![P5-1617-S90 V90 Windshield wipers and washers](https://www.volvocars.com/images/support/img5729569efa0a1528c0a801527debe4a4_1_--_--_VOICEpnghigh.png?imwidth=1280)
Thumbwheel, used to set rain sensor sensitivity and wiper swipe frequency.
Single sweep
![P5-1507-Windshield Single sweep](https://www.volvocars.com/images/support/img264483e08d596edfc0a80152196ae9b9_1_--_--_VOICEpnghigh.png?imwidth=1280)
Lower the stalk switch and release to make one sweep.
Windscreen wipers off
![P5-1507-Windshield wiper off](https://www.volvocars.com/images/support/imgf0e995368d594272c0a8015271972e28_1_--_--_VOICEpnghigh.png?imwidth=1280)
Move the stalk switch to position 0 to switch off the windscreen wipers.
Intermittent wiping
![P5-1507-Windshield, intermittent wiping](https://www.volvocars.com/images/support/imga31ae2c28d62c68cc0a8015270844c1c_1_--_--_VOICEpnghigh.png?imwidth=1280)
Set the number of sweeps per time unit with the thumbwheel when intermittent wiping is selected.
Continuous wiping
![P5-1507-Windshield continuous wiping 1](https://www.volvocars.com/images/support/imgeaf86a5a8d629a5dc0a8015274b2f03b_1_--_--_VOICEpnghigh.png?imwidth=1280)
Raise the stalk switch for the wipers to sweep at normal speed.
![P5-1507-Windshield continuous wiping 2](https://www.volvocars.com/images/support/img6c72f0f68d626a68c0a801520398afb7_1_--_--_VOICEpnghigh.png?imwidth=1280)
Raise the stalk switch further for the wipers to sweep at high speed.
Important
Before activating the wipers - ensure that the wiper blades are not frozen in, and that any snow or ice on the windscreen and rear window is scraped away.
Important
Use plenty of washer fluid when the wipers are cleaning the windscreen. The windscreen must be wet when the windscreen wipers are operating.