Resetting the check engine light on a 2013 Dodge Challenger is quick and safe when done correctly—always start by diagnosing the underlying issue with an OBD2 scanner to avoid masking serious problems. Once the fault is resolved, simply disconnect the battery for 10–15 minutes or use the scanner to clear codes and turn off the light. Never skip diagnosis—resetting without fixing the root cause can lead to costly engine damage and failed emissions tests.

How to 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger

Key Takeaways

• Diagnose first: Always scan for codes before resetting to avoid masking serious issues.
• Use an OBD2 scanner: Plug into the port under the dash for accurate code reading.
• Disconnect battery: Remove negative terminal for 15+ minutes to force ECU reset.
• Complete drive cycle: Drive 50-100 miles post-reset to ensure system readiness.
• Avoid quick fixes: Tapping gas pedal or fuse removal rarely works reliably.
• Verify repair success: Recheck for codes after reset to confirm problem resolution.

Why This Matters / Understanding the Problem

That little orange engine symbol glowing on your 2013 Dodge Challenger’s dashboard isn’t just annoying—it’s a warning sign. The check engine light (CEL) can mean anything from a loose gas cap to a failing oxygen sensor. Ignoring it might lead to costly repairs down the road, reduced fuel efficiency, or even engine damage.

But here’s the catch: sometimes the issue has already been fixed, yet the light stays on. That’s where knowing how to reset the check engine light on a 2013 Dodge Challenger comes in handy. Whether you’ve replaced a faulty part, fixed a vacuum leak, or just want to clear a minor code, a proper reset helps confirm everything is back to normal.

Using the 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger method isn’t just about turning off the light—it’s about understanding your car’s health. This guide walks you through safe, effective ways to reset the light, whether you’re using an OBD2 scanner or the manual key-cycle method. No guesswork, no dealership trips—just clear, practical steps.

Why wait? A quick reset can save you time, money, and stress. And if the light comes back on? You’ll know it’s time to dig deeper. Let’s get started.

What You Need

Before you begin, gather these tools and materials. Most are easy to find, and some you may already have at home.

• OBD2 Scanner (recommended) – A basic code reader or full-featured diagnostic tool. Brands like Innova, BlueDriver, or Autel work great. This is the safest and most accurate way to reset the light and read error codes.
• Ignition Key – For the manual reset method (key cycling). Make sure it fits your Challenger’s ignition.
• Fully Charged Battery – Low voltage can interfere with the ECU reset process. A weak battery might cause the light to return or prevent a proper reset.
• Owner’s Manual (optional but helpful) – For locating the OBD2 port and understanding dashboard indicators.
• Flashlight (if needed) – The OBD2 port is under the dashboard, near the steering column, and can be hard to see in low light.
• Notebook or Phone – To jot down any diagnostic trouble codes (DTCs) before resetting. This helps track recurring issues.

While the 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger includes a manual method, an OBD2 scanner is strongly recommended. It lets you confirm the root cause of the light before clearing it—so you don’t just mask a real problem.

Pro Tip: If you don’t own an OBD2 scanner, check with your local auto parts store. Many offer free diagnostic scans with no obligation to buy. Just bring your Challenger in, and they’ll pull the codes for you.

Step-by-Step Guide to 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger

Step 1: Identify the Root Cause (Don’t Skip This!)

Before you reset the check engine light, figure out why it came on. Clearing the light without fixing the issue is like putting a bandage on a broken leg—it might look better, but the problem remains.

Use your OBD2 scanner to connect to the diagnostic port (located under the driver’s side dashboard, near your left knee). Turn the ignition to “ON” (don’t start the engine), and power on the scanner. Follow the on-screen prompts to read the stored trouble codes.

Common codes in the 2013 Dodge Challenger include:

• P0455 – Large EVAP leak (often a loose or cracked gas cap)
• P0171 / P0174 – Lean fuel mixture (vacuum leak, dirty MAF sensor)
• P0300 series – Random cylinder misfire (bad spark plug, ignition coil)
• P0420 – Catalyst efficiency below threshold (failing catalytic converter)

Write down the codes. If you’re not sure what they mean, use the scanner’s built-in code library or search online. Fix the issue first—then reset.

Warning: Never reset the check engine light before addressing the code. For example, if the code is P0302 (cylinder 2 misfire), replacing the spark plug in that cylinder is essential. Resetting without fixing it could lead to engine damage.

Step 2: Fix the Issue (If Not Already Done)

Once you know the code, take action. Here are a few common fixes for your 2013 Dodge Challenger:

• Loose gas cap? Tighten it. Drive for 50–100 miles. The light may reset itself.
• Dirty MAF sensor? Spray with MAF cleaner (never touch the sensor wires). Let it dry, then reinstall.
• Bad spark plug? Replace the affected plug. Use OEM or high-quality aftermarket (NGK, Denso).
• Vacuum hose leak? Inspect hoses near the intake manifold. Replace any that are cracked or brittle.

After repairs, drive your Challenger for at least 30–50 miles under mixed conditions (city and highway). This helps the ECU relearn sensor values and complete its readiness monitors.

Why is driving important? The ECU won’t allow a permanent reset unless it confirms the issue is resolved. The 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger emphasizes this step because skipping it leads to frustration when the light returns.

Step 3: Connect the OBD2 Scanner (Recommended Method)

Now it’s time to reset. Plug your OBD2 scanner into the port under the dashboard. Turn the ignition to “ON” (engine off). The scanner will power up and communicate with the ECU.

Follow these steps:

1. Select “Read Codes” to confirm the old code is still present.
2. Select “Erase Codes” or “Clear DTCs.” Confirm when prompted.
3. Wait 10–15 seconds. The scanner will notify you when the reset is complete.
4. Turn the ignition off, then back on. The check engine light should now be off.

Some scanners have a “Reset Check Engine Light” button. Others require you to navigate through menus. Refer to your scanner’s manual if unsure.

Pro Tip: After erasing codes, use the scanner to check “Readiness Monitors.” These show if the ECU has completed self-tests (like O2 sensor, EVAP, etc.). For emissions testing, all monitors should be “Ready.”

Step 4: Use the Key-Cycle Method (Manual Reset)

If you don’t have an OBD2 scanner, use the manual key-cycle method. This forces the ECU to clear stored codes—but it’s less reliable and won’t let you read the original problem.

Here’s how:

1. Turn the ignition to “ON” (dashboard lights on, engine off).
2. Wait 10 seconds.
3. Turn the ignition to “OFF” and wait 10 seconds.
4. Repeat this cycle three times (ON-OFF, ON-OFF, ON-OFF).
5. After the third “ON,” wait 20 seconds. The check engine light should blink or turn off.
6. Start the engine. The light should remain off.

This method works because the ECU performs a self-check during each cycle. After three cycles, it clears stored codes if no active faults are detected.

Warning: This method only works if the issue is fully resolved. If the problem persists, the light will return within a few miles. Also, it may not clear all readiness monitors—so it’s not ideal for emissions testing.

Step 5: Disconnect the Battery (Alternative Method)

Another way to reset the check engine light is by disconnecting the car battery. This clears the ECU’s memory—but comes with trade-offs.

Steps:

1. Turn off the engine and remove the key.
2. Open the hood and locate the battery (front passenger side).
3. Use a 10mm wrench to loosen the negative terminal (black, marked “-”).
4. Disconnect the negative cable and wait 15–30 minutes.
5. Reconnect the terminal and tighten it securely.
6. Start the car. The check engine light should be off.

Why wait 15 minutes? The ECU needs time to fully discharge its capacitors. Less time may not clear all codes.

Warning: Disconnecting the battery resets all ECU settings. You’ll lose:

• Radio presets
• Clock time
• Seat memory (if equipped)
• Adaptive transmission settings (may feel “rough” for a few days)

Also, the light may return if the issue isn’t fixed. Use this method only as a last resort.

Step 6: Confirm the Reset Worked

After any reset method, verify the check engine light stays off. Start the engine and let it idle for 2–3 minutes. Watch the dashboard.

Then, take a short drive (5–10 miles) with some acceleration and deceleration. This helps the ECU detect any lingering issues.

If the light stays off, great! If it returns:

• Check for new trouble codes with your OBD2 scanner.
• Inspect for recent changes (e.g., fuel cap, recent repairs).
• Ensure all electrical connections are tight.

Sometimes, a code takes 1–2 drive cycles to reappear. The 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger recommends waiting 24–48 hours before assuming the reset failed.

Step 7: Reset the Oil Change Light (Bonus Step)

While you’re under the hood, why not reset the oil change reminder? It’s easy and keeps your dashboard clean.

Steps:

1. Turn the ignition to “ON” (engine off).
2. Press and hold the gas pedal all the way down.
3. Wait 10 seconds. The “Change Oil” message should flash, then turn off.
4. Release the pedal and start the engine.

This doesn’t affect the check engine light, but it’s a nice bonus. Now your Challenger’s dashboard is fully reset and ready for the road.

Pro Tips & Common Mistakes to Avoid

Resetting the check engine light isn’t rocket science—but a few missteps can cause headaches. Here’s what the pros know:

• Always read the codes first. Don’t guess. A $20 OBD2 scanner is cheaper than a $500 catalytic converter.
• Don’t ignore readiness monitors. If you’re due for emissions testing, make sure all monitors are “Ready” before resetting. It can take 100+ miles to complete them.
• Use the right scanner. A basic code reader only erases codes. A full scanner lets you view live data, freeze frames, and reset monitors.
• Check the gas cap. It’s the #1 cause of P0455 codes. Tighten it until it clicks 2–3 times.
• Clear codes after repairs, not before. Mechanics call this “chasing ghosts.” Fix it, then reset.
• Don’t use the battery method for routine resets. It’s overkill and resets too much. Use it only if the scanner and key-cycle methods fail.
• Keep a repair log. Note the date, code, fix, and reset method. This helps track patterns over time.

Common Mistake: Resetting the light right after a code appears—before fixing it. For example, if you just replaced a spark plug, wait 50 miles before resetting. The ECU needs time to confirm the repair worked.

Real-Life Scenario: A Challenger owner reset the light after a P0420 code. The light stayed off for a week, then returned. A mechanic found the catalytic converter was failing. The reset delayed the repair, increasing the final cost by $800.

The 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger isn’t just about turning off a light—it’s about smart car care. Take your time, fix the issue, and reset with confidence.

FAQs About 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger

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

Yes, using the key-cycle or battery-disconnect method. But these won’t let you read the original code. For a safe reset, an OBD2 scanner is best. The 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger recommends the scanner method for accuracy.

Q2: Why does the light come back on after I reset it?

The ECU detected the same issue again. This means the problem wasn’t fully fixed. Use your scanner to read the new code and address it. For example, a P0455 code returning after a reset likely means a cracked EVAP hose, not just a loose cap.

Q3: Will resetting the light pass emissions testing?

Only if all readiness monitors are “Ready.” After a reset, drive 100+ miles under mixed conditions. Use your scanner to check monitor status. If any show “Incomplete,” the test may fail. The 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger emphasizes this for compliance.

Q4: Is it safe to drive with the check engine light on?

If it’s a steady light, yes—but get it checked soon. If it’s blinking, stop driving immediately. A blinking light means severe misfire, which can damage the catalytic converter. Pull over, shut off the engine, and call for help.

Q5: How much does an OBD2 scanner cost?

Basic models start at $20–$40. Full-featured scanners (with live data, graphing, etc.) range from $60–$150. For most Challenger owners, a $30–$50 scanner is plenty.

Q6: Can a loose gas cap really cause the check engine light?

Absolutely. The EVAP system detects pressure leaks. A loose cap (or one that doesn’t click) triggers P0455 or P0457. Tighten it, drive 50 miles, and the light may reset itself.

Q7: What if the reset doesn’t work?

Try the key-cycle method. If that fails, use the battery method. If the light still won’t reset, the ECU may be detecting an active fault. Use your scanner to check for pending codes (not just stored ones). Or, visit a mechanic for a deeper diagnosis.

Final Thoughts

Resetting the check engine light on your 2013 Dodge Challenger doesn’t have to be stressful. With the right tools and a little know-how, you can do it yourself—safely and effectively.

Remember: the 2026 Guide How to Reset Check Engine Light on 2013 Dodge Challenger is about more than just turning off a light. It’s about understanding your car, fixing real issues, and avoiding costly repairs.

Start with an OBD2 scanner. Read the codes. Fix the problem. Then reset. Whether you use the scanner, key-cycle, or battery method, always confirm the light stays off after a test drive.

And here’s your action plan:

1. Buy a $30 OBD2 scanner (if you don’t have one).
2. Read the codes the next time your light comes on.
3. Fix the issue—don’t just reset it.
4. Clear the codes and verify the reset.
5. Keep a log for future reference.

Your Challenger is a powerful, reliable machine. Treat it right, and it’ll reward you with smooth rides, strong performance, and fewer surprises.

Now go reset that light—and enjoy the road ahead.