Volvo XC90: Lighting / Using the rear window wiper/washer
The rear window washer/wiper is designed to clean the rear window. Use the
right-side steering wheel lever to start and control the wiper/washer.
Activating the rear window wiper/washer
NOTE
The rear window wiper motor is equipped with overheating protection that
switches off the motor if it becomes overheated. The rear window wiper can be operated
again after a cooling-down period.

Select
for interval rear window wiper.
Select
for continuous rear window wiper.
- Move the right-side steering wheel lever forward to wash/wipe the rear window.
The windshield and headlight washers are designed to clean the windshield
and headlights. Use the right-side steering wheel lever to start the windshield
and headlight washers...
If reverse gear is engaged while the windshield wipers are on, the rear window
wipers will start. This function is deactivated when a different gear is selected...
Other information:
The vehicle should be washed as soon as it becomes dirty. The longer the dirt
remains, the more difficult it will be to keep the vehicle clean. It could also
lead to paint damage.
Washing your vehicle in an automatic car wash is a fast and easy way to keep
your vehicle clean, but it does not reach all areas of the vehicle...
The vehicle should be washed as soon as it becomes dirty. This makes the vehicle
easier to clean because dirt does not attach as strongly. It also reduces the risk
of scratches and keeps the vehicle looking new. Wash the vehicle in a car wash or
garage with an oil separator and use car washing detergent...