What Causes the Key Light to Illuminate?

[LaDallas]

When the key warning light on the dashboard illuminates, it indicates a fault in the car's anti-theft system or an issue with the car key. Anti-theft system activation: If the remote key moves out of the vehicle's control range before the engine is turned off or the power is fully shut down, the vehicle's anti-theft system will activate, causing the anti-theft indicator light to flash. This is a normal phenomenon. The car anti-theft system is designed to prevent the loss of the vehicle itself or items inside. There are five types of car anti-theft systems: key-controlled, remote-controlled, alarm-based, anti-theft alarm-based, and electronic tracking anti-theft. Low key battery: An unstable remote key signal may cause the key indicator light to flash continuously. This situation is usually caused by low battery power in the key, which triggers a dashboard warning. It is recommended to replace the key battery and clean the battery contacts.