A tie rod is a crucial component in a vehicle's steering system. It connects the steering gear to the wheel assembly, allowing for precise control of the vehicle's direction. When the driver turns the steering wheel, the tie rod transmits that motion to the wheels, ensuring they turn accordingly. Tie rods are typically made of durable materials to withstand the stresses of driving. They are part of the suspension system and work alongside other components like ball joints and control arms to maintain stability and handling. Regular inspection of tie rods is important for safe vehicle operation.