2013 Hyundai Genesis Check Engine Light On

Resolve Check Engine Light Issues in Your 2013 Hyundai Genesis

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Emissions System
0%
60% chance it's
Something else
The most common reasons a 2013 Hyundai Genesis has a check engine light are an emissions system component, a sensor, or a catalytic converter.
  • Emissions System: A faulty emissions system component, such as an oxygen sensor or EGR valve, can lead to increased emissions and trigger the check engine light.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2013 Hyundai Genesis has a check engine light?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

A faulty oxygen sensor is one of the most common causes of a check engine light. Symptoms may include a decrease in fuel mileage, hesitation or misfiring from the engine, rough idling or even stalling. A faulty sensor may cause the vehicle to fail an emissions test.

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

Due to the nature of electrical systems on modern vehicles, the range of problems these can cause are nearly limitless. However, there is a way to categorize them in two ways. Permanent and intermittent problems. Permanent problems appear and remain. This may be the vehicle will not start, the radio does not work, or the door chime will not turn off among many, many others. These problems are more straight-forward to diagnose since they present themselves at all time. This means there will always be a fault to find. Intermittent electrical problems, however, can be difficult or impossible to locate, since they appear then disappear without warning. The best case scenario for an intermittent issue is when replicating the problem is easily accomplished and understood. This allows a technician to make an issue semi-permanent, allowing them to find the fault. Other issues that come and go without warning and cannot be replicated on demand must occur when the technician is servicing the vehicle, otherwise there is no problem to correct. It is most important to understand that electrical system faults always require inspection, and can include the vehicle working in any manner, or not working at all.

Like we noted in the last section, general diagnosis symptoms are the most vague of the bunch. There are several diagnostic spectrums, electrical diagnosis, drivability diagnostics, engine diagnostics, transmission diagnostics, and the list could continue for about 5 or 10 more spectrums of diagnostics. The most important take-away here, is that general diagnostics are diagnostics that have no other spectrum in which they fit, or the problem is unknown. This means that any vehicle left outside of a repair facility with the keys and an authorization to perform diagnosis will be diagnosed under the general diagnosis spectrum.

When the Check Engine Light comes on, you may experience engine performance issues such as poor acceleration, rough idling, or an engine that won't start. In some cases, no abnormal symptoms will be experienced. Other systems like the transmission or ABS can cause the Check Engine Light to illuminate and lights for those systems can come on at the same time. Similar lights may say "Check Engine Soon", "Malfunction Indicator Light" or just "Check". In rare case the engine can overheat.

What are the initial diagnostic steps to take for a check engine light on a 2013 Hyundai Genesis?

When the check engine light illuminates on your 2013 Hyundai Genesis, the first step in your diagnostic approach should be to check the gas cap. A loose or damaged gas cap is a common culprit and can often be easily resolved by ensuring it is securely tightened or replaced if necessary. Next, observe the behavior of the check engine light; a steady light may indicate a minor issue, while a flashing light signals a serious problem that requires immediate attention. If the light is steady or intermittent, consider using an OBD-II scanner to read the trouble codes from the vehicle's onboard computer. This tool can help you identify specific issues related to components like the oxygen sensor or ignition system. Once you have the trouble codes, research their meanings to understand potential problems. If the diagnosis becomes overwhelming or if the codes indicate a more serious issue, consulting a professional mechanic is advisable to ensure proper repairs and prevent further damage to your vehicle. By following this structured approach, you can effectively troubleshoot the check engine light and take appropriate action.

What are the common problems that could cause the check engine light to illuminate in a 2013 Hyundai Genesis?

When the check engine light illuminates in a 2013 Hyundai Genesis, it can signal a range of issues that vary in severity. One of the most common culprits is a loose or faulty gas cap, which can lead to fuel vapor leaks and reduced fuel pressure. Another frequent issue is a failing catalytic converter, particularly in higher mileage vehicles, which can clog and negatively impact both fuel economy and performance. Additionally, a malfunctioning oxygen sensor can disrupt the air-fuel mixture, causing the engine to run inefficiently. Deteriorating spark plugs or spark plug wires may also lead to engine misfires and reduced performance, while a faulty mass air flow sensor can further complicate the air-fuel balance, resulting in poor engine efficiency. Other potential triggers include issues with exhaust gas oxygen sensors and various other sensors like the coolant temperature and throttle position sensors. It's important to note that a blinking check engine light typically indicates a serious problem that requires immediate attention, whereas a steady light suggests a less urgent issue that should still be addressed. For accurate diagnosis, using an OBD-II scanner to read the diagnostic trouble codes (DTCs) is essential, allowing DIYers to pinpoint the specific problem and take appropriate action.

How urgent is it to address the check engine light on my 2013 Hyundai Genesis?

When it comes to your 2013 Hyundai Genesis, understanding the urgency of the check engine light is crucial for maintaining your vehicle's health and safety. A steady check engine light, while less alarming, should not be ignored; it often points to issues that, if left unaddressed, could escalate into more significant problems, potentially leading to costly repairs. Simple fixes like a loose gas cap or a faulty oxygen sensor may seem minor, but they can affect your engine's performance over time. On the other hand, a flashing check engine light is a clear signal that immediate action is required. This indicates a serious engine misfire, which can lead to unburned fuel damaging the catalytic converter if you continue to drive. In such cases, it’s best to stop driving and seek professional help to prevent further damage. Additionally, if you experience any performance issues alongside the check engine light, such as unusual noises or reduced power, it’s essential to diagnose the problem promptly. Using an OBD-II scanner can help you read the trouble codes and identify the specific issue, allowing you to take the necessary steps to resolve it. Ultimately, addressing the check engine light promptly not only ensures your safety but also protects your investment in your vehicle.

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2013 Hyundai Genesis Check Engine Light Causes & Fixes