NHTSA Complaint #11446636 — 2012 CHEVROLET EQUINOX

On dec. 29,2021 I started my car and while I was warming the engine(idle) the following lights came on: Engine,Break, ABS, TCS/StabiliTrak, Service All Wheel Drive, Service StabliTrak & all the gauges except the fuel were moving up & down. Also on the shifter the P was blinking. I turned the car off then sack on after a few seconds & it came on like normal I drove a few blocks made a stop in the corner store for a btl of water & when I got back into the car it wouldn’t start. When I turned the key to start it the dash would go completely dark when I’d let the key go the dash would come back on. Everything time I tried to start the car the dash would go out completely. I got the car towed to a repair shop but they were closed. When I went to the shop that morning I saw that they were closed Jan 1st. So I sat in the car & something said “try it” & the car started like nothing was wrong. I get 3 blocks and the same lights turn on again. I drive for 6 blocks to my parking space in my complex and park. I ended up having to move to let my wife out of the spot but the car wouldn’t start & the dash was doing the same thing from the night before so I put it in neutral and pushed it. Monday I walk to my parking spot & it starts up like nothing happened but the engine light was on so I drove to the mechanic. No lights came on just the engine light and the car has been with my mechanic since 1/1/22. After a few hours googling I found that this car fits the oil consumption issue. How do I go about getting this handled?