Rear doors provide hinged access to the vehicle’s rear passenger compartment and cargo area, typically found on sedans, hatchbacks, and SUVs. These assemblies consist of a steel or aluminum frame incorporating glass, latching mechanisms, and integrated wiring for interior lighting and power features. Hinges facilitate rotational movement, secured to the vehicle’s body via welded or bolted mounts. Internal components include rollers, check links, and window regulators to ensure controlled operation and secure closure. Modern rear doors often feature integrated sensors for keyless entry and impact detection systems.