What is the plastic panel under the windshield called?

[SanClaire]

The plastic shells located at the left and right corners of the windshield under the wipers are called the windshield lower trim panels. Wipers, also known as windshield wipers or simply wipers, are devices used to remove raindrops and dust attached to the vehicle's windshield, thereby improving the driver's visibility and enhancing driving safety. Additional information: Due to legal requirements, almost all cars are equipped with wipers. Rear windows of vehicles such as hatchbacks and SUVs are also fitted with wipers. Besides cars, other means of transportation like trains and trams are equipped with wipers as well. Some engineering machinery, such as cranes, also have wipers installed.

[TeaganDella]

Last time I washed my car, I noticed the plastic panel under the windshield was a bit loose. When I asked the mechanic, I learned it's called the cowl panel, or professionally known as the hood rear trim panel. This part is mainly responsible for collecting rainwater and leaf debris flowing down from the windshield, preventing them from falling into the engine compartment and causing short circuits or corrosion. Normally, you should avoid letting dirt accumulate there. Regularly cleaning it with a soft brush can prevent water leakage issues and extend your car's lifespan. I've heard that on many older cars, this panel tends to crack and turn white due to prolonged exposure to sun and rain. Fortunately, replacement parts aren't expensive, and you can do it yourself without spending much at a repair shop. Avoid using a high-pressure water gun to clean it, as it can damage the hidden wiring underneath. Developing this habit can save you a lot of trouble. I sweep it whenever I clean my car weekly, and it works great.

[Heather]

In the automotive repair field, the plastic component beneath the windshield is commonly referred to as the cowl grille, known in Chinese as the rain gutter or trim panel. It serves to direct airflow and protect internal components. The design includes a small drainage outlet, and if blocked by leaves or mud, rainwater can seep into the cabin or affect the air conditioning system. I've noticed that after parking under trees in summer, it's essential to check this area regularly, using chopsticks to gently clear out debris. Made of ordinary plastic, it tends to deteriorate over time, often showing cracks after 10 years of use. Replacing it is straightforward, but it's crucial to opt for OEM parts to ensure a proper fit. Don’t overlook this area during car washes, as accumulated dust can make the entire region brittle. Keeping it clear not only prevents leaks but also enhances air conditioning efficiency, saving some fuel costs.

[DeArianna]

That piece of plastic is called a cowl panel or cowl board in automotive terminology, and its function is to block rain and debris. The cleaning method is very simple: use a soft cloth to wipe away surface debris. Regular maintenance can prevent water leaks.

[VonPenelope]

I've always thought this small component is quite important, called the rain gutter trim. It's the connecting part between the windshield and the hood. To extend its service life, it's recommended to inspect it every quarter. If you find leaves or bird droppings in the gaps, clean them with a fine brush and water to prevent dirt accumulation that could make the plastic brittle or even crack. My own car has been running for 5 years with no major issues thanks to this method. Additionally, after snow in winter, clear the snow promptly to avoid freezing and cracking. When replacing it, choose a time after rain to ensure proper drainage function. Usually, just a few minutes during car washing can take care of it—don't neglect these maintenance details for the sake of convenience.

[JuniperLee]

As a car enthusiast, I've noticed that the plastic panel under the windshield—known in the industry as the cowl panel—is often an overlooked detail. Many car modifiers choose to spray it with custom colors to match the body, enhancing the overall appearance. Its role is to collect rainwater and direct it to the drain pipes; when clogged, it can cause interior leaks or strange noises. I recommend a thorough cleaning every season change, using compressed air to blow out dust from small holes; if it yellows with age, there are specialized cleaners available online to restore its shine. After joining car communities, I also learned that treating the surface with UV-protectant spray can delay aging, saving both money and effort.