Tailgate wiper and reverse gear

If the windshield wipers are on and the transmission is put into reverse gear, the tailgate wiper will go into intermittent wiping function1.
This function is deactivated when a different gear is selected.
NOTE
On vehicles with the optional rain sensor,
the tailgate wiper will be activated when
reverse is selected, if the rain sensor is activated
and it is raining.
If the tailgate wiper is in the normal (continuous) wiping mode, selecting different gears will not affect its function.
See also:
Children should be seated safely
Volvo recommends the proper use of restraint
systems for all occupants including children.
Remember that, regardless of age and size, a
child should always be properly restrained in a
vehicle.
...
Shiftlock
When your vehicle is parked, the gear selector
is locked in the P (Park) position. To release the
selector from this position, turn the ignition key
to position II (or start the engine), depress th ...
Operation
Chassis settings
Use the buttons in the center console to
change setting. The setting in use when the
engine is switched off is activated the next time
the engine is started. ...
