Why does the fan on your Kia Sorento stay on permanently?

The fan on your Kia Sorento may stay on permanently due to a few potential reasons, such as a malfunctioning thermostat, a faulty temperature sensor, or an issue with the engine control unit (ECU). It could also be a result of the vehicle's design to prevent overheating, especially if the engine is running hot. Additionally, a stuck relay might be causing the fan to remain activated. It’s advisable to have a mechanic diagnose the issue to prevent further damage.