When parking on a hill facing uphill with a curb, you should:

When parked facing uphill with a curb, turn the front wheels away from the curb. The reasoning: if the vehicle rolls backward (the most common rolling direction when parked uphill), the rear of the vehicle drifts toward the curb on its own; the front wheels turned away from the curb mean the vehicle's front will steer away from traffic and into the curb. When facing downhill, turn the wheels toward the curb (vehicle rolling forward will be stopped by the curb). When parked on a slope without a curb, turn wheels toward the side of the road in both cases so a rolling vehicle moves off the road rather than into traffic. Also set the parking brake firmly and use 'park' (auto) or first/reverse gear (manual).