Some cars have a sensor in the reserve tank that sticks or the sensor on the engine is gone. Get a manual for you make and it will show the locations.
The coolant level sensor is bad. It is integrated into the coolant bottle, so you need to replace the coolant bottle.
There could be many reasons. Not enough coolant or bad flow, faulty thermostat, low oil. If the coolant freezes then it will overheat. If your car continues to overheat then you should have the coolant flushed and thermostat replaced.
Yes, low coolant will cause it to overheat without the AC; that is not the only reason that will cause overheating however.
Mine came on to tell me that the coolant was low. check that. Remember to use the right kind of coolant and don't mix different kinds.
The coolant is below add in the coolant recovery tank. The engine would not overheat because only the recovery tank is low. It is also possible the low coolant sensor is bad.
It willl overheat when it gets low on coolant.
Low coolant? Cooling system airbound? Low coolant? Cooling system airbound?
Low coolant perhaps, bad thermostat, low or old oil.
The low coolant level light turning on suggests that there might be a leak in the cooling system causing loss of coolant. It is important to check the coolant level, top it up if necessary, and inspect the system for any leaks to avoid potential overheating issues.
Low coolant, stuck thermostat, blocked hoses.
Add coolant to the reservoir. If the low coolant light still stays on, replace the low coolant sensor.
Could be a plugged or restricted radiator Low coolant? Water pump not circulating coolant?