What is the name of the panel under the trunk?

[Bryce]

In the trunk of a hatchback, the movable panel on top is called the trunk cargo cover. The cover serves safety and privacy purposes, preventing items in the trunk from being ejected and causing injury during emergencies or on bumpy roads. Additionally, part of the cover is very flexible to facilitate accessing items in the trunk from the rear seats. Related information: Most SUVs and hatchbacks are equipped with a cargo cover in the trunk, which not only prevents items from being visible to outsiders but also stops luggage from scattering onto the seats while driving. Although the cover may seem small, it actually takes up considerable space, which can affect the placement of larger items. In fact, the cover can be removed when transporting bulky luggage—simply push both sides inward to detach it. For most models, applying force to one side is enough to remove the cover, while others are secured in a U-shaped groove and can be lifted upward for removal.

[DeHarper]

That panel is commonly referred to as the trunk guard plate or underbody protection panel. It is a metal or plastic component installed under the vehicle, primarily designed to protect critical parts such as the spare tire, exhaust pipe, and wiring from damage caused by flying stones, water splashes, or road debris during driving. Additionally, it provides thermal insulation, preventing the high temperature of the exhaust pipe from affecting items stored in the trunk, thereby enhancing the vehicle's overall safety and fuel efficiency. If this panel becomes deformed or its screws loosen, it may lead to unusual noises or expose the underbody to risks. I recommend regular inspections and, if necessary, replacing it with original manufacturer parts to ensure safe driving.

[SamanthaRose]

My car has this trunk guard plate, which effectively isolates dirt and dust during long-distance drives, keeping the trunk clean and dry. Once during an off-road trip, stones dented the plate, so I quickly reinforced it to prevent future issues. Though small, it plays a crucial role in preventing spare tire corrosion or tool contamination. Daily maintenance just involves simple cleaning or checking screw tightness. If damaged, the replacement cost is low and can be easily done by yourself.

[Barros]

In terms of vehicle safety, this protective panel is called the trunk shield. It can resist splashing attacks, protect the fuel tank and exhaust pipe from damage, and reduce the risk of fire or leakage. If missing, the chassis components are more susceptible to impact, affecting driving stability and increasing the probability of accidents. I have seen many old cars suffer from accelerated wear due to rusted and fallen shields. Therefore, regular vehicle inspections, including checks for its integrity, are crucial.