Subaru Impreza Blue Light on Dash on Startup

Why is that light showing up on the dashboard? How do I fix whatever it is telling me to fix to get the light to go away? There aren't a lot of perennial questions for cars, but everyone at some point has heard their car make a ding and had no idea why it was mad at them. Well, no longer! We have the top Subaru dashboard questions answered here, but have no fear: we've also answered the other ones!

Click whichever picture below fits the dashboard symbol you want to know more about to get the information you need about what it is and how to fix it or scroll down for the answers to our most-asked "what is that?" lights.

check engine ABS warning light - anti-lock brake system dash indicator looks like two parentheses around a circle with ABS in the middle brake warning light - looks like two parentheses around a circle with an exclamation mark in the middle all wheel drive AWD warning light vehicle dynamics control VDC warning light - looks like a car with swerving tire tracks vehicle dynamics control VDC OFF indicator light - looks like the back of a car with swerving tire tracks underneath with the word OFF at the bottom x-mode indicator light - looks like an outline of an SUV with bumps underneath hill assist warning light - looks like a car on a ramp or wedge cruise control indicator light - looks like a spedometer with an arrow on the outside cruise control set indicator light hill descent control indicator light - looks like a gauge with an arrow on the outside next to an SUV on a downward slope door open warning light - looks like a top-view of a car with the doors open power steering warning light - looks like a steering wheel with an exclamation mark next to it access key warning light - looks like a key with radio waves or the wifi symbol coming out of it headlight indicator light - looks like three stacked lines and an oblong capital D with a mirror image next to it high beam indicator light - looks like five stacked lines and a capital D automatic headlight beam leveler warning light - looks like four stacked slashes with an arrow on top and bottom next to a semicircle front fog indicator light - looks like three stacked slash lines with a wavy line through it next to a semicircle turn signal indicator lights - looks like a left arrow or a right arrow hazards - looks like three nested triangles gas tank indicator light - looks like a gas pump with a triangle or arrow on the right (triangle/arrow can be on right or left) low fuel warning light - looks like a gas pump windshield washer fluid warning light - looks like an anchor or like an arc with a dotted curly y oil pressure warning light - looks like an oil can or lamp with a drop engine low oil level warning light - looks like an oil can or lamp with a drop and wavy lines underneath AT oil temperature warning light - says AT OIL TEMP battery charge warning light - looks like a battery or like a rectangle with a - and + or like a Lego with a minus and plus seatbelt and passenger seatbelt dash lights SRS airbag warning light - looks like a circle in front of a belted, recumbent stick figure airbag and passenger airbag indicator lights - looks like a circle in front of a sitting, belted stick figure with the number two or says on; looks like a circle with an x through it in front of a seated, belted stick figure with a 2 or says OFF

coolant temperature high warning light - looks like a thermometer in water or like a key in waves or like a flagpole in some wavy lines TPMS warning light - looks like two parantheses around some bumps and an exclamation point icy road surface warning light - looks like a snowflake and a road, one guest said it looked like a snowflake in a tent

Coolant temperature warning light

coolant temperature high warning light - looks like a thermometer in water or like a key in waves or like a flagpole in some wavy lines

We have a whole bunch on this here, but the short version is:

When the light is blue, the coolant temperature is low. This is why it lights up blue when you start your vehicle. It will turn off when your engine gets to appropriate operating temperatures.
When the light blinks red, the coolant temperature is high. It means your engine is close to overheating and you should stop safely and manage the overheating.
When the light stays red, your engine is very likely overheating. You should deal with the overheating and schedule a service immediately before the engine is worsened by further overheating or irregular wear by warped parts.

Learn how to manage overheating.

Tire Pressure Monitoring System (TPMS) warning light

TPMS warning light - looks like two parantheses around some bumps and an exclamation point

What does this light mean?
When the ignition is turned to the ON position, the low tire pressure warning light will come on for about 2 seconds while checking the TPMSystem. If there is no problem, and the tires are properly inflated, the light will turn off.

If the light stays on or comes on during driving, it means you have at least one tire that is likely significantly underinflated. Underinflation leads to greater wear on the tread, decreased gas mileage, and can negatively impact handling and stopping.

The Subaru Tire Pressure Monitoring System also comes with a malfunction indicator. If the TPMS blinks for a minute then stays illuminated, then begins blinking again (and so on), that indicates a malfunction with the TPMS that could be for a number of reasons including a replacement wheel or tire that impairs TPMS's ability to function.

What should I do about that?
Each tire (including the spare) should be checked monthly when cold. They should be inflated to the inflated pressure recommended by your manufacturer. If you don't know what it is off hand and you don't want to bother flipping through your owner's manual to find how much air to put in, the driver-side door frame has a plate with the VIN and tire pressure or, like with this 2012 Outback, a plate with the VIN and a sticker with the recommended tire pressure for each tire. You'll notice that the tire pressure is higher up front because the front of the vehicle is under greater load, and the higher pressure compensates.

Properly inflated tires will make for a smoother ride, lengthen the life of your tires, and improve your gas mileage.

If the light doesn't come on for the two seconds it should when your car starts, if the light stays illuminated after you've thoroughly checked all your tires, or if the malfunction sequence occurs, you should get it into a shop to have your system inspected and repaired.

For more on TPMS, check out this post dedicated to it, and just as a reminder, TPMS should not replace normal tire maintenance.

Icy Road Surface warning light

icy road surface warning light - looks like a snowflake and a road, one guest said it looked like a snowflake in a tent

What does this light mean?
This light comes on if the temperature gauge registers a temperature at or below 37 degrees Fahrenheit / 3 degrees centigrade. This light is only available in certain models and certain packages. it will interrupt the information display for a few seconds before the display returns to normal.

What should I do about that?
Be aware that road surfaces may be icy, and you may want to drive with a little extra caution. Keep in mind that the temperature gauge only measures the air temperature around the gauge and may not necessarily reflect an accurate air temperature for you or the vehicle as a whole. Also keep in mind you should check driving conditions every time you get behind the wheel. This warning is just meant to be a little reminder.

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Source: https://www.stanleysubaru.com/blog/2018/august/23/what-is-the-light-on-my-dashboard-and-how-do-i-get-it-to-go-away.htm

Subaru Impreza Blue Light on Dash on Startup

Coolant temperature warning light

Tire Pressure Monitoring System (TPMS) warning light

Icy Road Surface warning light

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