Trim panels are non-structural, interior vehicle components that conceal underlying mechanisms and wiring, while providing an aesthetic and protective surface. Commonly constructed from molded plastics, composites, or fabrics over rigid substrates, they are located throughout the cabin – doors, pillars, headliners, and dashboards being primary locations. These panels feature precise fitment to adjacent components, often secured via clips, screws, or adhesive bonding. Some panels integrate functional elements such as speaker grilles, switch ports, or ambient lighting provisions. Dimensional accuracy and surface finish are critical specifications, impacting both assembly and perceived quality.