Porsche Cayenne Owner's Manual page 138

The rain sensor remains switched off if the wiper
lever is already in position 1 when the ignition is
switched on.
To switch the rain sensor on again:
f Move wiper stalk to position 0 and then to
position 1 – switching on is confirmed by one
wipe of the windscreen – or
f Operate windscreen washer system 5 –
switching on is confirmed by three wipes of the
windscreen – or
f Change the sensitivity of the rain sensor with
four-stage switch A.
138
Controls, Safety, Instruments
Changing the sensitivity of the rain sensor
Sensitivity can be set with switch A in 4 stages:
f Adjust switch A upwards –
high sensitivity.
The setting is confirmed by one wipe of the
windshield.
f Adjust switch A downwards –
low sensitivity.
2 – Front windshield wiper – slow
f Move wiper stalk upwards to the second click.
3 – Front windshield wiper – fast
f Move wiper stalk upwards to the third click.
At speeds of less than approx. ca. 2.5 mph
(4 km/h), rain sensor operation mode is automat-
ically activated if the windshield wiper is switched
on. If you exceed a speed of approx. 5 mph
(8 km/h), the system switches to the pre-selected
wiper level.
4 – Front windshield wiper – one-touch oper-
ation
f Move wiper stalk downwards. The front wind-
shield wipers go through one wipe cycle.
5 – Front windshield wipers and washer sys-
tem
f Pull wiper stalk towards the steering wheel.
The washer system sprays and wipes while the
lever is pulled towards the steering wheel.
When the wiper lever is released, a few wipes
are executed.
Headlight washer (on vehicles with Bi-Xe-
non headlights):
The washer sprays only while low beam or high
beam is switched on.
To activate the headlight washer system, the
wiper lever must be pulled for a longer period
of time.
The headlight washer can be re-activated at
the earliest after five washing cycles.
The spray duration is limited.
Maintenance note
f If heavily soiled, repeat wash.
f Persistent dirt (e.g. insect remains) should be
regularly removed.
Please observe the chapter "CAR CARE IN-
STRUCTIONS" on Page 284.
The front windscreen washer nozzles are heat-
ed when the ignition is on, as a precaution against
freezing. However, this does not replace the use
of antifreeze.