Rating Newest Oldest. Best Answer: Downhill: Turn toward the curb (whether the actual curb is there or not). Uphill WITH a curb: Turn the wheel away from the curb. Then allow the car to roll back and hang up on the curb. You must be positioned to within 1 foot of the curb. This prevents the car from rolling into live traffic on the street. Uphill WITHOUT a curb: Turn the wheel toward the non-existent curb.