Noob Question

I’ve never really owned a car new enough to take to the dealer, I always just take it to the shop down the street.

I have a 2020 Leaf Plus with the following issues:

AC will occasionally shut off and require restarting the car. Then it’ll work fine.

“Door open” warnings lights when I take a left turn with a passenger in the car.

Volume knob fucked up.

So! My question is… do I just call the dealer and schedule an appointment like I would with Firestone or whatever? Do they usually do a loaner? Can I expect any of this stuff to be covered under the rest of the warranty?