Which of the following is an indicator of a problem with the steering system?

A bent tie rod is a clear indicator of a problem with the steering system because tie rods are crucial components that connect the steering gear to the wheel assembly. If the tie rods are bent, they can affect the alignment and handling of the vehicle, leading to difficulties in steering and potentially causing unsafe driving conditions. This misalignment may result in uneven tire wear or erratic steering responses, making it critical to address any issues with tie rods promptly to maintain vehicle safety and performance.

Other potential issues mentioned, such as broken headlights, excessive tire tread wear, and worn brake pads, typically point to different maintenance concerns. While excessive tire tread wear can indirectly relate to steering problems if misalignment is involved, it is not a direct indicator of steering system failure. Similarly, broken headlights and worn brake pads are more related to visibility and braking efficiency, respectively, rather than steering issues.