What should you do if you lose your brakes while going downhill?

When you lose your brakes while going downhill, the most effective response is to pump the parking brake, put the transmission into the strongest gear, and gradually apply the parking brake. This approach helps control the vehicle's speed and allows for a safer descent.

Pumping the parking brake can help generate some braking force. Putting the transmission into the strongest gear also utilizes engine braking, which can assist in slowing down the vehicle. Gradually applying the parking brake provides additional resistance without locking the wheels, helping maintain steering control. This method maximizes your chances of safely stopping the vehicle while minimizing the risk of skidding.

Other options may not provide the necessary control or could potentially worsen the situation. For instance, turning off the engine could lead to losing the ability to steer, while using the emergency horn is not a practical solution for stopping the vehicle. Steering into a safe zone might not be possible depending on the terrain and conditions, and it also doesn't address the immediate issue of stopping the vehicle. Therefore, the second choice is the most effective method in this emergency situation.