Why Is My Hyundai Check Engine Light On?


Your Hyundai will let you know when trouble’s coming under the hood using its check engine light. But how urgent is the problem? And what is that problem, specifically? Those are the important questions that our service center is often asked by the owners of new vehicles and used vehicles alike. Truthfully, your check engine light can mean anything from a major engine issue to a loose gas cap. Let’s dive into some of the more common reasons and find out how and when to bring your car, truck, van, or SUV in for service.

Why Do I Have a Check Engine Light?

Hidden issues with your engine often manifest as a check engine light on your dashboard. Along with that light, a code is generated that can be displayed by a reader that tells you what the issue is. You can buy a code reader to check out what’s wrong with your vehicle right away, or you can bring it into the Suntrup Hyundai South service center for one of our experts to discern. Regardless, the right equipment will immediately tell you what the problem is and bring you to a faster resolution.

Why Is My Check Engine Light On?

The most common culprits for a check engine light in the St. Louis area might surprise you. It could be that your engine air filter needs to be changed, but these five are most often what triggers it:

  • Oxygen sensor
  • Catalytic converter
  • Mass airflow sensor
  • Spark plug wire
  • Gas Cap

Please note, a flashing check engine light indicates a severe issue that should be addressed by a licensed mechanic immediately. Most of the time, though, your engine light will typically appear as a steady amber, orange, or yellow glow. In these cases, just head to the garage as soon as you are available to do so.

Get Your Car in Shape at Suntrup Hyundai South

At Suntrup Hyundai South, we want to get your car into the best condition possible and back out on the road near Kirkwood. Whether you have a flashing check engine light or just need some routine maintenance, our expert technicians have the experience to help. Contact us with questions, and stop by our Affton area dealership today!

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5926 S Lindbergh Blvd • St. Louis, MO 63123

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Suntrup Hyundai South

5926 S Lindbergh Blvd St. Louis, MO

Phone: 877-562-0747



Phone: 877-445-5161

5926 S Lindbergh Blvd St. Louis, MO


Phone: 877-562-0747

5926 S Lindbergh Blvd St. Louis, MO


Phone: 844-848-9849

5926 S Lindbergh Blvd St. Louis, MO
38.5214875 -90.3452578
Suntrup Hyundai South 38.5214875, -90.3452578.