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Rain sensor

What is a Rain Sensor?

A rain sensor is a device that automatically activates your windshield wipers when it starts to rain. It is usually located behind or next to the rearview mirror, and it uses a variety of technologies to detect rain, such as infrared light, optical sensors, or hygroscopic sensors.

When the rain sensor detects rain, it sends a signal to the car's computer, which then activates the windshield wipers. The speed of the wipers will vary depending on the intensity of the rain.

The rain sensor is typically turned on and off with a switch located on the steering wheel or dashboard. Keep the rain sensor clean to ensure that it works properly.

 It is important to turn off the rain sensor before going through a car wash, as the water from the car wash can activate the wipers and scratch the windshield.

Rain sensors are a convenient and easy way to improve your safety while driving in the rain. They can help to keep your windshield clear and your vision unobstructed, so that you can focus on the road ahead.

What is a Condensation Sensor?

A condensation sensor, also known as a humidity sensor, is a device that is mounted on the windshield behind and next to the rearview mirror. It detects moisture buildup on the inside of the windshield and redirects the airflow from the dashboard air vents to clear it up. This helps to improve visibility and prevent the windshield from fogging up.

The condensation sensor is typically located in a black box (enclosure) that houses the rearview mirror bracket. If you spot a vent at the bottom of the black enclosure, that is an aperture for the sensor to detect moisture.

If your car has a factory-equipped heated windshield, the condensation sensor will automatically trigger the defrost switch to ON mode. Once the moistness dissipates, the defrost switch will turn OFF automatically.

Here are some additional details about condensation sensors:

  • They are typically found in cars that are equipped with automatic climate control.

  • They can help to improve visibility in humid or rainy conditions.

  • They can also help to prevent the windshield from fogging up when you get in the car after it has been sitting in the sun.


If you are not sure whether your car has a condensation sensor, you can check your owner's manual or contact your dealership.

Condensation sensor

What is a Heated Windshield?

A heated windshield is a safety feature that helps to keep your windshield clear of ice, snow, and fog in cold weather. It works by using a network of thin wires embedded in the glass that heat up when electricity is applied. This causes the surface of the windshield to warm up, melting ice and snow and preventing fog from forming.

Heated windshields are especially useful in cold climates, where they can help to improve visibility and safety. They can also help to prevent wiper blades from freezing to the windshield, which can be a safety hazard.

In addition to defrosting the windshield, some heated windshields also have a condensation sensor that can detect moisture inside the cabin. If the sensor detects moisture, it will automatically turn on the heated windshield to help to dissipate the moisture and prevent fog from forming.

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