Resetting the engine light on your 2015 Kia Soul is easier than you think—if you know the right steps. This guide walks you through manual methods, OBD2 scanner use, and battery disconnection, plus tips to prevent future warnings.
Key Takeaways
- Understand the cause first: Never reset the engine light without diagnosing the underlying issue—ignoring it could lead to serious engine damage.
- Use an OBD2 scanner for accuracy: This tool reads error codes and safely clears the light after repairs are made.
- Battery disconnection works—but has risks: Disconnecting the battery can reset the light, but may also erase radio settings and adaptive learning data.
- Manual reset isn’t always reliable: Some Kia Souls don’t support a dashboard-only reset, making tools necessary.
- Drive cycle matters: After resetting, complete a drive cycle to ensure the system rechecks and confirms no issues remain.
- Prevent future warnings: Regular maintenance like oil changes, air filter replacements, and gas cap checks reduce false triggers.
- Seek professional help when needed: If the light returns immediately, visit a certified mechanic to avoid costly repairs.
How to Reset Engine Light on 2015 Kia Soul
If you’ve noticed the dreaded “Check Engine” light glowing on your 2015 Kia Soul’s dashboard, you’re not alone. It’s one of the most common concerns among Kia owners—and for good reason. That little orange or yellow engine symbol can mean anything from a loose gas cap to a serious engine malfunction. But once you’ve fixed the problem, the next logical step is resetting the light so you can drive with peace of mind.
In this comprehensive guide, we’ll walk you through every method to reset the engine light on your 2015 Kia Soul—from simple DIY fixes to using professional tools. You’ll learn when it’s safe to reset the light, how to do it correctly, and how to avoid common mistakes that could leave you stranded or facing expensive repairs. Whether you’re a seasoned DIYer or a first-time car owner, this guide is designed to be clear, practical, and easy to follow.
By the end of this article, you’ll know exactly how to reset your engine light, understand what the warning means, and keep your Kia Soul running smoothly for years to come.
Why the Engine Light Comes On
Visual guide about How to Reset Engine Light on 2015 Kia Soul
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Before you rush to reset the engine light, it’s crucial to understand why it turned on in the first place. The “Check Engine” light—also known as the malfunction indicator lamp (MIL)—is part of your vehicle’s onboard diagnostics system (OBD2). This system constantly monitors engine performance, emissions, and other critical functions.
When something goes outside normal parameters, the computer stores a diagnostic trouble code (DTC) and triggers the light. Common causes include:
- A loose or faulty gas cap
- Oxygen sensor failure
- Spark plug or ignition coil issues
- Catalytic converter problems
- Mass airflow sensor malfunction
- Evaporative emissions system leaks
Some of these issues are minor and inexpensive to fix—like tightening a gas cap. Others, like a failing catalytic converter, can cost hundreds or even thousands of dollars if ignored.
That’s why resetting the light without addressing the root cause is like turning off a smoke alarm while your house is on fire. It might make you feel better temporarily, but the real problem remains.
So, step one: diagnose the issue. Only then should you proceed to reset the light.
Method 1: Fix the Problem First
The most important step in resetting your engine light is ensuring the underlying issue has been resolved. Here’s how to do it properly.
Step 1: Check the Gas Cap
Believe it or not, a loose or damaged gas cap is one of the most common reasons the engine light comes on in the 2015 Kia Soul. The cap seals the fuel system, and if it’s not tight, fuel vapors can escape, triggering an evaporative emissions code (like P0455 or P0457).
What to do:
- Turn off the engine and let the car cool.
- Open the fuel door and remove the gas cap.
- Inspect it for cracks, worn rubber seals, or damage.
- Reinstall it firmly—turn it until you hear it click 3–5 times.
- Drive for 10–15 miles and see if the light turns off on its own.
Many times, this simple fix resolves the issue without any further action.
Step 2: Use an OBD2 Scanner to Read the Code
If the gas cap isn’t the culprit, you’ll need to find out what is. An OBD2 scanner is a small, affordable device that plugs into your car’s diagnostic port and reads the trouble code.
Where to find the OBD2 port: In the 2015 Kia Soul, it’s usually located under the dashboard on the driver’s side, near the steering column. It’s a 16-pin connector, often covered by a small flap.
How to use the scanner:
- Turn the ignition to the “ON” position (but don’t start the engine).
- Plug the scanner into the OBD2 port.
- Follow the on-screen prompts to read the code.
- Write down the code (e.g., P0171, P0302).
Once you have the code, you can look it up online or use the scanner’s built-in database to understand what it means. For example, P0302 indicates a misfire in cylinder 2.
Step 3: Repair the Issue
Now that you know the problem, it’s time to fix it. Depending on the code, this could involve:
- Replacing a faulty oxygen sensor
- Changing spark plugs or ignition coils
- Cleaning or replacing the mass airflow sensor
- Repairing a vacuum leak
- Fixing the catalytic converter (best left to professionals)
If you’re comfortable with basic car repairs, many of these can be done at home with the right tools. However, for complex issues like internal engine problems or transmission faults, it’s wise to consult a certified mechanic.
Method 2: Reset the Engine Light with an OBD2 Scanner
Once the problem is fixed, the safest and most reliable way to reset the engine light is by using an OBD2 scanner. This method ensures the system recognizes the repair and clears the code properly.
Step 1: Plug in the Scanner
With the ignition on (engine off), plug the OBD2 scanner into the port under the dashboard.
Step 2: Access the Clear Codes Menu
Navigate through the scanner’s menu to find the “Clear Codes” or “Erase DTCs” option. This may be labeled differently depending on the brand (e.g., “Reset MIL,” “Clear Faults”).
Step 3: Confirm the Reset
The scanner will ask if you’re sure you want to clear the codes. Select “Yes” or “Confirm.” Within seconds, the engine light should turn off.
Pro Tip: Some scanners also allow you to view live data or perform system tests. Use these features to verify that sensors are working correctly after repairs.
Step 4: Test Drive the Vehicle
After resetting, take your Kia Soul for a short drive—about 10–15 minutes—to allow the onboard computer to run its self-checks. This is called a “drive cycle.”
If the light stays off, congratulations! The issue has been resolved. If it comes back on, the problem may not be fully fixed, or a new issue has arisen.
Method 3: Disconnect the Battery (Manual Reset)
If you don’t have an OBD2 scanner, you can try resetting the engine light by disconnecting the car battery. This method forces the vehicle’s computer to reset, clearing stored codes and turning off the light.
Warning: This method has drawbacks. Disconnecting the battery can erase radio presets, clock settings, and adaptive learning data (like fuel trim values). It may also require you to relearn certain systems, such as the idle speed.
Step 1: Turn Off the Engine and Remove the Key
Make sure the car is completely off and the key is out of the ignition.
Step 2: Locate the Battery
In the 2015 Kia Soul, the battery is in the engine bay on the driver’s side. Open the hood and locate the battery terminals.
Step 3: Disconnect the Negative Terminal
Use a wrench (usually 10mm) to loosen the nut on the negative (-) terminal. Carefully remove the cable and tuck it away from the battery so it doesn’t accidentally touch the terminal.
Safety Tip: Always disconnect the negative terminal first to avoid short circuits.
Step 4: Wait 15–30 Minutes
Leave the battery disconnected for at least 15 minutes. This allows the vehicle’s computer to fully discharge and reset.
Some experts recommend waiting up to 30 minutes for a complete reset, especially if multiple systems were affected.
Step 5: Reconnect the Battery
Reattach the negative cable and tighten the nut securely. Make sure it’s snug but don’t overtighten.
Step 6: Turn On the Ignition
Turn the key to the “ON” position (don’t start the engine yet). Wait a few seconds, then start the car.
The engine light should be off. If it’s still on, the issue may not have been resolved, or the reset didn’t take.
Step 7: Drive and Monitor
Take the car for a drive to complete a drive cycle. Monitor the dashboard to ensure the light doesn’t return.
Method 4: Drive Cycle Reset (Automatic Clear)
In some cases, the engine light will turn off on its own after the problem is fixed and the vehicle completes a drive cycle. This is known as an “automatic reset.”
A drive cycle is a specific pattern of driving that allows the onboard computer to test all emissions and engine systems. For the 2015 Kia Soul, a typical drive cycle includes:
- Starting the engine when cold (below 160°F)
- Driving at varying speeds (city and highway)
- Accelerating and decelerating smoothly
- Letting the engine idle for a few minutes
- Turning off the engine after at least 15–20 minutes of driving
If the system detects no faults during this cycle, it may automatically clear the code and turn off the light.
However, this method is unreliable. Some codes require manual clearing, and the light may stay on even after repairs. For best results, use an OBD2 scanner.
Troubleshooting Common Issues
Even after following these steps, you might run into problems. Here’s how to handle common issues.
The Light Comes Back On Immediately
If the engine light returns right after resetting, the underlying issue hasn’t been fixed. Double-check your repairs. For example:
- If you replaced a spark plug but the light is back, the ignition coil might be faulty.
- If you tightened the gas cap but the light returns, the cap may be cracked and need replacement.
Use your OBD2 scanner to read the new code and address it accordingly.
The Light Won’t Turn Off
If the light remains on despite your efforts, there could be a few reasons:
- The problem is intermittent and hasn’t triggered a new code yet.
- The vehicle’s computer hasn’t completed a full drive cycle.
- There’s a wiring issue or faulty sensor sending false signals.
In these cases, it’s best to consult a mechanic. They have advanced diagnostic tools and can perform a deeper inspection.
Battery Disconnection Didn’t Work
Not all vehicles respond to battery disconnection. Some modern cars, including the 2015 Kia Soul, have persistent memory that retains codes even after power loss. If this method fails, use an OBD2 scanner instead.
Radio or Clock Reset After Battery Disconnect
This is normal. To restore settings:
- Use the radio’s preset buttons to re-save your favorite stations.
- Reset the clock using the dashboard controls (usually in the audio or settings menu).
- Some models may require a security code to unlock the radio—check your owner’s manual.
Preventing Future Engine Light Warnings
The best way to avoid dealing with the engine light is to prevent it from coming on in the first place. Here are some proactive tips:
Perform Regular Maintenance
Follow the maintenance schedule in your 2015 Kia Soul owner’s manual. Key items include:
- Oil and filter changes every 5,000–7,500 miles
- Air filter replacement every 15,000–30,000 miles
- Spark plug replacement every 60,000–100,000 miles
- Fuel system cleaning every 30,000 miles
Regular maintenance keeps sensors clean and engines running efficiently.
Check the Gas Cap Every Time You Fill Up
Make it a habit to ensure the gas cap is tight after refueling. A loose cap is a quick fix that prevents unnecessary warnings.
Use Quality Fuel and Additives
Low-quality fuel can cause carbon buildup and sensor fouling. Use top-tier gasoline and consider adding a fuel system cleaner every few thousand miles.
Address Warning Lights Promptly
Don’t ignore the engine light. The sooner you diagnose and fix the issue, the less damage it can cause.
When to See a Mechanic
While many engine light issues can be handled at home, some require professional attention. Visit a certified mechanic if:
- The light flashes (indicating a severe misfire that can damage the catalytic converter)
- You’re unsure how to interpret or fix the trouble code
- The problem involves the transmission, fuel system, or internal engine components
- The light returns repeatedly after repairs
A professional diagnostic can save you time, money, and stress in the long run.
Conclusion
Resetting the engine light on your 2015 Kia Soul doesn’t have to be intimidating. With the right tools and knowledge, you can safely clear the warning and get back on the road with confidence.
Remember: always diagnose the problem first. Use an OBD2 scanner to read the code, fix the issue, and then reset the light. While battery disconnection and drive cycles can work, the scanner method is the most reliable and recommended.
By following this guide, you’ll not only reset your engine light but also gain a better understanding of your vehicle’s health. Regular maintenance and prompt attention to warnings will keep your Kia Soul running smoothly for years to come.
Don’t let that little light scare you—empower yourself with the know-how to handle it like a pro.