Which of the following can lead to steering issues if the seals in the power steering system fail?

The choice indicating hydraulic failure as a result of seals in the power steering system failing is particularly pertinent because power steering systems rely on hydraulic fluid to assist steering. When seals fail, hydraulic fluid can leak out of the system, leading to a decrease in hydraulic pressure. This reduced pressure can make steering feel heavy or unresponsive, directly impacting the driver's ability to control the vehicle.

Power steering systems are designed to provide the necessary assistance for steering, and any failure in the hydraulic system can lead to difficult maneuverability and potential safety hazards. Maintaining the integrity of the seals is crucial for ensuring that the hydraulic fluid remains contained and that the steering system operates effectively.

The other options, while they may relate to vehicle maintenance and performance, do not directly indicate issues stemming from the failure of power steering system seals. Excessive tire wear is often a symptom of alignment or suspension problems rather than a direct consequence of hydraulic failure. Similarly, engine overheating typically involves cooling system issues, and brake issues are unrelated to the operation of the power steering system. Thus, hydraulic failure is directly linked to seal integrity in the power steering system, making it the correct answer.