Which component is essential for providing feedback to the driver about wheel alignment?

The steering wheel is essential for providing feedback to the driver about wheel alignment because it directly connects the driver to the vehicle's steering system. As the driver maneuvers the vehicle, any misalignment in the wheels results in the steering wheel not returning to the center position, increased effort to steer, or a crooked steering wheel when driving straight. These feedback mechanisms help the driver recognize that the vehicle’s alignment may be off and requires adjustment.

Other components also play important roles in the steering and suspension system, but they do not directly communicate the status of wheel alignment to the driver in the same way that the steering wheel does. For instance, tie rods are crucial for linking the steering mechanism to the wheels, but they do not provide immediate feedback about alignment issues. Shock absorbers help control the vehicle's ride quality and stability but do not relate to the steering feel or alignment feedback. Control arms connect the suspension components but also do not inform the driver about alignment. Thus, the steering wheel serves as the primary interface for the driver regarding wheel alignment awareness.