What to Do When the Low Coolant Temperature Warning Light Comes On?
2 Answers
Solutions for when the low coolant temperature warning light comes on are as follows: 1. Check if the coolant level in the auxiliary tank is too low: Open the engine hood and inspect the coolant level in the auxiliary tank. If the coolant level is below the MIN line, it indicates insufficient coolant, and you should add more. 2. Check if the cooling fan is constantly running; 3. Check if the thermostat is stuck open; 4. Check if the coolant temperature sensor is faulty: If the coolant level is adequate, the issue might be a faulty coolant temperature sensor. In this case, visit the nearest repair shop for maintenance or consider replacing the radiator.
The low water temperature warning light can be quite alarming, but don’t panic—safely pull over as soon as possible. This light typically indicates that the engine coolant temperature is too low, possibly due to extremely cold weather or a cooling system issue. After stopping, don’t turn off the engine immediately; let it idle for a few minutes to see if the light goes off. Meanwhile, check the temperature gauge on the dashboard—if the needle stays in the low range, there’s likely a system issue. Pop the hood and inspect the coolant level to ensure it’s above the minimum mark. If it’s low, top it up with water or antifreeze temporarily, but avoid overfilling to maintain the proper concentration. A stuck thermostat is a common culprit—it regulates coolant flow, and if jammed, it prevents the coolant from heating up, keeping the temperature low. This issue affects engine wear; prolonged low-temperature operation increases fuel consumption and damages the engine. So, head to a professional repair shop promptly. In winter, always warm up the car before driving. Regular maintenance should include cooling system checks—never ignore minor issues.
