What does it mean when the car key lights up red?

[VonSophia]

Here are the specific reasons why the car key lights up red: 1. It's a normal phenomenon: For some car models, pressing the car key will cause it to light up red, such as the Arrizo 5. 2. Accompanied by the car's failure to start and the dashboard not lighting up: If the car key lights up red and is accompanied by the car's inability to start and the dashboard not lighting up, the red light on the car key is due to the car's battery being dead. It might be because the headlights were left on when locking the car, causing the battery to drain. Replacing the battery can solve the problem. 3. Red backlight: It can be determined that the car key has been stained with color. If the car key cannot be used normally, it is recommended to use the mechanical key to open the car first.