Final answer:
When parking uphill, turn your wheels away from the curb or to the left. When parking downhill, turn your wheels towards the curb or to the right.
Step-by-step explanation:
When parking uphill, turn your wheels away from the curb or to the left. This means your front wheels should be turned to the right. This way, if your car starts rolling, it will roll away from the curb and avoid hitting it. When parking downhill, turn your wheels towards the curb or to the right. This means your front wheels should be turned to the left. This way, if your car starts rolling, it will roll into the curb and not roll down further.