What is the plastic shell under the steering wheel called?

[VonBethany]

The plastic shell under the steering wheel is called the lower cover. Generally, you need to pry open the center control panel on the lower cover of the steering wheel, then open the driver's side door, and carefully remove the center control panel from the left side of the steering wheel. After adjusting the steering wheel upwards and unscrewing all the screws, you can remove this cover. The car steering wheel is used to control the direction of the vehicle. It is connected to the steering shaft via splines and functions to convert the force applied by the driver on the edge of the steering wheel into torque, which is then transmitted to the steering shaft. Using a steering wheel with a larger diameter reduces the hand force required from the driver when turning. In the past, hydraulic power steering was commonly used, but now most household vehicles are equipped with electronic power steering.

[LaArcher]

That plastic cover under the steering wheel, which I call the steering column cover, feels quite smooth when driving. It mainly covers the steering shaft and wiring to prevent dust from getting in and affecting steering. In older cars, metal was commonly used, but now it's all plastic for lightweight and cost reduction, making it easy to clean—just wipe it with a damp cloth. However, if it cracks or has gaps, rainwater can seep in and corrode internal components, leading to steering issues. I recommend having a mechanic check it during regular maintenance, especially if the car is parked outdoors in dusty areas.

[KendraAnn]

The plastic cover under the steering wheel is commonly referred to as a protective panel or cover plate. Its main purpose is to shield the important circuits and mechanical components inside from being exposed. After years of driving, I've found its design quite user-friendly—made of durable ABS plastic that resists wear. If it gets cracked from impact, it's crucial to replace it promptly, as small objects falling inside could jam and affect steering wheel operation. Attempting DIY repairs? Better not—consult a professional auto repair shop for inspection, and take the opportunity to have the entire steering system checked for peace of mind. When washing your car, avoid spraying that area too vigorously.

[DeEsther]

That plastic cover under the steering wheel is called the steering column trim panel. Simply put, it's a cover that shields the steering column and protects wiring. Mostly made of lightweight plastic, don't panic if it gets scratched or damaged - it doesn't directly affect driving. However, if it ages and develops holes, accumulated dust could wear down internal components. I personally inspect mine quarterly to ensure it's securely fastened without looseness.

[Ophelia]

The plastic layer beneath the steering wheel is called the shield cover or simply the trim cover. Its primary functions are dust prevention and aesthetics. I believe it's quite crucial—made of fragile material that breaks easily upon impact. If damaged and left unrepaired, it can accumulate water during rainy seasons, leading to rust and corrosion of the steering system, posing potential hazards. Regularly check for cracks while driving, and during maintenance, ask the technician to clean it. Replacement is inexpensive, costing less than a hundred yuan.

[Luke]

The plastic component under the steering wheel, commonly referred to as the steering column cover, is something I frequently pay attention to during maintenance. It serves as a thin protective shell to prevent hands from coming into contact with internal gears. Once deformed or cracked, it can lead to increased noise or affect the safety lock function. For cleaning, use a soft brush to remove dust, avoiding direct water spray. If it shows signs of aging, have it replaced at a shop. Don't overlook this small detail to prevent minor issues from escalating into major problems.