I have a hitch mounted bike rack from Yakima. The RidgeBack model comes in a 2, 4 or 5 bike versions.
product link:
https://yakima.com/products/ridgebackproduct demo:
https://www.youtube.com/watch?v=HAPy7Tqf2SoIn the demo it says to tilt it down without bikes mounted. I have the 2 bike version and I tilt it down with 2 bikes mounted on it all the time. I suspect it might be heavy to lift back in place if 4 bikes are mounted.. I like that it doesn't wobble in the hitch if you tighten it down correctly,, and the 3 U-clips hold my bikes tight without wobble or vibration. And, they don't seem have any marks on the paint after hundreds of miles.
I originally bought it for my SUV which has a large rear hatch door,, but it works just fine for the rear storage door access as well. Another cool feature is the the rack folds flat. Note how it starts out flat in the video. It fits under my queen size bed on a PC2900,,,.if I want to store it inside.