Can anyone here tell me what's going on with these flashing SES codes (video inside)
 

So I go to start my car while running errands and the SES light comes on.

No problem. I do the following:

Press the start button twice.
Wait 3 seconds
Push the accelerator 5 times
Take the foot off and wait for 7 seconds
Push the accelerator for 10-15 seconds
Release the accelerator (lights should flash)
Shut off the car . Start the car . The light should disappear.

But it didn't.

So I disconnected the negative terminal.
Waited for 60 seconds.
Reconnected the negative terminal.
The light disappeared.
Done.
Problem solved

Here's the video:

https://streamable.com/89t3b6

Out of curiosity, does anyone know what these codes mean?

Gas cap boyos