What steps should be taken if your brakes fail while driving?

When faced with brake failure while driving, the most effective response involves a series of controlled actions aimed at safely bringing the vehicle to a stop and avoiding a crash. Trying to downshift helps slow the vehicle by using engine braking, which can be an effective way to reduce speed without relying on the brakes. Engaging the parking brake can also assist in slowing down the vehicle; however, it should be applied gradually to avoid locking the wheels, which could cause a loss of control.

Additionally, steering carefully to avoid potential obstacles or collisions is crucial. This combination of downshifting, using the parking brake, and maintaining control of the steering allows a driver to navigate the situation more effectively and minimize risk to themselves and others on the road.

The other options suggest actions that are less effective or could lead to increased danger. Using the horn or emergency lights may alert others but does not contribute to stopping the vehicle. Exiting the vehicle immediately is typically unsafe, as it can put the driver at risk of being struck by their own vehicle or oncoming traffic.