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Will the check engine light reset itself?

The check engine light on your Hyundai Sonata will usually shut itself off if the issue or code that caused it to turn on is fixed. For example, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will turn itself off. Likewise, if your catalytic converter is going functional, and you did a lot of stop-and-go driving, that may have turned on the check engine light due to the high usage of the converter. In most cases, your Hyundai Sonata light will go off after about 20-40 miles. If you drive over that amount and the light is still on, you will need to bring it in to Nalley Hyundai so the light and code can be double-checked and reset.

Check Engine Light Service Hyundai Sonata

What do you do when you’re driving along in your Hyundai Sonata and suddenly, a yellow light illuminates on your dash and says "Check Engine". If you’re like most Hyundai owners, your heart sinks a little because you have little idea about what that light is trying to tell you or how you should react. The fear of the unknown (or the cost of the unknown) can be just as stressful. But take a deep breath and realize the light coming on doesn’t mean you have to pull the car over to the side of the road and call a tow truck, but it is recommended that you get your Hyundai Sonata checked as soon as possible. Ignoring that warning could end up causing major damage to expensive engine components.

When your Hyundai Sonata's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the electronic control system that it can’t correct, a computer turns on your check engine light. This amber or yellow light is typically labeled “check engine” or “service engine soon”, or the light may be nothing more than a picture of an engine, or a picture of the engine with the word “check.”

When the light turns on, the ECM stores an engine code or “trouble code” in its memory that identifies as the issue, whether it's a sensor or a failing engine part. This code is read with an electronic scan tool that is used by our Hyundai auto repair mechanics at Nalley Hyundai. There are also a number of relatively inexpensive code readers that are designed for do-it-yourselfers, should you choose that route too. While this code will tell you the issue that is detected, a true diagnosis still requires an experienced professional to determine the issue and repair it.

Hyundai Sonata Check Engine Light

A glaring light expresses that the problem is thoughtful and if not taken care of quickly may result in mammoth damage to the vehicle. If the check engine light in your Hyundai Sonata starts glaring, that means that the problem needs immediate attention and your Hyundai should be brought in quickly. This blinking light usually indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system. There it can quickly raise the temperature of the catalytic converter to a point where damage is likely, requiring an expensive repair. Some owners ask if spark plugs cause the check engine light to flash? This can absolutely be the cause. A bad, old or dirty spark plug can cause the engine to misfire. If the problem is ignored or you continue to drive, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to a incredibly expensive repair. If your check engine light is flashing, please contact our team of automotive experts at Nalley Hyundai urgently by calling 7709990443.

What could cause the check engine light to come on in a Hyundai Sonata?

When your check engine light comes on, this could be as simple as tightening or replacing your gas cap. Likewise, the check engine light could also be a warning of a serious problem that could cause serious damage to your engine and come with a hefty repair bill. Depending on your make and model, the check engine light will illuminate or blink. A steady glow typically means something less serious but a flashing check engine light indicates that your vehicle’s engine is in serious trouble and service is needed immediately. If your check engine light is flashing in your Hyundai Sonata, we highly recommend not to drive the vehicle and schedule Hyundai service today. Below is a list of the most common reasons your check engine light can come on:

  • New Spark Plugs or Plug Wires are mandatory for your Hyundai Sonata. The spark plugs are the part of your engine that ignites the air/fuel assortment in the combustion chamber of your vehicle. This explosion is what moves the pistons and makes the engine run. The spark plug wires deliver the spark from the ignition coil to the spark plugs. If you're spark plugs or spark plug wires are bad or erstwhile, you will experience low performance and reduced power. In some extreme cases, your engine will have trouble starting or continuing to run. Worn spark plugs and plug wires can cause clogged catalytic converter or damage to ignition coils and O2 sensors, best to more expensive repairs.
  • So what happens if I don’t replace your O2 sensor? A faulty sensor can not only affect your miles per gallon, but it can cause damage to your catalytic converter and your Hyundai Sonata's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to imply the decent assortment of air and fuel that enters the cylinders in your engine. A bad O2 sensor can also cause a vehicle to fail an emissions test.
  • The battery is low or dead. The battery in you Hyundai Sonata every essential. Without a vehicle battery, your vehicle won’t start, light up the road ahead, play the radio or charge your phone. Today’s vehicle batteries last much longer than they did a bit decades ago, and they don't surely require maintenance. The price of a new one depends on the type of Hyundai you drive, but check our accepted service coupons and specials.
  • Your catalytic converter is bad or going bad. The catalytic converter is a part of your Hyundai Sonata’s exhaust system. The catalytic converter's function is to turn the carbon monoxide created by the combustion process into carbon dioxide. A damaged catalytic converter is usually caused by neglected maintenance, which is why Nalley Hyundai offers a complimentary multi-point inspection with every Hyundai service. If you have an issue with your catalytic converter and don't get it repaired, your Hyundai Sonata will not pass an emissions test, show a lack of engine performance and will negatively affect your fuel economy. Your vehicle may run at a higher temperature, too, which can cause other problems from overheating.
  • Issues with all aftermarket items. An aftermarket alarm, exhaust or other item can wreak havoc on your Hyundai Sonata if it’s not installed correctly. These aftermarket parts and accessories can drain the battery, trigger the check engine light, or even prevent the vehicle from starting. If these issues sound prevalent, bring your Sonata to Hyundai and have our team of certified mechanics ensure that your aftermarket items were installed correctly and aren't causing all issue. Getting accessories, greatly aftermarket parts and accessories, or using OEM parts first place might cost a tiny bit more but could save you money from having to get low work and damage caused by low installation work corrected.
  • Your Hyundai Sonata has a vacuum leak. Every Hyundai Sonata has a vacuum system that performs a humongous assortment of functions. The vacuum system also helps reduce harmful emissions by routing the fumes as gasoline evaporates through the engine. If you notice that your RPM is high in idle or randomly surges, a vacuum leak could be the cause. Over time, vacuum hoses can parched out and crack, greatly if they’re exposed to intense heat or extreme agreeable.
  • Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, prevalent as the O2 sensor, measures the amount of oxygen in your exhaust system. If there is excess oxygen in your exhaust system, fuel burns faster and your vehicle will be fewer professional when it comes to fuel economy.
  • One of the most prevalent and many cause is that your Hyundai Sonata gas cap is loose, damaged or missing. The gas cap for your Hyundai Sonata serves multiple purposes. It prevents gas fumes from being released when you aren't driving, it seals the fuel system and helps maintain pressure within the fuel tank. What happens if you have a bad fuel cap? If your gas cap is erstwhile or has a ruptured seal, you can lose fuel through evaporation which will result in more trips to the pump. Luckily, to replace a gas cap isn't expensive. If your check engine light turns on immediately after you put gas in your Hyundai Sonata, first thing you should check is to make positive the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.
  • Your mass airflow sensor (known as MAF) needs to be replaced. The mass airflow sensor in your Hyundai Sonata is what determines how much fuel is mandatory to run your engine efficiently by measuring the amount of air entering the engine. As a part of the engine management system, the mass airflow sensor helps adjust to actual changes, like altitude. If your Hyundai Sonata is having trouble starting, idling rough or has a hasty change in the position of the throttle pedal, this could be a sign of a bad mass airflow sensor.

Is it safe to drive your Hyundai Sonata with the check engine light on?

This question is not very not difficult because it all depends on the severity of the issue. If the cause is a minor issue, such as a loose gas cap, it should be safe to drive. This is customarily indicated by a steady glow of the check engine light. If you notice a mixture in the performance of the automobile, it could be an indication of a more emotional problem. If the check engine light is flashing, this means that there is a emotional issue and it is recommended to service your Hyundai Sonata hastily. Call the veterans at Nalley Hyundai by dialing 7709990443 so you can describe the issues. Or reduce your speed and bring your Hyundai to our certified mechanics as soon as probable.

Hyundai Sonata Check Engine Light Flashing

Although there are countless potential causes of an illuminated Check Engine Light, we know from years of providing Check Engine Light Diagnosis Service that there are several common causes including something as simple as a loose gas cap. Other common reasons for a Check Engine Light are faulty emissions control part, dirty mass airflow sensor, a malfunction with the fuel injection system, damaged oxygen sensor, faulty head gasket, or defective spark plugs to name a few. No matter what is the root cause of the Check Engine Light, we have the Hyundai Certified Technicians and the certified service protocol to isolate the root problem and repair it as needed to restore factory specifications. When this happens, the Check Engine Light turns off, and you can leave the service center knowing that your Hyundai issue was fixed.

Every Hyundai Sonata was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the vehicle on its crucial systems. The sensors are continually detecting conditions while sending data to the electronic control unit. If the electronic control unit detects that the data is out of factory specifications, the Check Engine Light illuminates telling you that there is a problem. However, that is the limitation of the Check Engine Light – it won’t tell you what exactly is wrong nor what to do about it. That’s where we come in; Nalley Hyundai provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Highly Qualified Service professional.

How many miles can you drive with the check engine light?

If you check engine light is flashing, we suggest that you pull over and contact Nalley Hyundai to assist find out if your vehicle is safe to drive in or if we suggest a tow truck. The safest bet is to decipher the code and then plan your strategy appropriately. Since each check engine code has its own level of severity, it is troublesome to predict how many miles you can drive with the warning light on. It could be anything from a bad sensor to plug wires needing to be replaced.

Hyundai Sonata Check Engine Light Codes

The check engine light turning on can be quite intimidating to see that little light on your vehicle’s dashboard suddenly illuminates, but in reality, it is not something that should cause you to shut down in fear right away. If you hear the term, diagnostic trouble codes (DTC), these are just another name for check engine light codes. These are automotive computer codes stored by the ECM, also known as the OBD (on-board computer diagnostic system) in your Sonata. There are hundreds of different codes that your check engine light can represent. While that sounds daunting, with a little patience, tackling basic diagnostics will give you useful knowledge about your vehicle and will also allow that Check Engine Light to do what it is really supposed to do: be your guide. Unfortunately, obvious and helpful vehicle symptoms do not always accompany an illuminated Check Engine Light. Since there are hundreds of possible OBD codes, there are also hundreds of possible reasons for the light, including:

  • Old Battery
  • Loose Gas Cap or Missing Gas Cap
  • Transmission issues
  • O2 Sensor
  • Fuel and air metering systems problems
  • Emissions controls issues
  • Ignition system faults
  • Bad Spark Plugs
  • Computer output circuit issues
This is why it is important for someone who does not have a lot of automotive knowledge to not assume what a code means. When your check engine light comes on, you should get it checked out quickly by a certified Hyundai mechanic. If the engine light comes on due to a sincere concern, you risk damaging your car distinctive by not repairing the issue right away. Call Nalley Hyundai at 7709990443 hastily or schedule your check engine light service online today!

How much does it cost to get the engine light checked?

The check engine light warns of issues ranging from a gas cap that's not accordingly tightened to a more perilous failure like a bad catalytic converter or a problem with one of the car's oxygen sensors, so it favorable to get the common code reading and diagnosis. The average cost for a check engine light diagnosis & testing is generally between $88 and $111. The favorable news, Nalley Hyundai offers complimentary multi-point inspections and free diagnostics, in most cases, to help choice the cause of your check engine light.

What Does the Check Engine Light Mean?

One of the most commonly misunderstood lights or indicators in your Hyundai Sonata is the check engine light. The check engine light is part of the onboard diagnostics system, and displays in a few different ways. It can say "Check Engine", it can be a symbol of an engine, it can even be a combination of both. This light illuminates in either an amber or red color and is part of the diagnostics system found on your vehicle. Onboard computers increasingly have controlled and monitored vehicle performance since the 80s and do a variety of things for your Hyundai Sonata. Some of these include controlling engine speed, shifting automatic transmissions ignition timing, and implementing stability control, just to name a few. With that being said, the check engine light can mean a variety of different things. It can be as simple as your gas cap being loose or as serious as engine knocking. If your check engine light is on in your Hyundai Sonata, contact Nalley Hyundai. Contact Nalley Hyundai today! Our Hyundai service department can help you find out what code is turning your check engine light on or analyze why your check engine light is flashing.

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