immobilizer fault Nissan 2

https://storyquanta.com/s/yXsQm-LT3Pmma8gnRJaLz

I was driving my Nissan when a warning light popped up on the dash saying 'immobilizer fault Nissan.' I had to pull over because the car wouldn't restart after I stopped for gas. A quick search online showed it's a common issue with the key recognition system, often caused by a weak battery in the fob or a misaligned chip. I tried the spare key, and it worked, so I'll replace the main key's battery and see if that fixes the intermittent glitch.