What does the flashing red key indicator light on the Nissan Sylphy mean?

[OJayce]

The red key symbol displayed on the Nissan Sylphy's dashboard alerts the driver that the remote key's battery is low and needs to be replaced. The steps to replace the key's battery are as follows: 1. Press the mechanical key unlock button on the remote. 2. Remove the mechanical key from the remote. 3. Use a tool to pry open the seam around the edge of the remote. 4. Separate the upper and lower shells of the remote. 5. Replace the internal button battery, ensuring the battery model is the same. 6. Reassemble the shells in the reverse order. 7. Reinsert the mechanical key.