Final answer:
When parking downhill parallel to the curb, you must turn your front wheels towards the curb to prevent the vehicle from rolling downhill.
Step-by-step explanation:
When parking downhill parallel to the curb, you must turn your front wheels towards the curb. This is called downhill parking with the wheels turned towards the curb. By doing so, the front wheels act as a safety measure to prevent the vehicle from rolling downhill if the parking brake fails.
For example, if you are parking on the right side of the road, you would turn your front wheels to the right, towards the curb. If the vehicle starts to roll downhill, the front wheels will hit the curb and stop the vehicle.
Remember to engage the parking brake as well when parking on a hill to ensure additional safety.