Reset the check engine light on your 2015 Dodge Journey in 2026 by first diagnosing the root cause with an OBD2 scanner—never skip this step. Once repairs are complete, use the scanner to clear the code or try the battery disconnect method: remove the negative terminal for 10 minutes to reset the system. Always verify the fix by rechecking for codes before driving.

How to Reset Check Engine Light on 2015 Dodge Journey in 2026

Key Takeaways

• Diagnose first: Always scan for codes before resetting the light.
• Use an OBD2 scanner: Plug in to clear codes safely and accurately.
• Disconnect battery: A 5-minute disconnect may reset light temporarily.
• Drive after reset: Complete a drive cycle to verify repairs.
• Address root causes: Fix underlying issues to prevent light return.
• Avoid quick fixes: Never ignore persistent lights—safety first.

Why This Matters / Understanding the Problem

You’re driving your 2015 Dodge Journey, and suddenly—ping—the check engine light pops on. It’s not just annoying; it’s a warning that something in your engine system isn’t right. Whether it’s a loose gas cap or a serious misfire, the check engine light is your car’s way of saying, “Hey, I need attention.”

But what if the issue has been fixed, and the light is still on? Or you’ve already had a mechanic diagnose and repair the problem, but the light won’t go away? That’s where knowing how to reset check engine light on 2015 Dodge Journey in 2026 becomes essential. Ignoring it doesn’t make it go away—and worse, it could mask future issues or cause you to fail an emissions test.

Resetting the light isn’t a magic fix, but it’s a necessary step after repairs. In 2026, with modern diagnostics and stricter emissions standards, doing it the right way ensures your Journey runs cleanly and safely. This guide walks you through the safest, most effective methods—no guesswork, no shortcuts.

Note: Resetting the check engine light without fixing the underlying problem is like putting duct tape over a warning sign. Always diagnose first.

What You Need

Before you dive in, gather the right tools. The good news? You don’t need a full mechanic’s toolkit. Here’s what you’ll need to successfully reset the check engine light on your 2015 Dodge Journey:

• OBD2 (On-Board Diagnostics) Scanner – This is the most reliable and recommended tool. Look for a basic Bluetooth or USB model (e.g., BlueDriver, FIXD, or Autel MaxiCOM). It reads error codes and resets the light safely.
• Smartphone or tablet – If using a Bluetooth scanner, you’ll need a compatible device with the scanner’s app installed.
• Owner’s manual – Handy for fuse locations and system reset procedures.
• Wrench or pliers – Only if you’re doing the battery disconnect method (not recommended unless necessary).
• 10–15 minutes of quiet time – No rush. Accuracy matters.

Optional (but helpful): A flashlight for better visibility under the dashboard.

Using an OBD2 scanner is the gold standard because it not only resets the light but also confirms the problem is gone. The how to reset check engine light on 2015 Dodge Journey in 2026 process is far more effective when you verify the fix first.

Pro Tip: Avoid cheap $10 scanners from gas stations. They often can’t clear all codes or may reset the light temporarily—only for it to return after a few drives.

Step-by-Step Guide to How to Reset Check Engine Light on 2015 Dodge Journey in 2026

Step 1: Park Safely and Turn Off the Engine

First things first—safety. Pull over to a flat, safe spot. Turn off your Dodge Journey and remove the key from the ignition. Let the engine cool for a minute, especially if you’ve been driving.

Engage the parking brake. This isn’t just for safety; it ensures your car is in a stable state for diagnostics. The OBD2 system communicates with engine sensors, and a moving or unstable vehicle can interfere.

Make sure all accessories (radio, AC, lights) are off. This reduces electrical load and helps the system reset cleanly.

Step 2: Locate the OBD2 Port

The OBD2 port is your gateway to the car’s computer system. On the 2015 Dodge Journey, it’s typically located under the dashboard, near the driver’s left knee. Look for a 16-pin connector—it’s rectangular and often has a small plastic cover.

You might need to crouch down or use a flashlight. The port is usually black or gray and labeled “OBD2” or has a symbol resembling a car with a lightning bolt.

Once found, clear any dust or debris. A clean connection ensures reliable communication between your scanner and the vehicle’s ECU (Engine Control Unit).

Warning: Don’t force anything into the port. Use the scanner gently—pins are delicate and can bend if misaligned.

Step 3: Plug in the OBD2 Scanner

Take your OBD2 scanner and plug it into the port. Make sure it clicks in securely. If it’s a Bluetooth model, power it on. If it’s a USB model (plugged into your phone/tablet), ensure the device is charged and the app is open.

Wait a few seconds. The scanner will power up and connect to your Journey’s computer. You’ll usually see a status light (green or blue) indicating a successful connection.

For Bluetooth scanners, pair it with your phone or tablet via the app. Follow the on-screen prompts. The app should detect your vehicle and show “Connected” or “Ready.”

This step is critical for the how to reset check engine light on 2015 Dodge Journey in 2026 process because without a solid connection, you can’t read or clear codes.

Step 4: Read and Record the Diagnostic Trouble Code (DTC)

Now, use the scanner to pull the error code(s). Look for a button labeled “Read Codes,” “Scan,” or “DTCs.” Tap it.

The scanner will display one or more codes (e.g., P0457 for a loose gas cap, P0300 for random misfire). These codes tell you exactly what’s wrong.

Important: Write down the codes. Even if you’ve already fixed the issue, recording them helps confirm the repair was successful. If the same code returns after a reset, the problem may not be fully resolved.

Use the scanner’s built-in database or search online to interpret the code. For example, a P0171 means the engine is running lean (too much air, not enough fuel). This info helps you avoid future issues.

Pro Tip: Take a photo of the codes with your phone. That way, you can reference them later or show a mechanic.

Step 5: Confirm the Issue Has Been Fixed

Before resetting, ask yourself: Has the problem been fixed? If you replaced a faulty oxygen sensor, tightened the gas cap, or cleared a clogged fuel injector, you’re good to go.

But if you’re resetting the light without repairs—don’t. The light will likely come back. In 2026, emissions regulations are strict, and driving with a persistent code can lead to fines or failed inspections.

For minor issues like a loose gas cap, drive for 20–30 minutes after tightening it. The car’s system may auto-clear the code. But if it doesn’t, proceed with the manual reset.

This step ensures the how to reset check engine light on 2015 Dodge Journey in 2026 process is both ethical and effective.

Step 6: Clear the Diagnostic Trouble Code

Now it’s time to reset. In your scanner app, look for an option like “Clear Codes,” “Reset Check Engine Light,” or “Erase DTCs.” Tap it.

The scanner will send a command to the ECU to erase the stored code and turn off the check engine light. You might hear a soft beep or see a confirmation message like “Codes cleared successfully.”

Wait about 10–15 seconds. The scanner may show “No DTCs found” or “System OK.” This means the light should be off when you restart the car.

Note: Some scanners require you to turn the ignition to “ON” (without starting the engine) before clearing. Check your scanner’s manual.

Warning: Never clear codes while the engine is running. It can corrupt the ECU or cause false readings.

Step 7: Turn the Ignition to “ON” and Verify

With the scanner still plugged in, turn the ignition to “ON” (position II). The dashboard lights will illuminate, but don’t start the engine yet.

Check the check engine light. If the reset worked, the light should not come on. If it flashes or stays on, the code wasn’t fully cleared—or the problem still exists.

Use the scanner to do a quick re-scan. If no codes appear, you’re golden. If the same code returns, the repair wasn’t complete. You may need professional help.

Now, start the engine. Let it idle for 30 seconds. The light should remain off. If it comes back on, repeat the process or investigate further.

Step 8: Perform a Test Drive (Recommended)

To ensure the reset is permanent, take your Journey for a short 10–15 minute drive. Include a mix of city and highway speeds if possible.

Drive smoothly—accelerate gently, brake normally, and avoid hard revving. This helps the ECU relearn fuel trims and sensor readings.

After the drive, turn off the engine. Wait a minute, then restart. The check engine light should stay off. If it returns, the system has detected a new or recurring issue.

This step is especially important for the how to reset check engine light on 2015 Dodge Journey in 2026 process because modern vehicles require multiple “drive cycles” to fully clear emissions-related codes.

Pro Tip: Some codes (like catalytic converter issues) require several full drive cycles over multiple days to clear. Be patient.

Step 9: Monitor for a Few Days

Even after a successful reset, keep an eye on the light. Modern ECUs monitor emissions systems continuously. A code might return if the fix wasn’t permanent.

Check the light each time you start the car for the next 3–5 days. If it stays off, you’re good. If it returns, re-scan and address the root cause.

You can also use your scanner to run a “Drive Cycle Monitor” test. Many apps show which emissions monitors are “ready” or “not ready.” All should be “ready” for a clean emissions test.

Step 10: (Alternative) Battery Disconnect Method (Not Recommended)

Some people try to reset the light by disconnecting the battery. It can work, but it’s risky and outdated. Here’s how, but use it only as a last resort:

• Turn off the engine and remove the key.
• Open the hood and locate the 12V battery (driver’s side, front of engine bay).
• Use a wrench to loosen the negative terminal (black, marked “–”).
• Remove the cable and wait 15–30 minutes. This drains residual power and resets the ECU.
• Reconnect the terminal and tighten it.

Downsides: This method resets all electronic settings—radio presets, clock, seat memory, and sometimes the anti-theft system. It can also trigger new warning lights or require a drive cycle to relearn fuel trims.

Worse, it doesn’t confirm the code is gone. The light might come back. Always use an OBD2 scanner when possible.

Warning: Disconnecting the battery can damage sensitive electronics if done improperly. Not recommended for beginners.

Pro Tips & Common Mistakes to Avoid

Resetting the check engine light isn’t hard, but small mistakes can cause big headaches. Here’s how to do it right the first time:

• Always diagnose first. Never reset without knowing the cause. A P0301 code (cylinder 1 misfire) won’t go away if the spark plug is still bad.
• Use a quality scanner. Cheap tools may clear the light but miss pending codes. Invest in a reliable brand like BlueDriver or Innova.
• Don’t rush the drive cycle. Some systems need time to reset. Drive normally for a few days before assuming the fix failed.
• Check your gas cap. It’s the #1 cause of check engine lights. Tighten it until it clicks 2–3 times. Replace it if cracked or loose.
• Clear codes only after repairs. Mechanics hate it when customers reset codes before bringing the car in. It hides the problem.
• Keep records. Save code logs and repair receipts. This helps with resale value and future diagnostics.

Common Mistake: Resetting the light and driving 100 miles without fixing anything. The light will return—and you’ll be back to square one.

Another mistake? Using the battery method and then being surprised when your radio asks for a code. Modern vehicles store anti-theft data in the ECU. A full reset can lock you out.

For the how to reset check engine light on 2015 Dodge Journey in 2026 process, always prioritize accuracy over speed. A clean, verified reset saves time and money long-term.

FAQs About How to Reset Check Engine Light on 2015 Dodge Journey in 2026

Q1: Can I reset the check engine light without a scanner?
Yes, but it’s not ideal. You can disconnect the battery, but it resets all electronics and doesn’t verify the fix. An OBD2 scanner is faster, safer, and more reliable. For the how to reset check engine light on 2015 Dodge Journey in 2026 method, a scanner is strongly recommended.

Q2: Will resetting the light pass an emissions test?
Only if the issue is fixed and all emissions monitors are “ready.” Some states require all monitors (like EVAP, O2 sensors) to complete their checks. Use your scanner to verify readiness before the test.

Q3: How long does it take for the light to reset after a repair?
It depends. Simple fixes (like a gas cap) may auto-clear after 20–30 minutes of driving. Complex issues (like a bad catalytic converter) may need 3–5 drive cycles over several days. A manual reset with a scanner works instantly—but only if the problem is gone.

Q4: Why does the check engine light come back on after resetting?
The most common reason: the underlying problem wasn’t fixed. For example, a loose gas cap that wasn’t tightened, or a faulty sensor that wasn’t replaced. Re-scan the code and address the root cause.

Q5: Is it safe to drive with the check engine light on?
If it’s flashing, stop driving—it’s a serious misfire that can damage the engine. If it’s steady, you can drive short distances, but get it checked soon. Ignoring it risks costly repairs.

Q6: Can I reset the light at an auto parts store?
Yes! Most stores (like AutoZone, O’Reilly) offer free code reading and resetting. But they won’t fix the problem. It’s a quick fix, but only do it if you’ve already made repairs.

Q7: Does the 2015 Dodge Journey have any special reset procedures?
No. It uses the standard OBD2 protocol. However, some models have specific drive cycle requirements for emissions monitors. Your scanner app will usually guide you through these.

Final Thoughts

Knowing how to reset check engine light on 2015 Dodge Journey in 2026 gives you control over your vehicle’s health. It’s not about hiding problems—it’s about confirming fixes and maintaining peace of mind.

The key is to diagnose, repair, and verify. Use a quality OBD2 scanner, follow the steps carefully, and never skip the test drive. Avoid shortcuts like battery disconnects unless absolutely necessary.

Remember: The check engine light is a friend, not an enemy. It protects your engine and keeps your Journey running smoothly. Respect it, address it, and reset it—the right way.

Now that you’re equipped with the knowledge, grab your scanner and take action. A few minutes of effort can save you hundreds in repairs and keep your Dodge Journey on the road for years to come.

Action Step: Bookmark this guide and keep your scanner in the glovebox. Next time the light comes on, you’ll know exactly what to do.