Automobile solar radiation sensor (sunlight sensor)

The image depicts the dashboard area of a passenger vehicle, specifically highlighting the solar radiation sensor, often called a sunlight sensor. This small, dome-shaped component is typically located near the defrost vents on the dashboard top. Its primary function is to measure the intensity of sunlight entering the vehicle, allowing the automatic climate control system to adjust air conditioning output and fan speed to compensate for solar heating.

Because this component is integrated into the vehicle's original equipment manufacturing (OEM) design, its specific brand and origin depend on the car manufacturer. Major automotive electronics suppliers like Denso, Bosch, and Valeo produce these sensors globally. These components are manufactured in multiple countries across Asia, Europe, and North America, corresponding to where the vehicle's assembly plant is located. The brand and ultimate ownership of the part are synonymous with the vehicle brand itself or its primary Tier-1 technology partners.