What should you tell the examiner after performing the brake tests?

After performing the brake tests, informing the examiner that the lights and buzzers are working properly is essential because these components play a critical role in safety checks of a vehicle's braking system. Properly functioning lights indicate to the driver important operational information, such as whether the brakes are applied or if there is a malfunction warning. The buzzers serve as auditory alerts, enhancing driver awareness of issues that may arise during braking. Thus, confirming that both lights and buzzers are operational ensures that the vehicle is equipped to communicate effectively with the driver, contributing to safer driving conditions.

In the context of the other options, discussing the completion and success of the tests, or the status of the valves or pressure levels, does not emphasize the immediate safety communications that the lighting and buzzing systems provide. Addressing these elements ensures a comprehensive understanding of the vehicle's functionality beyond just the brake test results.