What Causes the Key Light on the Dashboard to Flash?

[DiNova]

When the key light on the car dashboard illuminates, it indicates that the car cannot detect the key. Possible causes include a malfunction in the key's transmitter module or a dead battery in the key. Malfunction in the key's transmitter module: Promptly inspect the internal wiring and perform necessary repairs. Dead battery in the key: Replace the battery immediately. Steps to replace the car key battery: Press the button on the back of the key to remove the mechanical key. Use an appropriate tool to remove the battery cover, revealing the battery. Remove the key battery for replacement. Avoid touching the internal circuits and electronic contacts, as this may cause malfunctions. Instead, hold the battery by its edges. Grabbing the battery across the contacts can significantly reduce its stored charge. When installing the new battery, ensure the positive side faces the bottom of the casing. Then, close the cover and test the key's functionality by pressing the buttons.