Driving is a skill that comes with a surprising amount of responsibilities, from understanding road signs to knowing what the myriad symbols on your dashboard mean. But let’s face it—most of us don’t have a clue about half of those icons until they light up.

One symbol, in particular, has left a staggering 80% of motorists scratching their heads, according to a survey by ATS Euromaster. The symbol, often described as looking like a “boat,” is actually much more important than it seems.

Hint: It's not one of these (Getty Stock Images)

If you’ve ever been puzzled by this dashboard light, don’t worry—we’ve got you covered.

What’s the Mystery Symbol?

The symbol in question isn’t a boat or a warning about pirates (despite some hilarious online commentary). It’s actually the engine cooling warning light.

The icon typically resembles a thermometer floating above wavy lines, indicating that your car’s engine temperature is too high.

This warning light signals a critical issue:

Your engine might be overheating
You could be low on engine coolant

If ignored, this seemingly harmless light could result in severe engine damage and costly repairs.

Why Drivers Are Confused

For many drivers, the infrequency with which certain symbols appear makes them difficult to remember. Unlike familiar warnings such as the low fuel or tire pressure light, the engine cooling warning doesn’t show up often—until there’s a problem.

On social media platforms like X (formerly Twitter), users shared their confusion and theories:

One user posted, “What does this light mean?” alongside a photo of the symbol.
Another jokingly responded, “Looks like a boat. Probably smooth sailing or something.”
A third quipped, “That’s the ‘pirates approaching’ warning. Better start paddling.”

You'll end up with your car in ruins if you ignore it (Getty Stock Images)

While the humor is entertaining, the reality of the situation is far less funny.

What Does the Engine Cooling Light Actually Mean?

When this symbol lights up, it’s a sign that your engine temperature is too high. According to specialists at Eden Motor Group, the problem usually stems from one of two main causes:

Low Engine Coolant Levels:
- Your car’s coolant might have leaked, possibly from a split hose, a damaged radiator, or another part of the system.
- To check, pop the hood and inspect the coolant tank. Look for the maximum and minimum markers to ensure the coolant is at an adequate level.
Faulty Sensor:
- Sometimes, the issue isn’t with the coolant itself but with the sensor detecting the engine temperature.

What to Do If the Light Comes On

If you notice the engine cooling warning light on your dashboard, don’t ignore it. Here’s what you should do:

1. Stop Driving Immediately

If the light turns red, pull over as soon as it’s safe to do so and turn off the engine.
Continuing to drive with an overheating engine can lead to severe damage.

2. Check Coolant Levels

Open the hood and inspect the coolant reservoir. If levels are below the minimum marker, your engine may be overheating due to insufficient coolant.
Refill the coolant if you have some on hand, but only do this after the engine has cooled down. Never open the coolant reservoir while the engine is hot—it could cause burns.

3. Look for Leaks

Check for visible leaks around hoses, the radiator, or under the car.
If you notice any, it’s best to have a professional inspect the vehicle.

4. Call for Help

If you’re unsure about what’s causing the issue or can’t resolve it yourself, contact roadside assistance or take your car to a mechanic.

Prevention Tips

To avoid being caught off guard by this warning light:

Regularly check your coolant levels: Make it a habit to inspect the reservoir every few weeks or before long trips.
Get your car serviced: Routine maintenance can help identify potential cooling system issues before they become serious.
Keep coolant on hand: Having extra coolant in your car can save you in emergencies.

What this light mean? pic.twitter.com/cgabbCqYml
— Vivian Mayer (@mysty812) December 29, 2024

The Importance of Understanding Dashboard Symbols

Dashboard symbols are designed to alert you to potential issues before they escalate. While some, like the low fuel light, are straightforward, others can be more complex.

Learning these symbols can save you from costly repairs, enhance your driving safety, and prolong the lifespan of your vehicle.

If you’re ever in doubt, refer to your car’s owner manual or consult a professional.

Final Thoughts

The engine cooling warning light is no laughing matter, despite the internet’s jokes. It’s a critical indicator that something is wrong with your car’s cooling system, and addressing it promptly can save you time, money, and stress.

So, next time you see the “boat-like” symbol light up, you’ll know exactly what to do. Your car—and your wallet—will thank you!