When testing the parking brake operation, what should be verified?

• A. Activation and holding capability of the parking brake
• B. Tire tread depth
• C. Battery charge
• D. Engine oil pan temperature

Answer: (A)

The test is about whether the parking brake can be engaged and actually hold the vehicle in place. The parking brake’s purpose is to secure the vehicle when parked, especially on a slope, so verification focuses on entering the engaged state and providing enough holding force to prevent movement. To check, activate the brake and confirm it fully engages—you should feel appropriate lever/pedal resistance and see any warning indicator if equipped. Then test that the vehicle cannot move when the brake is applied, such as attempting a light push or letting the car rest on a mild incline. If it slips or releases, the parking brake mechanism (cable, shoes, or electronic components) likely needs attention. Tire tread depth, battery charge, and engine oil pan temperature don’t directly assess the brake’s ability to hold the vehicle in place.