My "service engine soon" light came on while I was driving, I used my friends OBD2 Scanner and a code that says " P2900 " came up. Tried searching it up online but nothing came up. Anybody have any ideas on what this code might be? And is it something I should be worried about as well?

 

Might run by an Autozone, Oreillys, etc and see if they can pull up your code, it's free and you might have gotten something erroneous off your friends' code reader since P2900 isn't showing up anywhere.