speed operation
A0K0111m
If the engine is switched off with the stalk in the automatic posi-
tion, no wiping cycle will take place when the engine is started
again even if it is raining. This prevents accidental activation of the
rain sensor when the engine is started (i.e. when the windscreen
is being washed by hand or the wipers are stuck to the windscreen
by ice).
To restore automatic operation of the rain sensor, turn the ring on
the right A stalk fig. 41 from automatic position (AUTO) to O po-
sition and then turn A ring back to the AUTO position.
When the rain sensor is reactivated using any of the manoeuvres
described above, reactivation is indicated by a single stroke of
the windscreen wipers, regardless of the condition of the wind-
screen. If the sensitivity of the rain sensor is adjusted whilst it is
in operation, a single stroke of the windscreen wiper takes place
to confirm the changed setting.
In the event of the malfunction of the rain sensor whilst it is ac-
tive, the windscreen wiper operates intermittently at a speed con-
sistent with the sensitivity setting of the rain sensor, regardless of
whether it is raining or not (the sensor fault is indicated on the
instrument panel display). The sensor continues to operate and it
is possible to set the windscreen wiper to continuous mode (1
nd
2 speed). The fault indication remains for as long as the sensor
is active.
st
or