- Low coolant level: This is the most common cause of the low coolant light staying on. Check the coolant level in your car's coolant reservoir and add more coolant if necessary.
- Faulty coolant sensor: The coolant sensor is responsible for sending a signal to the car's computer when the coolant level is low. If the coolant sensor is faulty, it may be sending a false signal to the computer, causing the low coolant light to stay on.
- Faulty wiring: The wiring between the coolant sensor and the car's computer may be damaged, causing the low coolant light to stay on.
- Head gasket leak: A head gasket leak can cause coolant to leak into the engine, causing the coolant level to drop and the low coolant light to stay on.
If you are unable to determine the cause of the low coolant light staying on, it is best to have your car inspected by a qualified mechanic.
