Nissan Repair Questions? Ask a Mechanic for Answers ASAP
With the intellegent key system? do you have access to another key/fob to test if the security warning stops?
Does the key light go off once the car has been started or driven or does it stay flashing all the time?
Ok.. Given what what you have described..if the warning is no longer present once the engine has been started..then that will verfiy that the key is still been seen by the antena and the immobiliser system at least..as the key itself intelligent Key transmits radio waves to enable unlocking doors and activate push button start/stop..maybe try leaving the key a little closer to central console see if thats help.if not then i suspect given what ive seen before.is that maybe the battery within the key/fob itself is becoming low or is required to be changed or is in fact faulty..you maybe know that for sure once you try another key..but id say that might be the best thing to do or try at least is get the battery checked out within the fob..i note its 2019 model so the dealer would be your best bet plus they could do a quick scan on the vehicle to ensure there isnt anything suspect or logged in the module for immobiliser and faulty beyond the key itself..