Discover how to reset the check engine light on your 2017 Kia Soul using simple methods like driving cycles, OBD2 scanners, or disconnecting the battery. This guide covers safe procedures, common causes, and when to seek professional help.
Key Takeaways
- Understand the cause first: Resetting the light won’t fix the underlying issue. Always diagnose the problem before clearing the code.
- Use an OBD2 scanner for best results: This is the safest and most effective way to reset the check engine light on a 2017 Kia Soul.
- Driving cycles can clear minor issues: After repairs, driving under normal conditions may allow the car to reset the light automatically.
- Battery disconnection is a last resort: While it can reset the light, it also clears radio settings and adaptive learning data.
- Check gas cap regularly: A loose or faulty gas cap is a common cause of the check engine light in Kia Souls.
- Monitor after reset: If the light returns, the issue persists and requires further diagnosis.
- Seek professional help when needed: Complex issues like catalytic converter or sensor problems should be handled by a mechanic.
How to Reset Check Engine Light on 2017 Kia Soul
If you’re driving a 2017 Kia Soul and the dreaded check engine light has popped up on your dashboard, you’re not alone. This warning light can be alarming, but it doesn’t always mean a major repair is needed. In many cases, it’s triggered by something simple—like a loose gas cap or a minor sensor glitch. The good news? You can often reset the check engine light yourself, especially after fixing the root cause.
In this comprehensive guide, you’ll learn how to reset the check engine light on your 2017 Kia Soul using safe, proven methods. We’ll walk you through step-by-step instructions, explain when it’s safe to do it yourself, and help you understand what the light really means. Whether you’re a DIY enthusiast or just want to save a trip to the mechanic, this guide has you covered.
By the end of this article, you’ll know how to:
– Diagnose the cause of the check engine light
– Use an OBD2 scanner to read and clear codes
– Reset the light using driving cycles
– Safely disconnect the battery (if needed)
– Troubleshoot common issues
– Decide when to call a professional
Let’s get started—your Kia Soul will be back to running smoothly in no time.
Why Is the Check Engine Light On?
Before you reset the check engine light, it’s crucial to understand why it came on in the first place. The light is part of your car’s onboard diagnostic system (OBD2), which monitors engine performance, emissions, and other critical systems. When something goes outside normal parameters, the system triggers the light to alert you.
Common causes in the 2017 Kia Soul include:
– Loose or damaged gas cap
– Faulty oxygen (O2) sensor
– Mass airflow (MAF) sensor issues
– Spark plug or ignition coil problems
– Catalytic converter inefficiency
– Evaporative emissions system leaks
– Engine misfires
Some of these issues are minor and inexpensive to fix. Others, like catalytic converter failure, can be costly. That’s why diagnosing the problem is the first step—not just resetting the light.
How the OBD2 System Works
Your 2017 Kia Soul uses an OBD2 system, which has been standard in all vehicles since 1996. This system continuously monitors sensors and components related to engine performance and emissions. When a fault is detected, it stores a diagnostic trouble code (DTC) and turns on the check engine light.
These codes are standardized, meaning the same code (like P0420) means the same thing across all car brands. This makes it easier for mechanics—and DIYers—to pinpoint issues.
Don’t Ignore the Light
While it might be tempting to just reset the light and hope it doesn’t come back, ignoring the underlying problem can lead to bigger issues. For example:
– A misfiring engine can damage the catalytic converter
– A faulty oxygen sensor can reduce fuel efficiency
– A vacuum leak can cause rough idling and poor performance
Resetting the light without fixing the problem is like turning off a smoke alarm while the fire still burns. It might make you feel better temporarily, but the danger remains.
Method 1: Use an OBD2 Scanner (Recommended)
The safest and most effective way to reset the check engine light on your 2017 Kia Soul is by using an OBD2 scanner. This tool reads the trouble codes stored in your car’s computer, tells you what’s wrong, and allows you to clear the codes—including the check engine light.
What You’ll Need
– OBD2 scanner (basic models start around $20)
– 2017 Kia Soul (engine off)
– Access to the OBD2 port (usually under the dashboard)
Step-by-Step Instructions
Step 1: Locate the OBD2 Port
The OBD2 port in the 2017 Kia Soul is typically located under the dashboard on the driver’s side, near the steering column. It’s a 16-pin connector that looks like a trapezoid. You may need to crouch down or use a flashlight to find it.
Visual guide about How to Reset Check Engine Light on 2017 Kia Soul
Image source: i.ytimg.com
Step 2: Plug in the Scanner
Turn off the engine and insert the OBD2 scanner into the port. Make sure it’s securely connected. Some scanners require you to turn the ignition to the “ON” position (without starting the engine) to power up.
Step 3: Turn the Ignition On
Turn the key to the “ON” position. The dashboard lights should illuminate, but the engine should remain off. This provides power to the scanner and the car’s computer.
Step 4: Read the Codes
Follow the scanner’s instructions to read the diagnostic trouble codes (DTCs). Most scanners have a “Read” or “Scan” button. The device will display one or more codes, such as P0420 (catalytic converter efficiency below threshold) or P0171 (system too lean).
Step 5: Interpret the Codes
Use the scanner’s built-in database or search online to understand what the code means. For example:
– P0442: Small evaporative emissions leak (often a loose gas cap)
– P0300: Random/multiple cylinder misfire
– P0135: O2 sensor heater circuit malfunction
Step 6: Fix the Problem
Once you know the cause, address it. For example:
– Tighten or replace the gas cap
– Replace a faulty oxygen sensor
– Clean or replace the mass airflow sensor
– Replace spark plugs or ignition coils
Step 7: Clear the Codes
After fixing the issue, return to the scanner and select “Clear Codes” or “Erase DTCs.” This will reset the check engine light. The scanner may ask for confirmation—select “Yes.”
Step 8: Turn Off the Ignition
Turn the key back to the “OFF” position and unplug the scanner. Start the engine and check if the light is off. If it is, you’ve successfully reset it.
Tips for Using an OBD2 Scanner
– Choose a scanner with live data and code definitions for better diagnostics
– Keep the scanner updated with the latest software
– Write down the codes before clearing them, in case you need to reference them later
– Some advanced scanners can reset readiness monitors, which is helpful before emissions testing
Method 2: Drive the Car (Automatic Reset)
In some cases, the check engine light will reset itself after the problem is fixed and the car completes a series of driving cycles. This method works best for minor issues like a loose gas cap or temporary sensor glitches.
What Is a Driving Cycle?
A driving cycle is a specific pattern of driving that allows the car’s computer to test various systems. For the 2017 Kia Soul, a typical driving cycle includes:
– Cold start (engine off for at least 8 hours)
– Idle for 2–3 minutes
– Drive at varying speeds (city and highway)
– Accelerate and decelerate smoothly
– Come to a complete stop
Step-by-Step Driving Cycle
Step 1: Fix the Issue
First, address the cause of the light. For example, if the gas cap was loose, tighten it or replace it.
Step 2: Start with a Cold Engine
Let the car sit overnight so the engine is completely cold. This ensures the computer starts fresh.
Step 3: Idle the Engine
Start the car and let it idle for 2–3 minutes. This allows the oxygen sensors and other components to warm up.
Step 4: Drive in City Conditions
Drive at speeds between 20–35 mph for about 5–10 minutes. Include stops, starts, and moderate acceleration.
Step 5: Drive on the Highway
Accelerate to 55–65 mph and maintain that speed for 10–15 minutes. This helps the catalytic converter and oxygen sensors reach operating temperature.
Step 6: Decelerate and Stop
Slow down gradually and come to a complete stop. Turn off the engine.
Step 7: Repeat if Necessary
Complete 2–3 full driving cycles over 3–5 days. The check engine light should turn off if the issue was minor and the system passes all tests.
When This Method Works
– Loose or faulty gas cap
– Temporary sensor glitches
– Minor evaporative emissions leaks
– After replacing a battery or disconnecting terminals
Limitations
– Won’t work for serious mechanical issues
– May take several days
– Not reliable for emissions testing readiness
Method 3: Disconnect the Battery (Last Resort)
Disconnecting the car battery can reset the check engine light by cutting power to the engine control unit (ECU). However, this method should be used only if other options aren’t available, as it has downsides.
What You’ll Need
– Wrench or socket set
– Safety gloves and glasses
– 10–15 minutes
Step-by-Step Instructions
Step 1: Turn Off the Engine
Make sure the car is off and the keys are removed from the ignition.
Step 2: Locate the Battery
The battery in the 2017 Kia Soul is under the hood, on the driver’s side. It’s a standard 12-volt lead-acid battery.
Step 3: Disconnect the Negative Terminal
Use a wrench to loosen the nut on the negative (black) terminal. Remove the cable and tuck it away from the battery to prevent accidental contact.
Step 4: Wait 10–15 Minutes
This allows the ECU to fully discharge and reset. Some recommend waiting up to 30 minutes for a complete reset.
Step 5: Reconnect the Terminal
Reattach the negative cable and tighten the nut securely.
Step 6: Start the Car
Turn the ignition on and start the engine. The check engine light should be off—at least temporarily.
Downsides of Battery Disconnection
– Resets radio presets, clock, and climate settings
– Clears adaptive learning data (fuel trim, shift points)
– May trigger other warning lights (ABS, airbag)
– Doesn’t fix the underlying problem
When to Use This Method
– No OBD2 scanner available
– Light came on after a battery replacement
– As a temporary fix while waiting for repairs
Troubleshooting Common Issues
Even after resetting the light, it may come back. Here’s how to troubleshoot common problems in the 2017 Kia Soul.
Light Comes Back On
If the check engine light returns shortly after resetting, the issue wasn’t fully resolved. Use an OBD2 scanner to read the new code and diagnose the problem. Common recurring issues include:
– Faulty oxygen sensor
– Catalytic converter failure
– Persistent misfires
– Vacuum leaks
Multiple Codes Appear
If you see several codes, start with the most critical one. For example, a misfire code (P0300) should be addressed before an oxygen sensor code (P0135), as the misfire could be damaging the sensor.
Readiness Monitors Not Ready
After a reset, your car’s readiness monitors (used for emissions testing) may show as “not ready.” Complete 2–3 driving cycles to allow the system to retest. Most states require all monitors to be ready for inspection.
Check Gas Cap First
Before diving into complex diagnostics, always check the gas cap. It’s one of the most common causes of the check engine light. Make sure it’s tight and the seal isn’t cracked.
When to See a Mechanic
While many check engine light issues can be handled at home, some require professional attention. Seek a mechanic if:
– The light is flashing (indicates a severe misfire)
– You smell fuel or see smoke
– The car is running rough, stalling, or losing power
– You’re unsure how to interpret or fix the code
– The light keeps coming back after repairs
A certified Kia technician has access to advanced diagnostic tools and can perform repairs that require specialized equipment.
Conclusion
Resetting the check engine light on your 2017 Kia Soul doesn’t have to be stressful. With the right tools and knowledge, you can safely clear the light and get back on the road. The best method is using an OBD2 scanner, which lets you read the code, fix the problem, and reset the light in one go.
Driving cycles can work for minor issues, while battery disconnection should be a last resort. Always diagnose the cause first—resetting the light without fixing the problem is only a temporary solution.
By following this guide, you’ll save time, money, and frustration. And remember: if the light comes back, don’t ignore it. Your Kia Soul relies on you to keep it running smoothly.
Drive safe, stay informed, and keep that check engine light off for good.