What Does the Blue Light on my Subaru Dashboard Mean?

by parker
YouTube video


One common question that Subaru owners often ask is, “What does the little blue light on my dashboard mean?” In this article, we will provide a detailed explanation of the meaning behind the blue light and its significance when starting your Subaru. Understanding this indicator light will help you operate your vehicle more effectively, especially during colder weather. So, let’s dive in!

The Blue Light Indicator

When you start your Subaru, especially in cooler temperatures after the car has been sitting overnight or for an extended period in a parking lot, you may notice a small blue light come on near your RPM gauge. This blue light indicates that your engine is cool and hasn’t reached its optimal operating temperature yet. It’s important to note that Subaru models like the Crosstrek, Forester, and Impreza do not have a traditional temperature gauge on the dashboard. Instead, the blue light serves as an alternative indicator for engine temperature.

Understanding the Blue Light

If the blue light turns on, it does not necessarily mean that there is any immediate danger or that you will damage your vehicle by driving it. However, it is advisable to avoid driving too aggressively until your car has had a chance to warm up. The purpose of this light is to notify the driver to take it easy and let the engine gradually warm up before pushing the car to its limits. Once your Subaru’s engine warms up and all the fluids reach their optimal operating temperature, the blue light will automatically go off. This serves as a signal that you can now turn on the heater, knowing that warm air will be blowing.

Importance of Engine Coolant Temperature

Proper engine temperature is crucial for the optimal performance of your Subaru as it ensures efficient combustion and prevents overheating. While the blue light indicates that the engine is in the initial stages of warming up, it’s essential to keep an eye out for any deviations from the norm. If the blue light ever turns red, it means that the engine has become too hot, and immediate action is required. In such a situation, it is vital to stop driving immediately and allow the engine to cool down. Pull over to a safe location and turn off the engine. If you notice smoke or steam emitting from the engine, it is a clear sign of overheating, and you should contact your Subaru dealer promptly to schedule a service appointment.


In conclusion, the little blue light on your Subaru dashboard is a helpful indicator to inform you of the engine’s cool temperature. When you see this light, it is best to take it easy and not drive too aggressively until your car has had a chance to warm up. Remember, once the engine reaches its optimal operating temperature, the blue light will turn off, indicating that your Subaru is ready for regular driving activity. Additionally, if the blue light ever turns red, it is imperative to stop driving immediately and allow your engine to cool down to prevent any potential damage. It’s always wise to promptly seek professional assistance from your Subaru dealer if you experience any issues or concerns.

Thank you for reading this article, and we hope it has provided you with a comprehensive understanding of the blue light indicator on your Subaru dashboard. If you found this information valuable, please feel free to explore more of our informative videos by clicking the link provided. You can also subscribe to our channel to stay updated on future videos. Have a fantastic day and safe driving!

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