Opel Vivaro Owner's Manual page 17

Windscreen washer
Windscreen washer system 3 95.
Washer fluid 3 216.
Wiper blade replacement 3 219.
Rear window wiper
0 : off
S : rear window wiper
R : rear window washer
In brief
Rear window washer
Set to R.
Washer fluid is sprayed on the rear
window and the wiper wipes a few
times.
Rear window wiper and washer
3 97.
15