What should be checked for leaks in hydraulic brakes?

The correct answer emphasizes the importance of inspecting hoses and the reservoir when checking for leaks in hydraulic brakes. Hydraulic brake systems rely on pressurized fluid to function effectively, and any leaks can lead to a loss of braking power, which poses a significant safety risk.

By inspecting the hoses, you can identify any cracks, wear, or damage that might allow brake fluid to leak. Additionally, checking the reservoir ensures that the fluid level is adequate and that there are no leaks present at the connection points. Maintaining the integrity of the hydraulic brake system is vital for safe vehicle operation, making these checks essential.

In contrast, aspects such as checking engine performance, monitoring tire rotation, and observing gear shift do not directly relate to the hydraulic brake system. These elements are important for overall vehicle maintenance but do not address the specific concern of potential leaks in hydraulic brakes.