Car dashboard lights are designed to inform drivers about their vehicle’s condition, yet many people remain puzzled by a specific, boat-like symbol that appears unexpectedly. This light can leave drivers baffled, with some jokingly suggesting their car has entered “yacht mode” or is issuing a warning about approaching pirates.

Driving already requires attention to numerous factors like speed limits, fuel levels, and the dreaded dashboard warning lights. According to a survey by ATS Euromaster, 16% of drivers ignore these lights altogether. However, an even more striking statistic reveals that 80% of drivers don’t know the meaning of one crucial dashboard symbol.

You’re likely familiar with common lights like low fuel, tire pressure, or the check engine light. But what about the mysterious icon resembling a boat with wavy lines? For most, it’s a head-scratcher. Recently, this symbol gained attention when a driver posted an image of their dashboard on X (formerly Twitter), asking for help identifying the flashing light. The post, shared on December 29, 2024, went viral, racking up over 20.4 million views.

Internet users didn’t hold back, flooding the thread with humorous guesses. Comments ranged from “It’s in sailing mode. It should convert to a boat near water,” to “Hoist the mainsail—high winds ahead!” Others joked about the car warning of “Vikings” or “pirates,” while one suggested, “That’s your reward for driving. Redeem it for a cruise at the dealership.” Despite the creativity, none of these guesses were correct.

The boat-like symbol is actually the engine coolant warning light. Represented by a thermometer sitting atop wavy lines, this critical indicator warns of an overheating engine. Depending on the color—amber or red—the light signals different issues:

• Amber: Low coolant levels.
• Red: Dangerously low coolant levels or an overheating engine.

When this light illuminates, it’s the car’s way of saying, “I’m getting way too hot!” Ignoring this warning could lead to severe engine damage or costly repairs.

Here’s what the engine coolant light might be indicating:

1. Low Coolant Levels: Coolant helps regulate engine temperature. Running low can cause overheating.
2. Coolant Leak: Cracks in the radiator or hoses can allow coolant to escape.
3. Faulty Thermostat: A stuck thermostat can block proper coolant flow.
4. Radiator Blockages: Dirt, debris, or corrosion may obstruct coolant circulation.
5. Water Pump Failure: Without a working water pump, coolant can’t circulate effectively, leading to heat buildup.

If the engine coolant light comes on, follow these steps to avoid serious damage:

• Pull Over Safely: Stop the car as soon as it’s safe and turn off the engine. Driving with a red light can severely damage the engine.
• Let It Cool: Allow the engine to cool before opening the hood. This prevents burns or injuries from hot coolant.
• Check Coolant Levels: Inspect the coolant reservoir and add coolant if it’s low. Use the correct type of coolant specified for your car.
• Look for Leaks: Check under the car for any coolant puddles that could indicate a leak.
• Call a Mechanic: If you’re unsure or notice persistent issues, contact a professional mechanic for assistance.

Ignoring the engine coolant warning light can result in extensive damage or even require replacing the engine. By understanding the meaning of this symbol, you can save time, money, and stress while ensuring your vehicle stays in top condition.

So, the next time you see that thermometer icon with wavy lines, remember—it has nothing to do with boats. Instead, it’s a crucial warning from your car, urging you to take action to prevent further damage.

Did you know the meaning of this mysterious dashboard light? Share your thoughts in the comments, and don’t forget to share this article with friends to help them decode their car’s dashboard symbols!