Vehicle windows provide visibility and environmental separation via glazed panels within the cabin structure. Mechanisms range from manual regulators to powered systems with features like auto-up/down and pinch protection. Exterior mirrors utilize reflective surfaces and adjustable housings to provide driver visibility of surrounding traffic. Modern mirrors often integrate heating elements for defrosting and may include integrated turn signal indicators or blind spot monitoring systems. Side and rear window assemblies are typically bonded or mechanically fastened to the vehicle body, contributing to structural rigidity and sealing against the elements. Replacement requires adherence to manufacturer specifications for glass type, regulator function, and sealing compound application.