To reset the check engine light on a 2015 Chrysler 200 in 2026, first diagnose and fix the underlying issue using an OBD2 scanner—never ignore persistent codes. Once resolved, use the scanner to clear the codes, or disconnect the battery for 10 minutes to force a reset, though this may erase radio presets. Always verify the fix by driving the vehicle and ensuring the light stays off.

How to Reset Check Engine Light on 2015 Chrysler 200 in 2026

Key Takeaways

• Diagnose first: Always scan for error codes before resetting the light.
• Use an OBD2 scanner: Plug into the port under the dashboard to reset.
• Battery disconnect works: Turn off ignition, disconnect battery for 15+ minutes.
• Clear codes safely: Ensure repairs are complete to avoid recurring issues.
• Verify reset success: Start the car and confirm the light stays off.
• Prevent future triggers: Maintain regular engine and sensor checks.
• Avoid quick fixes: Temporary resets without repairs can cause long-term damage.

Why This Matters / Understanding the Problem

The check engine light on your 2015 Chrysler 200 is like a car’s way of saying, “Hey, something’s off.” It could be as simple as a loose gas cap or as serious as a failing catalytic converter. Ignoring it might lead to poor fuel economy, reduced performance, or even expensive repairs down the road.

If you’ve recently fixed the issue—say, replaced a faulty oxygen sensor or tightened the gas cap—you’ll want to know how to reset check engine light on 2015 Chrysler 200 in 2026 to confirm the problem is truly gone. But here’s the catch: resetting the light without fixing the root cause is a temporary fix at best. In fact, it can mask real issues and even cause you to fail an emissions test.

By learning the correct way to reset the light, you’re not just clearing a warning—you’re ensuring your car runs safely and efficiently. Whether you’re a DIY mechanic or just trying to avoid another trip to the shop, this guide will walk you through the process step by step, using tools you might already have at home.

Plus, with emissions regulations tightening in 2026, knowing how to manage your OBD-II system responsibly is more important than ever. This guide focuses on safe, ethical methods to reset check engine light on 2015 Chrysler 200 in 2026—without risking your car’s health or your wallet.

What You Need

Before you start, gather the right tools. You don’t need a full garage setup—just a few key items. Here’s what you’ll need to reset check engine light on 2015 Chrysler 200 in 2026 safely and effectively:

• OBD2 Scanner (On-Board Diagnostics Tool): This is the most reliable and recommended method. Look for a basic code reader (like the BlueDriver, Ancel AD310, or BAFX Products 34t5). These cost $20–$60 and are worth every penny.
• Smartphone or Tablet (optional): If your scanner connects via Bluetooth, you can use an app like Torque Pro or OBD Fusion for more detailed diagnostics.
• 12-Volt Car Battery or Charger: Make sure your battery is charged. A weak battery can cause false error codes or prevent the system from resetting properly.
• Owner’s Manual (or online PDF): For locating the OBD2 port and understanding any specific warnings.
• Flashlight (optional): The OBD2 port is under the dashboard, so good lighting helps.
• Pen and Paper or Notes App: To record any error codes you find before resetting.

Pro Tip: Never use a “trick” like disconnecting the battery to reset the check engine light. It might work short-term, but it clears all system data (including adaptive fuel trims), can trigger new codes, and may even disable safety features. Always use an OBD2 scanner for a proper reset.

Step-by-Step Guide to How to Reset Check Engine Light on 2015 Chrysler 200 in 2026

Step 1: Park Safely and Turn Off the Engine

Start by pulling over to a flat, safe area—like your driveway or a parking lot. Turn off the engine and remove the key (or press the start button to shut down).

Let the car sit for at least 30 seconds. This allows the engine control module (ECM) to fully power down. Why? Because some systems need time to reset their internal memory before you can access or clear codes.

Make sure the car is in Park and the parking brake is engaged. Safety first—especially if you’re working under the dash.

Step 2: Locate the OBD2 Port

On your 2015 Chrysler 200, the OBD2 port is located under the dashboard on the driver’s side—usually near the steering column, about knee height.

It’s a 16-pin trapezoidal connector, often covered by a small plastic flap. If you can’t see it, use a flashlight or refer to your owner’s manual (page 345 in most 2015 Chrysler 200 manuals).

Once you find it, plug your OBD2 scanner into the port. Push it in firmly until it clicks—don’t force it. A loose connection can lead to failed readings or incomplete resets.

Step 3: Turn the Ignition to “On” (Do Not Start the Engine)

Insert the key and turn it to the “On” position. You should see the dashboard lights illuminate—but don’t start the engine.

The scanner will power up automatically. Wait for it to connect and display a welcome screen or menu. This usually takes 10–20 seconds.

If the scanner doesn’t power on, double-check the ignition and try reseating the scanner. Some models need the ignition on to draw power from the car’s system.

Step 4: Read and Record the Trouble Codes

This is the most important step before resetting the check engine light. Never skip it.

Navigate your scanner to “Read Codes” or “DTCs” (Diagnostic Trouble Codes). The device will scan your car’s ECM and display one or more codes—like P0171 (System Too Lean) or P0457 (Evaporative Emission System Leak Detected).

Write down every code. These tell you why the light came on. For example, P0420 often means a failing catalytic converter, while P0456 might point to a loose gas cap or cracked hose.

Use your phone to look up each code online (or use a scanner app with a built-in database). This helps you confirm the issue has been fixed before resetting. Remember: you can’t safely reset the light if the problem is still present.

Step 5: Clear the Codes (Reset the Light)

Once you’re confident the underlying issue is resolved, go back to your scanner menu and select “Clear Codes” or “Erase DTCs.”

Confirm the action when prompted. The scanner will send a signal to your car’s computer to wipe the stored trouble codes and turn off the check engine light.

You should see a message like “Codes Cleared” or “DTCs Erased.” The light on your dashboard should go off within a few seconds.

If the light stays on, the scanner may display a message like “Codes Not Cleared” or “System Busy.” This usually means the car hasn’t completed its self-tests. Don’t panic—just move to Step 6.

Step 6: Perform a Drive Cycle (If Needed)

Some codes—especially emissions-related ones—require the car to complete a “drive cycle” before the light stays off. A drive cycle is a specific pattern of driving that lets the car’s computer run its internal tests.

For a 2015 Chrysler 200, a typical drive cycle includes:

• Start with a cold engine (parked overnight).
• Drive at 20–30 mph for 2–3 minutes (to warm up the engine).
• Accelerate to 55 mph and hold for 3–5 minutes.
• Slow to 20 mph without using the brakes (coasting).
• Stop and idle for 20–30 seconds.
• Repeat the acceleration to 55 mph and coast again.
• Drive normally for 5–10 minutes, including a few stops and starts.

This process can take 15–30 minutes and should be done on a quiet road. After completing the drive cycle, the car’s computer will re-run its tests. If no issues are found, the check engine light should stay off.

You can use your OBD2 scanner to check if the “Monitors” (emissions tests) show “Ready” status. Once all monitors are ready, the light is less likely to return.

Step 7: Verify the Reset

After your drive cycle, turn the car off and wait 30 seconds. Then restart the engine.

Check the dashboard: the check engine light should not come back on. If it does, the issue wasn’t fully resolved.

Reconnect your OBD2 scanner and read the codes again. This time, you might see new or recurring codes. That tells you the problem is still there—like a vacuum leak or failing sensor.

If the light stays off, great! You’ve successfully reset the check engine light. But keep an eye on it for the next few days. Some codes take time to reappear.

Step 8: Reset the Oil Change Light (Bonus Step)

While you’re under the dash, you might as well reset the oil change reminder—especially if it’s also lit up.

To do this on a 2015 Chrysler 200:

1. Turn the ignition to “On” (don’t start the engine).
2. Press and hold the Trip button on the steering wheel.
3. After 10 seconds, the “Oil Change” or “Service” message should flash, then reset to 100%.
4. Release the button. Done!

This isn’t part of the check engine reset, but it’s a handy bonus when you’re already in the zone.

Pro Tips & Common Mistakes to Avoid

Resetting the check engine light isn’t hard—but there are pitfalls that can waste your time or damage your car. Here’s what seasoned mechanics wish every driver knew about how to reset check engine light on 2015 Chrysler 200 in 2026.

Pro Tip 1: Always read the codes before clearing them. It’s like treating a fever without knowing if it’s from the flu or food poisoning. You might clear the light, but the real problem lingers.

Pro Tip 2: Use a quality OBD2 scanner with live data. Basic code readers only show codes. Advanced models (like BlueDriver) let you view live sensor data—like oxygen sensor voltages or fuel trims—so you can confirm a fix worked.

Pro Tip 3: Don’t reset the light right after a repair. Wait 24 hours or drive a few miles. Some systems need time to relearn. For example, after replacing a spark plug, the ECM needs to re-adjust fuel trims.

Warning: Disconnecting the battery to reset the light is a bad idea. It clears the ECM’s memory, which can cause rough idling, poor fuel economy, or even stalling. It also resets the radio presets, clock, and seat memory—annoying and unnecessary.

Common Mistake: Assuming “No Codes” means “No Problem.” Some issues (like intermittent misfires) don’t store codes until they happen multiple times. If the light comes back, don’t just reset it again—investigate.

Pro Tip 4: Keep a log of your codes and fixes. Use a notebook or phone app. This helps track recurring issues and impresses mechanics when you do need help.

Common Mistake: Ignoring readiness monitors. In states with emissions testing (like California), your car must pass an OBD2 test. If monitors aren’t “ready,” you’ll fail—even if the light is off. Always complete a drive cycle before a test.

Pro Tip 5: If the light returns within a week, the issue is likely serious. Don’t keep resetting it. Get a professional diagnostic. Some problems (like a failing transmission or head gasket) need expert attention.

FAQs About How to Reset Check Engine Light on 2015 Chrysler 200 in 2026

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

Technically, yes—but it’s not recommended. Some people try disconnecting the battery or using the “ignition key trick” (turning the key to “On-Off-On-Off-On” while pressing the gas pedal). These methods might turn off the light temporarily, but they don’t clear the underlying code. The light will likely return, and you risk damaging the ECM. For a reliable, permanent fix, use an OBD2 scanner to reset check engine light on 2015 Chrysler 200 in 2026.

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

This usually means the problem wasn’t fully fixed. For example, if the code was P0457 (gas cap issue), but you only tightened the cap without checking the seal, the leak remains. The car’s computer will detect it again and turn the light back on. Always fix the root cause—don’t just clear the code.

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

It depends. Some codes clear immediately after a fix. Others need a drive cycle (15–30 minutes of driving). In rare cases, it can take a few days and multiple drive cycles. Use your scanner to check if the monitors are “ready.” That’s the best way to know if the reset is complete.

Q4: Will resetting the check engine light affect my car’s performance?

Only if you do it wrong. Using a proper OBD2 scanner won’t hurt performance. But if you disconnect the battery, you’ll lose adaptive fuel trims, which can cause rough idle or poor acceleration until the ECM relearns. Always use a scanner for a safe reset.

Q5: Can I reset the light at an auto parts store?

Yes! Most auto parts stores (like AutoZone, O’Reilly, or Advance Auto) offer free code reading and clearing. They’ll plug in a scanner, read your codes, and reset the light at no cost. However, they won’t fix the problem for you. It’s a great option if you don’t own a scanner—just remember to ask what the codes mean.

Q6: Is it legal to reset the check engine light?

Yes—as long as you’ve fixed the issue. It’s illegal to disable the light or clear codes to pass an emissions test without repairs. In many states, tampering with the OBD2 system can result in fines. Always fix the problem first, then reset the light responsibly.

Q7: What if my 2015 Chrysler 200 has multiple codes?

That’s common. Multiple codes often point to one root cause. For example, P0171 (lean fuel mix) and P0300 (random misfire) might both be caused by a vacuum leak. Fix the main issue, and the others may resolve on their own. Use your scanner to identify the most severe code first, then address the others.

Final Thoughts

Knowing how to reset check engine light on 2015 Chrysler 200 in 2026 gives you control, saves money, and helps you avoid unnecessary trips to the mechanic. But remember: resetting the light is the last step—not the first.

Always diagnose the problem using an OBD2 scanner, fix the root cause, and complete a drive cycle if needed. This ensures the light stays off and your car runs safely and efficiently.

Keep your scanner handy. It’s one of the most useful tools you can own—especially as emissions standards get stricter in 2026. Whether it’s a loose gas cap or a failing sensor, being proactive saves time, money, and stress.

And if the light keeps coming back? Don’t keep resetting it. Get a professional inspection. Some issues are too complex for DIY fixes—and that’s okay. The goal isn’t to avoid the mechanic; it’s to be an informed car owner.

So next time your check engine light pops on, don’t panic. Grab your scanner, follow these steps, and take charge. Your 2015 Chrysler 200 will thank you—and so will your wallet.