You can move each individual parking spot up and down and left and right to get your car in and out.
Each parking place can be moved up and down and side to side to get a car in and out.
日本にどこでもある機械なのに、他の国ではほとんどまだ珍しいですね。
一つ一つの駐車場 = "each individual parking spot" / "each parking place"
上下左右 = up and down and side to side
出入りする = go in and out
が出入りする = get/drive your car in and out
ご参考になれば幸いです。