Hyundai Check Engine Light | Top 5 Causes for Each Model

Hyundai CEL FIXD Original Image
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Diagnose and clear your check engine light!

If possible, try to scan your vehicle. You can read your check engine light with or without a scanner and get an exact diagnosis rather than rely only on your powers of deduction. 

But, if you are on the side of the road and in a rush, this list of common causes for each Hyundai model should help you narrow down the most likely cause of your issue.

Take a look through the tables below for the most common causes for your Hyundai models’ Check Engine Light. If none of the causes below match the symptoms you’re experiencing or if you want a more in depth explanation of the common causes, go ahead and check out “The 13 Most Common Causes For A Check Engine Light | How To Diagnose Them”.

When you are ready to read your code, check out the FIXD sensor or, our other resources:

How to Read a Check Engine Light With or Without a Scanner

 

Where To Get Your Check Engine Light Codes Checked For Free

 

Let’s dive in.

Hyundai Accent CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0420 Damaged or worn-out catalytic converter Replace catalytic converter Replace catalytic converter: $400-$2400
Broken O2 sensor Replace downstream O2 sensor Oxygen sensor replacement: $275-$500
Exhaust leak Seal exhaust leak Exhaust leak: $100-$200 (if welded to repair)
#2 P0300 Spark plug is worn or broken Replace spark plugs Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900
#3 P0301 Spark plug #1 is worn or broken Replace spark plug #1  Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900
#4 P0302 Spark plug #2 is worn or broken Replace spark plug #2  Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900
#5 P0303 Spark plug #3 is worn or broken Replace spark plug #3 Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900

Hyundai Azera CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

 DTC Codes Most Common Causes RepairRepair Cost
#1P0463Fuel level sensor is brokenReplace fuel level sensorFuel level sensor: $864 – $1,023
Fuel pump is brokenReplace fuel pumpFuel pump: $806 – $967
Faulty gauge clusterReplace gauge clusterInstrument cluster: $804 – $824
#2P2068Faulty fuel level sensorReplace fuel level sensorFuel level sensor: $940 – $1080
#3P0430Damaged or worn out catalytic converter430Replace catalytic converterReplace catalytic converter: $400-$2400
Broken O2 sensorReplace downstream O2 sensorReplace catalytic converter: $400-$2400
Exhaust leakSeal exhaust leakExhaust leak: $100-$200 (if welded to repair)
#4P0300Spark plug is worn or brokenReplace spark plugsSpark plugs: $66-$250
Ignition coils are brokenReplace ignition coilsIgnition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are wornReplace spark plug wiresSpark plug wires: $180-$240
Fuel injectors are brokenReplace fuel injectorsFuel injectors: $1500-$1900

Hyundai Elantra CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

 DTC Codes Most Common Causes RepairRepair Cost
#1P0455Missing, loose, or damaged gas capTIghten or replace gas capMissing or damaged gas cap: $0-$20
Leak in EVAP line455Fix leap in EVAP lineEVAP line: $20-$100
EVAP vent control valve is damaged or stuckReplace EVAP vent control valveEVAP vent control valve: $150-$200
EVAP purge volume control valve is damaged or stuckReplace EVAP purge volume control valvePurge volume control valve: $150-$200
#2P0420Damaged or worn-out catalytic converterReplace catalytic converterReplace catalytic converter: $400-$2400
Broken O2 sensorReplace downstream O2 sensorOxygen sensor replacement: $275-$500
Exhaust leakSeal exhaust leakExhaust leak: $100-$200 (if welded to repair)
#3P0301Spark plug #1 is worn or brokenReplace spark plug #1 Spark plugs: $66-$250
Ignition coils are brokenReplace ignition coilsIgnition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are wornReplace spark plug wiresSpark plug wires: $180-$240
Fuel injectors are brokenReplace fuel injectorsFuel injectors: $1500-$1900
#4P0303Spark plug #3 is worn or brokenReplace spark plug #3Spark plugs: $66-$250
Ignition coils are brokenReplace ignition coilsIgnition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are wornReplace spark plug wiresSpark plug wires: $180-$240
Fuel injectors are brokenReplace fuel injectorsFuel injectors: $1500-$1900
#5P0302Spark plug #2 is worn or brokenReplace spark plug #2 Spark plugs: $66-$250
Ignition coils are brokenReplace ignition coilsIgnition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are wornReplace spark plug wiresSpark plug wires: $180-$240
Fuel injectors are brokenReplace fuel injectorsFuel injectors: $1500-$1900

Hyundai Entourage CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

 DTC Codes Most Common Causes RepairRepair Cost
#1P0420Damaged or worn-out catalytic converterReplace catalytic converterReplace catalytic converter: $400-$2400
Broken O2 sensorReplace downstream O2 sensorOxygen sensor replacement: $275-$500
Exhaust leakSeal exhaust leakExhaust leak: $100-$200 (if welded to repair)
#2P2187Faulty spark plugReplace spark plug Spark plug: $66 – $250
Exhaust leak Fix exhaust leak Fix exhaust leak: $100-$200 (if welded to repair)
Fuel injector failure Replace fuel injector Replace fuel injector: $1500-$1900
Fuel pump failureReplace fuel pump failureReplace fuel pump failure: $806 – $967
#3P0430Damaged or worn out catalytic converterReplace catalytic converterReplace catalytic converter: $400-$2400
Broken O2 sensorReplace downstream O2 sensorReplace catalytic converter: $400-$2400
Exhaust leakSeal exhaust leakExhaust leak: $100-$200 (if welded to repair)
#4P0174Dirty mass airflow sensorClean mass airflow sensorClean mass airflow sensor: $20 – $100
Faulty mass airflow sensorReplace mass airflow sensorReplace mass airflow sensor: $230 – $330
Vacuum leaks – PCV hoses, vacuum hoses, intake manifold gasketSeal vacuum leakVacuum leak: $100 – $200
Clogged fuel injectorsClean fuel injectorsClean fuel injectors: $50 – $80
#5P0171Dirty mass airflow sensorClean mass airflow sensorClean mass airflow sensor: $20 – $100
Faulty mass airflow sensorReplace mass airflow sensorReplace mass airflow sensor: $230 – $330
Vacuum leaks – PCV hoses, vacuum hoses, intake manifold gasketSeal vacuum leakVacuum leak $100 – $200

Hyundai Genesis CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

 DTC Codes Most Common Causes RepairRepair Cost
#1P0171Dirty mass airflow sensorClean mass airflow sensorClean mass airflow sensor: $20 – $100
Faulty mass airflow sensorReplace mass airflow sensorReplace mass airflow sensor: $230 – $330
Vacuum leaks – PCV hoses, vacuum hoses, intake manifold gasketSeal vacuum leakVacuum leak $100 – $200
#2P2187Faulty spark plugReplace spark plug Spark plug: $66 – $250
Exhaust leak Fix exhaust leak Fix exhaust leak: $100-$200 (if welded to repair)
Fuel injector failure Replace fuel injector Replace fuel injector: $1500-$1900
Fuel pump failureReplace fuel pump failureReplace fuel pump failure: $806 – $967
#3P0018Faulty camshaft sensorReplace camshaft sensorCamshaft sensor: $200 – $400
Faulty oil control valveReplace oil control valveOil control valve: $300 – $600

Hyundai Genesis Coupe CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0420 Damaged or worn-out catalytic converter Replace catalytic converter Replace catalytic converter: $400-$2400
Broken O2 sensor Replace downstream O2 sensor Oxygen sensor replacement: $275-$500
Exhaust leak Seal exhaust leak Exhaust leak: $100-$200 (if welded to repair)
#2 P0430 Damaged or worn out catalytic converter Replace catalytic converter Replace catalytic converter: $400-$2400
Broken O2 sensor Replace downstream O2 sensor Replace catalytic converter: $400-$2400
Exhaust leak Seal exhaust leak Exhaust leak: $100-$200 (if welded to repair)
#3 P0014 Engine oil is low or dirty Get an oil change Oil Change $20-$60
Camshaft variable timing solenoid failure Replace oil control valve/variable valve timing control solenoid Oil Control Valve/Variable Valve Timing Control Solenoid $300-$400
Engine failure Replace engine Engine $3000-$4000

Hyundai Santa Fe CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0463 Fuel level sensor is broken Replace fuel level sensor Fuel level sensor: $864 – $1,023
Fuel pump is broken replace fuel pump Fuel pump: $806 – $967
#2 P0420 Damaged or worn-out catalytic converter Replace catalytic converter Replace catalytic converter: $400-$2400
Broken O2 sensor Replace downstream O2 sensor Oxygen sensor replacement: $275-$500
Exhaust leak Seal exhaust leak Exhaust leak: $100-$200 (if welded to repair)
#3 P0441 Damaged charcoal cannister Replace charcoal cannister Replace charcoal cannister: $753 – $1000
Loose or missing gas cap Replace or tighten gas cap Replace or tighten gas cap: $0 – $20
Faulty purge valve Replace purge valve Replace purge valve: $109 – $172
#4 P2068 Faulty fuel level sensor Replace fuel level sensor Fuel level sensor: $940 – $1080
#5 P0455 Missing, loose, or damaged gas cap TIghten or replace gas cap Missing or damaged gas cap: $0-$20
Leak in EVAP line Fix leap in EVAP line EVAP line: $20-$100
EVAP vent control valve is damaged or stuck Replace EVAP vent control valve EVAP vent control valve: $150-$200
EVAP purge volume control valve is damaged or stuck Replace EVAP purge volume control valve Purge volume control valve: $150-$200

Hyundai Santa Fe Sport CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0420 Damaged or worn-out catalytic converter Replace catalytic converter Replace catalytic converter: $400-$2400
Broken O2 sensor Replace downstream O2 sensor Oxygen sensor replacement: $275-$500
Exhaust leak Seal exhaust leak Exhaust leak: $100-$200 (if welded to repair)
#2 P0455 Missing, loose, or damaged gas cap TIghten or replace gas cap Missing or damaged gas cap: $0-$20
Leak in EVAP line455 Fix leap in EVAP line EVAP line: $20-$100
EVAP vent control valve is damaged or stuck Replace EVAP vent control valve EVAP vent control valve: $150-$200
EVAP purge volume control valve is damaged or stuck Replace EVAP purge volume control valve Purge volume control valve: $150-$200
#3 P0014 Engine oil is low or dirty Get an oil change Oil Change $20-$60
Camshaft variable timing solenoid failure Replace oil control valve/variable valve timing control solenoid Oil Control Valve/Variable Valve Timing Control Solenoid $300-$400
Engine failure Replace engine Engine $3000-$4000
#4 P0456 Missing, loose, or damaged gas cap TIghten or replace gas cap Missing or damaged gas cap: $0-$20
Leak in EVAP line Fix leap in EVAP line EVAP line: $20-$100
EVAP vent control valve is damaged or stuck Replace EVAP vent control valve EVAP vent control valve: $150-$200
EVAP purge volume control valve is damaged or stuck Replace EVAP purge volume control valve Purge volume control valve: $150-$200

Hyundai Sonata CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0456 Missing, loose, or damaged gas cap TIghten or replace gas cap Missing or damaged gas cap: $0-$20
Leak in EVAP line Fix leap in EVAP line EVAP line: $20-$100
EVAP vent control valve is damaged or stuck Replace EVAP vent control valve EVAP vent control valve: $150-$200
EVAP purge volume control valve is damaged or stuck Replace EVAP purge volume control valve Purge volume control valve: $150-$200
#2 P0455 Missing, loose, or damaged gas cap TIghten or replace gas cap Missing or damaged gas cap: $0-$20
Leak in EVAP line455 Fix leap in EVAP line EVAP line: $20-$100
EVAP vent control valve is damaged or stuck Replace EVAP vent control valve EVAP vent control valve: $150-$200
EVAP purge volume control valve is damaged or stuck Replace EVAP purge volume control valve Purge volume control valve: $150-$200
#3 P0442 Missing, loose, or damaged gas cap TIghten or replace gas cap Missing or damaged gas cap: $0-$20
Leak in EVAP line Fix leap in EVAP line EVAP line: $20-$100
EVAP vent control valve is damaged or stuck Replace EVAP vent control valve EVAP vent control valve: $150-$200
EVAP purge volume control valve is damaged or stuck Replace EVAP purge volume control valve Purge volume control valve: $150-$200
#4 P0106 Faulty MAP sensor Replace MAP sensor MAP sensor: $132 to $160
Leaks in air intake system Replace air intake hoses Air intake hoses: $10 to $120
#5 P0011 Engine oil is low or dirty Get an oil change Oil Change $20-$60
Camshaft variable timing solenoid failure Replace oil control valve/variable valve timing control solenoid Oil Control Valve/Variable Valve Timing Control Solenoid $300-$400
Engine failure Replace engine Engine $3000-$4000

Hyundai Tiburon CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0171 Dirty mass airflow sensor Clean mass airflow sensor Clean mass airflow sensor: $20 – $100
Faulty mass airflow sensor Replace mass airflow sensor Replace mass airflow sensor: $230 – $330
Vacuum leaks – PCV hoses, vacuum hoses, intake manifold gasket Seal vacuum leak Vacuum leak $100 – $200
#2 P0102 Faulty mass airflow sensor Replace mass airflow sensor Mass airflow sensor: $230 – $330
Faulty air filter Replace air filter Air filter: $50 – $70
#3 P0174 Dirty mass airflow sensor Clean mass airflow sensor Clean mass airflow sensor: $20 – $100
Faulty mass airflow sensor Replace mass airflow sensor Replace mass airflow sensor: $230 – $330
Vacuum leaks – PCV hoses, vacuum hoses, intake manifold gasket Seal vacuum leak Vacuum leak: $100 – $200
Clogged fuel injectors Clean fuel injectors Clean fuel injectors: $50 – $80

Hyundai Tucson CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0455 Missing, loose, or damaged gas cap TIghten or replace gas cap Missing or damaged gas cap: $0-$20
Leak in EVAP line Fix leap in EVAP line EVAP line: $20-$100
EVAP vent control valve is damaged or stuck Replace EVAP vent control valve EVAP vent control valve: $150-$200
EVAP purge volume control valve is damaged or stuck Replace EVAP purge volume control valve Purge volume control valve: $150-$200
#2 P0430 Damaged or worn out catalytic converter Replace catalytic converter Replace catalytic converter: $400-$2400
Broken O2 sensor Replace downstream O2 sensor Replace catalytic converter: $400-$2400
Exhaust leak Seal exhaust leak Exhaust leak: $100-$200 (if welded to repair)
#3 P0420 Damaged or worn-out catalytic converter Replace catalytic converter Replace catalytic converter: $400-$2400
Broken O2 sensor Replace downstream O2 sensor Oxygen sensor replacement: $275-$500
Exhaust leak Seal exhaust leak Exhaust leak: $100-$200 (if welded to repair)
#4 P0303 Spark plug #3 is worn or broken Replace spark plug #3 Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900
#5 P0171 Dirty mass airflow sensor Clean mass airflow sensor Clean mass airflow sensor: $20 – $100
Faulty mass airflow sensor Replace mass airflow sensor Replace mass airflow sensor: $230 – $330
Vacuum leaks – PCV hoses, vacuum hoses, intake manifold gasket Seal vacuum leak Vacuum leak $100 – $200

Hyundai Veloster CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0420 Damaged or worn-out catalytic converter Replace catalytic converter Replace catalytic converter: $400-$2400
Broken O2 sensor Replace downstream O2 sensor Oxygen sensor replacement: $275-$500
Exhaust leak Seal exhaust leak Exhaust leak: $100-$200 (if welded to repair)
#2 P0300 Spark plug is worn or broken Replace spark plugs Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900
#3 P0441 Damaged charcoal cannister Replace charcoal cannister Replace charcoal cannister: $753 – $1000
Loose or missing gas cap Replace or tighten gas cap Replace or tighten gas cap: $0 – $20
Faulty purge valve Replace purge valve Replace purge valve: $109 – $172
#4 P0303 Spark plug #3 is worn or broken Replace spark plug #3 Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900

Hyundai Veracruz CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0420 Damaged or worn-out catalytic converter Replace catalytic converter Replace catalytic converter: $400-$2400
Broken O2 sensor Replace downstream O2 sensor Oxygen sensor replacement: $275-$500
Exhaust leak Seal exhaust leak Exhaust leak: $100-$200 (if welded to repair)
#2 P0430 Damaged or worn out catalytic converter430 Replace catalytic converter Replace catalytic converter: $400-$2400
Broken O2 sensor Replace downstream O2 sensor Replace catalytic converter: $400-$2400
Exhaust leak Seal exhaust leak Exhaust leak: $100-$200 (if welded to repair)
#3 P0455 Missing, loose, or damaged gas cap TIghten or replace gas cap Missing or damaged gas cap: $0-$20
Leak in EVAP line455 Fix leap in EVAP line EVAP line: $20-$100
EVAP vent control valve is damaged or stuck Replace EVAP vent control valve EVAP vent control valve: $150-$200
EVAP purge volume control valve is damaged or stuck Replace EVAP purge volume control valve Purge volume control valve: $150-$200
#4 P0456 Missing, loose, or damaged gas cap TIghten or replace gas cap Missing or damaged gas cap: $0-$20
Leak in EVAP line Fix leap in EVAP line EVAP line: $20-$100
EVAP vent control valve is damaged or stuck Replace EVAP vent control valve EVAP vent control valve: $150-$200
EVAP purge volume control valve is damaged or stuck Replace EVAP purge volume control valve Purge volume control valve: $150-$200

Hyundai XG300 CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0303 Spark plug #3 is worn or broken Replace spark plug #3 Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900
#2 P0300 Spark plug is worn or broken Replace spark plugs Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900
#3 P0305 Spark plug #5 is worn or broken Replace spark plug #5  Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900
#4 P0301 Spark plug #1 is worn or broken Replace spark plug #1  Spark plugs: $66-$250
Ignition coils are broken Replace ignition coils Ignition Coils: $230-$640 (some cars require Intake manifold removal)
Spark plug wires are worn Replace spark plug wires Spark plug wires: $180-$240
Fuel injectors are broken Replace fuel injectors Fuel injectors: $1500-$1900

Hyundai XG350 CEL – Causes, Diagnostic Codes, Potential Repairs, & Repair Costs

  DTC Codes  Most Common Causes  Repair Repair Cost
#1 P0134 Faulty upstream oxygen sensor Replace oxygen sensor Oxygen Sensor $200-$300
Damaged or shorted wiring or connections Replace or repair wiring Wiring repair/replacement $100-$1000
#2 P0401 Faulty EGR valve Replace EGR valve EGR valve: $332 to $413
Engine vacuum leak Fix vacuum leak Vacuum leak: $90 to $125

 

FAQs – Hyundai Check Engine Light

How long can you drive with the check engine light?

Depending on how serious your Check Engine Light is, you may not want to drive. According to FIXD’s data on Check Engine Light causes, 40% of all Check Engine Lights are serious. Before you continue driving, pull over and figure out why it’s on.

If you have a Flashing Check Engine Light, the issue is likely serious. Misfires, a common cause of a flashing light, can cause severe and expensive engine damage. Unburnt fuel can make it into your exhaust and destroy your catalytic converter, which can cost over $1000 to replace. If your light is flashing, you probably want to get a tow, it will be cheaper in the long run.

If you have a Solid Check Engine Light or one that goes on and off seemingly at random or only under certain conditions (like hard acceleration), you may not need to get a tow and can probably drive a few days without a problem. But, you should pull over to check for common problems just to make sure the light is not an early warning sign of a larger issue like your car overheating, leaking fluids, or not pumping coolant or oil. Just get to a safe spot and check for the most common cause first: A loose gas cap. If that’s all it is, tighten it up and be on your way, the light should reset itself. If not, check out: What to Do When Your Check Engine Light Comes on. Checking for symptoms like rough idling, loud exhaust, or other warning lights will help you rule out a more serious problem. 

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

It’s usually safe to drive your car for a few days with your Check Engine Light on as long as it’s not flashing. Some problems like engine misfires, which generally cause your Check Engine Light to flash, can make your car harder to control and can even start a fire in your car if left untreated for long enough. 

Although most times it’s safe to drive with your Check Engine Light on, you should always find out why it’s on ASAP. If something is seriously wrong with your car, the longer you drive, the higher the risk of costly repairs. According to FIXD’s data on Check Engine Light causes, 40% of all Check Engine Lights are serious.

What Does the Check Engine Light Mean?

When your Check Engine Light is on it means your car has identified a problem with the engine or transmission. There are over 1000 problems that can trigger a check engine light. Some are minor like a loose gas cap. Some, like an engine misfire, are more serious and can cause engine failure and/or damage.

The only way to know for sure what’s causing the check engine light is to diagnose it yourself or have a mechanic diagnose it. If you’d like to save some money; learning how to scan your car’s computer with a code reader isn’t hard and doing so will show you what system in your car is broken and you can narrow it down to likely repairs from there. This can help you decide if you can fix it or at the very least keep you from being overcharged at the mechanic. You can buy a small scanner like FIXD that fits in a glovebox, pocket, or purse if you want a clear answer on the severity of your light before you start driving again. Or check out: Where To Get Your CEL Checked if you need to find somewhere to get it checked fast.

What Does the Check Engine Light Look Like?

The check engine light is typically a yellow, orange, or red light in the shape of an engine on your car’s dashboard. Depending on the car, it might include the words “Check” or “Service Engine” inside or next to the engine symbol. The light might be solid or flashing depending on the cause of the check engine light.

FIXD Research Team

At FIXD, our mission is to make car ownership as simple, easy, and affordable as possible. Our research team utilizes the latest automotive data and insights to create tools and resources that help drivers get peace of mind and save money over the life of their car.

We’re here to help you simplify car care and save, so this post may contain affiliate links to help you do just that. If you click on a link and take action, we may earn a commission. However, the analysis and opinions expressed are our own.

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About the Author

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FIXD Research Team

At FIXD, our mission is to make car ownership as simple, easy, and affordable as possible. Our research team utilizes the latest automotive data and insights to create tools and resources that help drivers get peace of mind and save money over the life of their car.

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