What causes the key light to flash in the car?

[DeAlex]

The reasons for the key light flashing in the car are: 1. The car cannot detect the key; 2. The key battery is dead; 3. The key is not within the working range or placed in a hard-to-detect area inside the car; 4. The key was taken outside the car while the ignition switch was in the OFF position. During daily use, avoid remote controlling from long distances, as frequent long-distance remote control can affect the battery life, causing it to drain faster. Most cars equipped with a one-key start system can start the engine normally by placing the key at the inspection point when the key battery is dead. Vehicles with a one-key start system have a dedicated key inspection point inside the car, which is used when the key battery is dead.