replace Nissan key battery 4
https://getfixnissankeysymboltips.inkharbory.com/posts/how-to-fix-nissan-key-symbol-on-your-dashboard
When the key fob for your Nissan starts acting sluggish or stops working altogether, it's likely time to swap out the battery. Most models use a common CR2032 coin cell found at any drugstore, and the replacement takes just a minute. Pop the fob open with a small flathead screwdriver or a coin slot, note the battery orientation, and snap the new one in. Your key will work like new again.