What does it mean when the key light flashes in the car?

[MacTyler]

When the KEY indicator appears on the car dashboard, it generally means the vehicle cannot detect the key. This situation commonly occurs in keyless start vehicles, as drivers typically don't need to turn a physical key to start the engine - they just need to have the key on their person or placed somewhere in the car. This may cause the engine to fail to properly receive and detect the key signal, triggering the warning. Below are more relevant explanations: The key KEY warning light (amber) may flash under the following four circumstances: 1. The key battery is dead (requires battery replacement). 2. The key is out of operational range or placed in a hard-to-detect location within the cabin (simply bring the key within operational range to resolve). 3. There's another manufacturer's key with similar frequency within the operational range (remove the similar key from another manufacturer from the operational area). 4. The key was taken outside the vehicle when the ignition was switched OFF, then all doors were closed (simply bring the key back inside the vehicle).