Why does the wiper keep wiping automatically?

[ElliotAnn]

The reasons why the wiper keeps wiping automatically are: 1. The wiper fuse is blown; 2. The wiper motor is burned out; 3. The wiper switch is faulty; 4. The wiper blade is damaged; 5. The wiper linkage is broken; 6. The wiper circuit is faulty. The functions of the wiper are: 1. To remove raindrops and dust attached to the vehicle's windshield, improving the driver's visibility; 2. To use the wiper to determine the position of the wheels. The maintenance methods for the wiper are: 1. Clean the water on the wiper and windshield in time after washing the car; 2. Regularly check whether the wiper has cracks or damage; 3. Place the wiper upright when parking outdoors for a long time.

[VonClara]

Last time I drove, the windshield wipers kept activating automatically, which was really annoying. Usually, this happens because of an issue with the rain sensor—that small sensor on the windshield. If it gets covered by dust or dirt, it might mistakenly detect rain and trigger the wipers to move continuously. Another possibility is that the wiper switch is set to automatic mode but the sensitivity is adjusted too high, or the switch itself might be stuck or broken. Personally, I recommend first cleaning the sensor area at the top of the windshield; sometimes removing the dirt can restore normal function. If that doesn’t work, you’ll need to check the control module or wiring, such as for a short circuit or relay failure. Don’t underestimate this issue, as it can affect driving visibility, especially at night or in the rain when it’s hard to see the road, posing a major safety hazard. In my case, I tried resetting the car by disconnecting the battery, but it didn’t fix the problem—I ended up going to a repair shop to replace the sensor, and that worked. Always pay attention to vehicle maintenance, like parking away from dusty areas.

[OAnna]

Automatic wiper activation is quite common, with potential causes including sensor malfunctions or control circuit issues. For instance, if the rain sensor's sensitivity is improperly set, it may falsely detect rainfall signals and trigger the wipers. Additionally, short circuits in the vehicle's electrical system or mechanical jamming of the switch could also be culprits. From my personal inspection experience, first check if the wiper stalk is stuck in the auto position—try turning off the automatic function to observe the effect. If the wipers still operate, inspect whether the related fuse in the fuse box is blown or if connections are loose. A faulty control module might also cause erratic wiper behavior; in such cases, avoid DIY attempts to prevent exacerbating the issue and promptly consult a professional technician for diagnostic tool analysis. Remember, this phenomenon can distract drivers during rainy conditions, posing safety risks—early resolution is crucial. As a preventive measure, maintaining sensor cleanliness and regular vehicle circuit maintenance are recommended.

[VonPaige]

Don't panic when the wipers act erratically in rain—it's usually a setting issue or minor malfunction. The wiper switch often gets stuck in auto mode or triggers falsely due to aging. Sometimes, an oversensitive or dusty rain sensor causes false detection. Check if auto mode was accidentally activated and try lowering the sensitivity. Mechanically, common causes include aged wiring short circuits or relay failures. Start by cleaning the windshield sensor area; if that doesn't work, reset the car battery by disconnecting it briefly. For safety, get it repaired promptly to prevent accidents.