Something strange happening with my Z

I want to start off with saying that my battery is brand new and there is currently no check engine light on.

This started happening about 2 weeks ago. I’ll be driving the car when randomly it feels like the throttle loses power and the car slows down. Simultaneously, my ABS, TCS, and brake light will come on. Additionally, I was listening to music when all of the sudden it cut out completely, and the little smaller interface right below the CD insert went black and turned off completely. This hiccup happened for about 5 seconds then the car continued the drive like normal.

This has happened 3 more times since, but that’s not the worst of it.

Yesterday, I took the car to get a car wash. Went through the wash, parked next to the vacuums. When I was done cleaning it and ready to go, the car wouldn’t start at all. Wouldn’t even turn over a bit. Like the battery died. I also heard the strangest noise coming from the center console while the car was completely dead. Sounded like some sensor or relay trying to turn on. It was kind of a buzzing/computer buffering sound. When I got out of the car and got back in it, I saw the Z light on my door sill randomly come back on, then I tried to start it again and sure as shit it started, completely random.

Today this time however, this same thing happened again, and I wasn’t so lucky this time. The car stayed dead. So I called a Lyft to get me back home but he had a battery pack and he offered to jump my car. It worked and the car started.

Again, brand new battery, and no check engine light. Does anyone have any idea what could be happening?