
The radiator warning light coming on indicates that the water temperature may be too high. Check if the radiator is low on water (do not check immediately after turning off the engine to avoid high-temperature steam; wait until the radiator has cooled down before opening the cap). If the issue persists, there may be a leak in the radiator, and it should be inspected at a repair shop. Main components of the radiator: The radiator is part of the car's cooling system. In an engine's water-cooling system, the radiator consists of three main parts: the inlet chamber, outlet chamber, and the radiator core. Main functions of the radiator: When the engine's water temperature is high, the water pump circulates water to lower the engine's temperature, thereby protecting the engine. In winter, if the water temperature is too low, the water circulation stops to prevent the engine from becoming too cold.

I've been driving a Santana for many years. The red light near the radiator icon indicates an issue with the engine cooling system, such as overheating or insufficient coolant. When this light flashes, it's warning you that the car is about to overheat, and you must not ignore it. Immediately find a safe place to pull over, but don't turn off the engine—let the fan run for a few minutes to cool it down before checking. Look at the coolant level in the reservoir; if it's below the minimum line, you need to add coolant or pure water as an emergency measure, but be careful not to burn yourself. If the level is normal but the light is still on, it could be a broken fan, a leaking water pump, or a faulty sensor. Once, I didn't address it in time, and the engine nearly got ruined, costing thousands in repairs. It's best to head to a repair shop as soon as possible. During regular maintenance, pay extra attention to the coolant and pipes to prevent issues. Driving safety comes first—this kind of problem can easily lead to a breakdown.

When I drove my Santana, I encountered this warning. The red coolant light indicates an abnormal cooling system, especially dangerous when the water temperature skyrockets. Once it lights up, you should slow down and pull over, avoiding sudden braking. Check if the coolant level is sufficient, open the hood, and wait for it to cool before unscrewing the cap to add fluid. If the coolant level is fine, it might be due to a non-functioning fan or faulty wiring. Remember, driving with an overheated engine can lead to a blown head gasket—my friend had to replace his engine because of this. It's best to contact a mechanic for inspection promptly; delaying can cause more damage and cost more. Regularly checking the coolant level can reduce risks. Be cautious and avoid DIY repairs; leave complex issues to professionals.

The red light on the water tank in a Santana indicates a cooling system malfunction, usually signaling an overheating alarm. I must stop immediately to check the coolant level and top it up if low. Be careful not to open the cap when the engine is hot to avoid burns; check the fluid level between MIN and MAX after cooling. If the light remains on despite sufficient coolant, it could be due to a stuck fan, water pump issue, or sensor malfunction. Ignoring this may lead to cylinder head gasket failure, requiring professional repair. Regularly checking the system to prevent leaks is the best practice.