What is the first action you should take if your brakes fail while driving?

Answer: B — Pump the brakes, downshift gears, and use the parking brake if needed

If your brakes fail while driving, the first action you should take is to pump the brakes, downshift gears, and use the parking brake if necessary. This sequence of actions helps in several important ways. Pumping the brakes can sometimes build up enough pressure in the brake lines to regain some braking ability, especially if the brake fluid is low. Downshifting helps to slow down the vehicle by using the engine's resistance, which can be particularly effective in reducing speed without relying solely on the brakes. Engaging the parking brake can also provide a means to gradually slow the vehicle down. It's important to use the parking brake carefully, as applying it too suddenly can cause the vehicle to skid. Maintaining control of the vehicle is crucial during a brake failure situation, and this method provides a systematic approach to managing the emergency safely rather than immediately steering off the road or stopping abruptly, which could lead to loss of control.