Obviously, if not put into P (PARK), then yes.
you are going to crash the car of it will roll away
a few inches is normal at first when shifting but if it continues to roll the parking gears are probally broken
Yes, most definitely it will roll down the hill. When parking on a hill always set the parking brake. The park gear in an A/T can break, so do not take a chance. In drive the car will roll if the brake is not set.
Turn the wheel so that the car will roll away from traffic.
so if on an angle it won't roll away with your car
Yes
Turn your wheels away from the curb, that way if the car somehow starts to roll, the wheels will hit the curb and stop it.
It is normally considered safe to do so on a level or slightly inclined surface. If it is on a hill, you should use the parking brake as a precaution. Having said that, it is against the law in San Fransisco to park your vehicle on a hill without the wheels turned toward the curb. If the car were to slip out of park, it would roll to the curb and stop. San Francisco has cars that roll away on a daily basis in that city.
yes leave it in gear as well just in case it fails if automatic turn wheels towards the curb if parking with the nose of car facing down the hill and away if the back of car is facing down the hill
you have to put your handbrake on and then it wont roll down the hill
so your car doesnt roll down the hill
The parking brake is on or the transmission (automatic) or the clutch (standard) has problems.