What should you do if you experience brake failure while driving?

When experiencing brake failure while driving, the most effective response involves multiple steps to regain control and safely stop the vehicle. Pumping the brakes can help build up brake pressure if there is still some functionality left in the braking system. If this does not work, using the parking brake can provide an additional method for slowing down the vehicle. However, it's essential to apply the parking brake gently to avoid locking the wheels and causing a skid. Steering the vehicle to a safe area will help you avoid obstacles and minimize the risk of an accident as you bring the vehicle to a stop.

The other options are not practical or safe in situations of complete brake failure. Shifting to a lower gear may help slow the vehicle down in some cases, but it should not be the primary response since it relies on the brake system's effectiveness. Turning off the engine can lead to a loss of steering control, especially if power steering is involved. Accelerating to slow down is counterintuitive and dangerous, as it would increase the vehicle's speed rather than decrease it, putting the driver and other road users at greater risk.