Reset your 2017 Dodge Journey’s check engine light in 2026 by first diagnosing the issue with an OBD2 scanner—never ignore the underlying problem. Once repairs are confirmed, clear the code using the scanner or by disconnecting the battery for 10 minutes to force an ECU reset. Always verify the light stays off after a test drive to ensure a complete, safe resolution.

How to Reset Check Engine Light on 2017 Dodge Journey in 2026

Key Takeaways

• Diagnose first: Always scan for trouble codes before resetting the light.
• Use an OBD2 scanner: Essential for safely clearing codes and resetting the light.
• Address root causes: Fix underlying issues to prevent light from returning.
• Battery disconnect method: Temporary fix; may erase ECU memory settings.
• Drive cycle required: Complete a drive cycle for monitors to reset fully.
• Check battery health: Weak batteries can trigger false check engine alerts.

Why This Matters / Understanding the Problem

You’re driving your 2017 Dodge Journey, and suddenly—bam—the check engine light comes on. It’s not flashing, but it’s there, glowing like a tiny orange beacon of stress. You start wondering: Is my car about to break down? Did I forget to tighten the gas cap? Or is it something serious?

The check engine light (CEL) is your car’s way of saying, “Hey, I’ve detected a problem.” It could be as simple as a loose gas cap or as complex as a failing oxygen sensor. But here’s the thing: just resetting the light without diagnosing the issue is a bad idea. That’s why knowing how to reset check engine light on 2017 Dodge Journey in 2026 is important—but only after you’ve made sure everything is okay.

Resetting the light won’t fix the underlying problem. But if you’ve already fixed the issue—or if you’re troubleshooting and want to test your repair—resetting the light is a necessary step. This guide will walk you through the safe, correct, and effective way to do it, whether you’re using a scan tool, disconnecting the battery, or using the ignition method. We’ll also cover what you need, common pitfalls, and how to avoid making things worse.

What You Need

Before you dive into resetting the check engine light, gather the right tools. The method you choose will determine what you need. Here’s a quick list of common tools and materials:

• OBD2 scanner (recommended): A basic code reader or advanced diagnostic tool. This is the safest and most accurate method. Brands like BlueDriver, Ancel, or even a $20 Amazon scanner work fine.
• 10mm wrench or socket: For disconnecting the battery (if using the battery method).
• Insulated gloves (optional but smart): For safety when working with the battery.
• Owner’s manual: For fuse box locations and reset procedures specific to your 2017 Dodge Journey.
• Notebook or phone: To write down any error codes before resetting—this is crucial for diagnosis.
• Parking space with good ventilation: Never work on a hot engine or in a closed garage.

Note: If you don’t have a scanner, you can still reset the light, but you won’t know why it came on. That’s like turning off a fire alarm without checking for flames. The how to reset check engine light on 2017 Dodge Journey in 2026 process is only effective if you’ve already addressed the root cause.

Pro Insight: A $30 OBD2 scanner is a smart investment. It reads codes, clears them, and gives you real-time data. Think of it as a stethoscope for your engine.

Step-by-Step Guide to How to Reset Check Engine Light on 2017 Dodge Journey in 2026

There are three main ways to reset the check engine light. We’ll cover each, from the most recommended to the least, so you can pick the one that fits your tools and comfort level.

Step 1: Diagnose the Issue First (Non-Negotiable)

Before you even think about resetting the light, find out what caused it. The check engine light is tied to the On-Board Diagnostics II (OBD2) system, which stores trouble codes.

• Locate the OBD2 port: It’s usually under the dashboard, near the steering column, on the driver’s side. In the 2017 Dodge Journey, it’s about 6 inches below the steering wheel, slightly to the right.
• Plug in your OBD2 scanner. Turn the ignition to “ON” (don’t start the engine).
• Follow the scanner’s menu to “Read Codes.” You’ll see something like “P0455” or “P0171.”
• Write down the code(s). Use the scanner’s built-in guide or search online to interpret them.

Example: A “P0455” code means a large EVAP system leak—often a loose gas cap. A “P0300” means random misfires, which could be spark plugs or fuel issues.

Warning: Never reset the light without reading the code. You could mask a serious problem like a catalytic converter failure, which can cost $1,000+ to fix.

Once you’ve identified and fixed the issue (e.g., tightened the gas cap, replaced a spark plug), you’re ready to reset.

Step 2: Use an OBD2 Scanner to Reset the Light (Best Method)

This is the gold standard for how to reset check engine light on 2017 Dodge Journey in 2026. It’s fast, safe, and gives you full control.

• With the scanner still connected and ignition on, go to the “Clear Codes” or “Reset” option.
• Confirm the reset. The scanner will erase the stored codes and turn off the light.
• Turn the ignition off, wait 10 seconds, then turn it back on. The light should stay off.
• Drive the car for 10–15 minutes. The ECU needs time to “relearn” and run its self-tests.

Why this works: The scanner communicates directly with your car’s computer (ECU), clearing the fault memory and resetting readiness monitors. This is the same method dealerships use.

Bonus: Some scanners let you view live data (like oxygen sensor readings or fuel trim) to confirm the repair worked.

Pro Tip: After resetting, the light may come back if the problem isn’t fully fixed. If it returns, recheck the codes—you might have missed something.

Step 3: Try the Ignition Key Method (No Scanner)

If you don’t have a scanner, you can try a “key cycle” method. It’s not guaranteed, but it works for some 2017 Dodge Journey owners.

• Turn the ignition to “ON” (don’t start the engine). Wait 3 seconds.
• Turn it to “OFF.” Wait 3 seconds.
• Repeat this cycle three times, ending with the key in “ON.”
• After the third cycle, the check engine light should start flashing. Wait for it to flash 10 times.
• Turn the key to “OFF” and remove it. Wait 10 seconds.
• Start the engine. The light may be off—or it may stay on.

What’s happening: This method tries to trigger the ECU’s reset sequence. But it’s not always reliable. In many cases, the light will only go off if the original problem is completely resolved.

Limitation: This method doesn’t clear the stored codes. The ECU still remembers the issue, so the light may return after a few drive cycles.

Caution: If the light flashes rapidly during this process, stop immediately. That means the ECU detected a misfire or other serious fault. Driving could damage the engine.

Step 4: Disconnect the Battery (Last Resort)

This method resets the ECU by cutting power to it. It’s effective but has side effects.

• Turn the car off and remove the key. Open the hood.
• Locate the negative terminal on the battery (marked “-”). Use a 10mm wrench to loosen the nut.
• Remove the negative cable. Wait at least 15 minutes (30 minutes is better).
• Reconnect the cable and tighten the nut. Close the hood.
• Turn the ignition to “ON.” The light should be off.
• Start the engine and drive normally.

Why wait 15+ minutes? The ECU stores temporary data in capacitors. Cutting power for less than 15 minutes may not fully reset it.

Side effects: This method resets all ECU memory, including:

• Radio presets
• Clock
• Seat positions (if power seats)
• Adaptive transmission settings (may feel “rough” at first)

Important: After reconnecting the battery, your car may need 10–20 minutes of driving to relearn idle settings and transmission shifts. This is normal.

Step 5: Drive and Confirm the Light Stays Off

No matter which method you used, don’t assume it worked until you drive the car.

• Drive for 10–15 minutes, including highway speeds if possible.
• The ECU runs self-diagnostic tests during this time.
• If the light stays off, great! The issue is likely resolved.
• If it comes back on, recheck the codes. The problem may be intermittent or not fully fixed.

Example: You fixed a loose gas cap, reset the light, but it comes back after driving 5 miles. That means the EVAP system is still detecting a leak—maybe the cap is damaged or the hose is cracked.

This step is critical for how to reset check engine light on 2017 Dodge Journey in 2026 the right way—not just turning it off, but making sure it stays off.

Pro Tips & Common Mistakes to Avoid

Resetting the check engine light seems easy, but small mistakes can cause big problems. Here’s what the pros know—and what you should avoid.

Pro Tip 1: Always Read the Code First

You wouldn’t take painkillers without knowing why you’re in pain. Same with the check engine light. Reading the code tells you what’s wrong so you can fix it—not just hide it.

Example: A “P0171” code means your engine is running lean (too much air, not enough fuel). Resetting the light without fixing the fuel injector or vacuum leak will only delay the inevitable.

Pro Tip 2: Use the Right Scanner

Not all OBD2 scanners are equal. Cheap $15 scanners may read codes but fail to clear them properly. Invest in a reliable one (like Ancel AD310 or BlueDriver) that can also reset readiness monitors.

Pro Tip 3: Don’t Reset After a Recent Repair Too Soon

After fixing an issue (e.g., replacing a sensor), drive the car for a day or two before resetting. Some systems need time to “confirm” the fix.

Example: If you replace an oxygen sensor, the ECU needs to see consistent readings before it stops flagging the old sensor’s data.

Common Mistake 1: Ignoring a Flashing Light

A flashing check engine light means a serious misfire that can damage the catalytic converter. If it’s flashing, pull over, turn off the engine, and get the car towed. Do not try to reset it.

Common Mistake 2: Disconnecting the Battery Without a Memory Saver

If you’re disconnecting the battery, use a memory saver device (a small plug that keeps power to the ECU). It preserves radio presets and settings. Or, plug in a phone charger before disconnecting to maintain voltage.

Common Mistake 3: Resetting Before Fixing the Root Cause

This is the #1 mistake. People reset the light and think, “Problem solved!” But the light will come back—and the repair cost could be higher.

Real-life story: A friend reset his CEL after a misfire, drove 100 miles, and the catalytic converter melted. Cost: $1,200. The misfire damaged it because he drove too long with the fault active.

Pro Tip 4: Check for Pending Codes

Some scanners show “pending” codes—issues that haven’t triggered the light yet. These can help you catch problems early. For example, a pending “P0420” (catalyst efficiency) means your catalytic converter is failing.

FAQs About How to Reset Check Engine Light on 2017 Dodge Journey in 2026

Let’s answer the most common questions drivers have—straight, no fluff.

Q1: Can I reset the check engine light without a scanner?

Yes, but it’s not ideal. You can use the ignition key method or disconnect the battery. However, these don’t clear stored codes or reset readiness monitors. The light may come back, and you won’t know why it was on in the first place. For a reliable fix, a scanner is best.

Q2: Will disconnecting the battery reset the check engine light?

Yes, but it’s a nuclear option. It resets the light and clears all ECU memory. You’ll lose radio presets, clock, and transmission settings. Only use this if you don’t have a scanner and the key method failed. And always wait at least 15 minutes before reconnecting.

Q3: How long does it take for the check engine light to reset?

With a scanner: instantly. The light turns off as soon as you clear the codes. With battery disconnect: up to 30 minutes (wait time) plus 10–15 minutes of driving to confirm. The key method: 5–10 minutes, but success isn’t guaranteed.

Q4: Why does the check engine light come back after I reset it?

Because the underlying problem isn’t fixed. The ECU detects the same fault during its next self-test. For example, if a vacuum hose is cracked, the EVAP system will detect a leak again. Always diagnose and repair first.

Q5: Is it safe to drive with the check engine light on?

If it’s steady, it’s usually safe to drive for a short distance—but get it checked soon. If it’s flashing, stop driving immediately. A flashing light means severe misfiring, which can destroy the catalytic converter in minutes.

Q6: Can I reset the check engine light at AutoZone?

Yes! Many AutoZone, O’Reilly, and Advance Auto Parts stores offer free code reading and light clearing. Just bring your car in, and they’ll plug in a scanner, read the code, and reset the light. But remember: they won’t fix the problem—just clear the code.

Pro tip: Ask them to print the code and description. Take it home and research the fix before resetting.

Q7: How many miles do I need to drive to fully reset the system?

After resetting, your 2017 Dodge Journey needs about 100–150 miles of mixed driving (city and highway) to complete all ECU self-tests. This is called “readiness monitors.” Some emissions tests require all monitors to be “ready” before you can pass.

Final Thoughts

Knowing how to reset check engine light on 2017 Dodge Journey in 2026 is a valuable skill—but it’s only one part of car care. The real power comes from understanding what the light means and taking action to fix the problem, not just hiding it.

Start with a scan. Read the code. Fix the issue. Then reset. And always drive a bit afterward to make sure the light stays off. Whether you use a $20 scanner, the ignition method, or (as a last resort) the battery disconnect, the key is doing it the right way.

Remember: The check engine light is your car’s way of asking for help. Don’t ignore it. Don’t panic. Just take a breath, get the right tools, and follow these steps. Your 2017 Dodge Journey will thank you—and you’ll avoid costly repairs down the road.

Your next move: If the light is on right now, grab an OBD2 scanner (or visit a local auto parts store), read the code, and start troubleshooting. The sooner you act, the better your chances of a quick, affordable fix.

Drive safe, stay informed, and keep that engine light under control.