What should you do if your brakes fail while traveling down a long, steep hill?

When facing a brake failure while descending a long, steep hill, looking for an escape ramp or escape route is the most prudent action. Escape ramps are designed specifically for this critical situation; they provide a safe area for vehicles to slow down and stop in an emergency. These ramps typically consist of a gravel or sand surface that creates resistance, helping to decelerate the vehicle in a controlled manner.

Finding an escape route can prevent accidents and injuries that would result from losing control of the vehicle due to insufficient braking power. Utilizing these ramps can be lifesaving, particularly on steep gradients where braking systems may overheat or fail entirely.

The other options have their own merits in different contexts, but they may not be the best immediate response to a brake failure situation. For instance, using the emergency brake can potentially lead to a loss of control or a skidding situation, while turning off the engine may reduce power steering and brakes, making the vehicle harder to control. Searching for a safe place to park might not be practical or effective in a rapidly deteriorating situation, especially if no suitable location is available before a collision occurs.