car key symbol blinking 4

https://nissanignitionlightplace.lowescouponn.com/what-the-nissan-ignition-on-light-means-and-how-to-fix-it

The car key symbol blinking on your dashboard means the security system hasn't detected your key's unique signal, so the car won't start—usually a weak battery in the fob or a sensor glitch. Try holding the key closer to the steering column; if it still blinks, you might need a new fob battery or a quick trip to a lock smith.