What to Do When the Dashboard Thermometer Light Comes On?

2 Answers
VonLawson
07/24/25 3:53am
When the dashboard thermometer light comes on, it indicates that the water temperature is too high. It is recommended to stop the vehicle and check if there is water in the radiator, then promptly proceed to a 4S shop for inspection and repair. Below is relevant information: Water Temperature Indicator Light: The water temperature indicator light primarily displays the temperature of the coolant inside the engine. It only lights up for a few seconds during the vehicle's self-check and remains off under normal conditions. What maintenance personnel often refer to as the engine "boiling over" means the coolant temperature has exceeded the specified value. In such cases, driving should be immediately halted for repairs. A lit thermometer indicates excessively high water temperature, and special attention must be paid to avoid further driving. Immediate maintenance and inspection are necessary to prevent significant damage to the engine.
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Foster
08/10/25 11:27pm
I remember one time when I was driving on the road, I suddenly saw the thermometer light on the dashboard come on, and my heart skipped a beat. This is an engine overheating warning, which must never be ignored. I immediately pulled over, turned off the engine, and let it cool down. After waiting for a while, I opened the hood to check the coolant reservoir, and the level was below the minimum line. I found a small crack in the hose that was leaking, so I added some purified water as a temporary fix. Later, when I went to the auto repair shop, the mechanic said the water pump was aging and needed to be replaced. Since then, I've developed the habit of checking the fluid level before every trip. Ignoring this light could lead to burning out the engine head gasket or even an explosion, which would be extremely costly. Regular maintenance should include checking the fan and water pump to catch problems early, saving money and ensuring safety.
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