What Does the Light on Your Dashboard Mean?

Dashboard Warning Lights Illuminated
You’re driving back to the Lebanon area after a fun afternoon at one of St. Louis’ escape rooms, and a warning light pops up on your dashboard. Is this cause for panic? Probably not. Your Nissan is equipped with a host of attention-getting lights that alert you to potential problems with your car before they become big problems. Before you pull over in Mascoutah, take a look at what the different dashboard warning lights mean — and remember to check your owner’s manual, as it has the answer for every light on your dash.

Dashboard Warning Lights and Their Meanings

There are several categories covered by lights on the dashboard: engine, brakes, and informative/safety. Let’s break them down:


  • Service Vehicle: This could be caused by an electrical issue, like a low battery. Contact the Auffenberg Nissan service department. It may look like the outline of an engine or simply say “SERVICE ENGINE.”
  • Coolant Temp Warning: This light typically looks like a thermometer and means that there’s a problem that can lead to your engine overheating. Check your coolant levels, and make sure you don’t have a coolant leak. Malfunctioning fans can also prompt this alert.
  • Reduced Power Warning: This could mean that a component of your engine is malfunctioning. Get it checked as soon as possible.


  • Brake System: There is an issue with your brakes, including potentially low brake fluid. It could also indicate a problem with your ABS system, although some vehicles have a separate light for ABS.
  • ABS: If you see your ABS light come on while driving, it is usually no cause for alarm — it means your anti-lock brakes have been engaged. If it’s on or flashing when you start your car or when you aren’t braking, it needs investigating.


  • Traction Control: Indicates that you’re using the electronic stability system. In some vehicles, the light may come on when you’ve turned traction control off.
  • Cruise Control: Indicates that you’re using cruise control.
  • Washer Fluid Reminder: Your windshield washer fluid is low and needs to be refilled.
  • Fog Lamp: This light notifies you that your brights are on.
  • Security Alert: If your ignition switch is locked, or a door is left ajar, this light will indicate either the tech malfunction or alert you of the open door.
  • Airbag Fault: Typically you will see this light once the car is started, and it indicates that there is a fault in the airbag system. If you see this light, you will need to bring your vehicle in for service to ensure your safety.

Schedule a Service Appointment at Auffenberg Nissan

If any of the critical lights come on, schedule an appointment with the Auffenberg Nissan service center, anytime day or night from home in East St. Louis. From dashboard lights to Nissan’s origins, our team can help you learn everything you need to know!

Service Specials at Auffenberg Nissan

Military Discount

Military Discount
Your Service for our Service
10% OFF any qualified parts or service purchase at our facility. See Service Advisor for details.

Disclaimer: Most vehicles. May not be combined with any other offers or specials. Must present coupon when order is written. Plus tax & Supplies. Valid only at this dealership. Expires 9-30-2019

EXPIRES: 12/31/2020

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Auffenberg Nissan

1690 New Car Drive O'Fallon, IL

Phone: (618) 622-4521



Phone: (618) 622­-4646

1690 New Car Drive O'Fallon, IL


Phone: (618) 622­-4521

1690 New Car Drive O'Fallon, IL


Phone: (618) 641-0003

1690 New Car Drive O'Fallon, IL
38.5962638 -89.9565252
Auffenberg Nissan 38.5962638, -89.9565252.