Final answer:
When parked on a steep hill, engage the parking brake and turn the wheels towards the curb. For automatic vehicles, make sure the transmission is in park.
Step-by-step explanation:
If you have parked your vehicle facing down a steep hill, you should engage the parking brake. This will help prevent your vehicle from rolling down the hill if the transmission fails. It is also a good practice to turn the wheels of your vehicle towards the curb when parking on a hill. Turning the wheels will create an additional barrier and make it more difficult for the vehicle to roll downhill.
For automatic vehicles, it is important to make sure the transmission is in the park position. This will prevent the vehicle from moving when the parking brake is disengaged. Leaving the transmission in park ensures that the vehicle is secure and will not accidentally shift into gear.
By following these precautions, you can avoid accidents and ensure the safety of your vehicle when parked on a steep hill.