Nissan security light on 11

https://myenginewontstartnissanworks.fairmontdigest.com/posts/why-your-engine-won-t-start-nissan-common-causes-and-fixes

Seeing that little icon of a car with a key pop up on your Nissan's dashboard can be puzzling, but it's just your security system saying it's working. Usually activated after you lock the doors, that blinking red light means the car's immobilizer is armed, ready to prevent the engine from starting unless the proper key is used. It should turn off when you unlock and start the car; if it stays solid or won't stop blinking, there might be a glitch in the key fob or the security system.