How does a kanban pull system work in automotive manufacturing?

Kanban is a pull system where downstream processes signal upstream processes to produce or deliver. Implementation: Parts containers carry kanban cards specifying part, quantity, and source/destination; empty container triggers replenishment; work-in-process limited to kanban quantity; visual signals indicate status. Types include production kanban (authorize making parts), withdrawal kanban (authorize moving parts), and supplier kanban (external delivery signal). Benefits: Prevents overproduction, exposes problems, reduces inventory, and synchronizes production. Implementation requires stable demand, reliable processes, and supplier capability. Electronic kanban (e-kanban) enables real-time signals and tracking.