How to Reset Engine Light on 2013 Dodge Dart

Resetting the engine light on a 2013 Dodge Dart doesn’t have to be complicated. This guide walks you through safe, effective methods—from using an OBD2 scanner to manual resets—while emphasizing the importance of diagnosing the root cause first.

Key Takeaways

• Diagnose before resetting: Always identify and fix the underlying issue causing the engine light to come on before attempting a reset.
• Use an OBD2 scanner for best results: This tool reads error codes and safely clears the light without risking further damage.
• Battery disconnect is a last resort: While it may reset the light, it also erases important vehicle data and may not work on newer models.
• Check gas cap first: A loose or faulty gas cap is a common cause of the engine light in the 2013 Dodge Dart.
• Monitor the light after reset: If it returns, the problem persists and requires professional diagnosis.
• Regular maintenance prevents issues: Keeping up with oil changes, air filters, and spark plugs reduces the chance of engine light activation.
• Don’t ignore the light: Driving with an active engine light can lead to reduced performance, poor fuel economy, or serious engine damage.

How to Reset Engine Light on 2013 Dodge Dart

If you’ve noticed the dreaded “Check Engine” light glowing on your 2013 Dodge Dart’s dashboard, you’re not alone. This warning light can be alarming, but in many cases, it’s signaling a minor issue that you can address yourself. However, before you rush to turn it off, it’s crucial to understand what caused it in the first place. Simply resetting the light without fixing the problem is like turning off a smoke alarm while the fire still burns.

In this comprehensive guide, you’ll learn exactly how to reset the engine light on your 2013 Dodge Dart—safely and effectively. We’ll walk you through multiple methods, from using an OBD2 scanner to manual techniques like disconnecting the battery. You’ll also learn how to interpret error codes, troubleshoot common issues, and prevent future engine light activations. Whether you’re a DIY enthusiast or a first-time car owner, this guide is designed to give you confidence and clarity.

By the end of this article, you’ll know not only how to reset the engine light but also how to keep your Dodge Dart running smoothly for years to come.

Why the Engine Light Comes On

Before diving into reset methods, it’s important to understand why the engine light—also known as the Malfunction Indicator Lamp (MIL)—turns on in the first place. The 2013 Dodge Dart is equipped with an onboard diagnostics system (OBD2) that constantly monitors engine performance, emissions, and other critical systems. When the system detects a problem, it triggers the engine light to alert you.

Common causes include:
– A loose or damaged gas cap
– Faulty oxygen (O2) sensor
– Worn spark plugs or ignition coils
– Clogged air filter
– Mass airflow (MAF) sensor issues
– Catalytic converter problems
– Exhaust gas recirculation (EGR) valve malfunction

In many cases, the issue is minor and inexpensive to fix. For example, a loose gas cap is one of the most frequent culprits. If you’ve recently filled up your gas tank and the light came on shortly after, check the cap—it might just need to be tightened.

However, the engine light can also indicate serious problems like engine misfires or catalytic converter failure. Ignoring these issues can lead to reduced fuel efficiency, poor performance, or even engine damage. That’s why diagnosing the root cause is the first and most important step.

Tools You’ll Need

To reset the engine light on your 2013 Dodge Dart, you’ll need a few basic tools. The method you choose will determine what you need, but here’s a list of common items:

– OBD2 scanner (preferred method)
– Screwdriver or socket wrench (for battery disconnect)
– Owner’s manual (for reference)
– Pen and paper (to record error codes)
– Flashlight (to see under the dashboard)

An OBD2 scanner is the most reliable tool for this job. These devices plug into your car’s OBD2 port—usually located under the dashboard near the steering column—and read diagnostic trouble codes (DTCs). Many scanners also allow you to clear the codes and reset the engine light with the push of a button.

If you don’t own a scanner, you can purchase one online for as little as $20–$50. Basic models display codes, while advanced ones offer live data, code definitions, and even repair suggestions. Some auto parts stores also offer free code reading services, though they may not clear the light for you.

Method 1: Using an OBD2 Scanner (Recommended)

The safest and most effective way to reset the engine light on your 2013 Dodge Dart is by using an OBD2 scanner. This method allows you to read the error code, understand the problem, and clear the light—all without risking damage to your vehicle’s systems.

Step 1: Locate the OBD2 Port

The OBD2 port in the 2013 Dodge Dart is typically located under the dashboard on the driver’s side. It’s a 16-pin connector, usually black or gray, and may be covered by a small plastic flap. You might need to crouch down and use a flashlight to find it. It’s often near the steering column, just above the brake pedal.

Step 2: Plug in the Scanner

Turn off the ignition and insert the OBD2 scanner into the port. Make sure it’s securely connected. Some scanners have a power button, while others turn on automatically when plugged in.

Step 3: Turn on the Ignition

Turn the key to the “ON” position (but don’t start the engine). This powers up the vehicle’s electrical system and allows the scanner to communicate with the onboard computer.

Step 4: Read the Error Code

Follow the scanner’s instructions to read the diagnostic trouble code (DTC). Most scanners will display a code like “P0457” or “P0171.” Write this down—it tells you exactly what’s wrong.

For example:
– P0457: Evaporative Emission Control System Leak Detected (large leak)
– P0171: System Too Lean (Bank 1)

These codes often point to issues like a loose gas cap, faulty oxygen sensor, or vacuum leak.

Step 5: Research the Code

Use the scanner’s built-in code library or search online to understand what the code means. Websites like OBD-Codes.com provide detailed explanations and repair tips. Knowing the cause helps you decide whether to fix it yourself or visit a mechanic.

Step 6: Fix the Problem

Before resetting the light, address the underlying issue. For example:
– If the code indicates a gas cap problem, tighten or replace the cap.
– If it’s a faulty O2 sensor, you may need to replace it (this usually requires a mechanic).
– For a dirty air filter, simply replace it with a new one.

Fixing the problem ensures the light doesn’t come back on immediately.

Step 7: Clear the Code

Once the issue is resolved, use the scanner to clear the code. Most scanners have a “Clear Codes” or “Erase DTCs” option. Select it and confirm. The engine light should turn off.

Step 8: Test Drive

Start the engine and take your Dart for a short drive. This allows the onboard computer to run new tests and confirm the problem is fixed. If the light stays off, you’ve successfully reset it.

Method 2: Disconnecting the Battery (Alternative Method)

If you don’t have an OBD2 scanner, you can try resetting the engine light by disconnecting the battery. This method forces the vehicle’s computer to reset, which may clear the light. However, it’s not always reliable and comes with some risks.

Step 1: Turn Off the Engine

Make sure the car is completely off and the key is removed from the ignition.

Step 2: Locate the Battery

Open the hood and find the battery. In the 2013 Dodge Dart, it’s usually on the driver’s side, near the front of the engine bay.

Step 3: Disconnect the Negative Terminal

Use a wrench or socket to loosen the nut on the negative (black) battery terminal. Carefully remove the cable and set it aside, making sure it doesn’t touch the battery post.

Step 4: Wait 15–30 Minutes

Leave the battery disconnected for at least 15 minutes. This allows the vehicle’s computer to fully reset. Some experts recommend waiting up to 30 minutes for a complete reset.

Step 5: Reconnect the Battery

Reattach the negative cable and tighten the nut securely. Make sure the connection is tight to avoid electrical issues.

Step 6: Start the Engine

Turn the key to the “ON” position and then start the engine. The engine light may be off, but this isn’t guaranteed. If the problem wasn’t fixed, the light will likely return.

Important Notes

– Disconnecting the battery can reset other systems, including the radio presets, clock, and climate control settings. You may need to reprogram these.
– Some modern vehicles, including the 2013 Dodge Dart, have adaptive learning systems that may take several drive cycles to relearn after a reset.
– This method doesn’t diagnose the problem—it only clears the light. If the issue persists, the light will come back on.

Method 3: Drive Cycle Reset (Natural Reset)

In some cases, the engine light will turn off on its own after the problem is fixed and the vehicle completes a series of drive cycles. This is known as a “natural reset” and is handled by the car’s onboard computer.

A drive cycle is a specific pattern of driving that allows the computer to test various systems. For the 2013 Dodge Dart, a typical drive cycle includes:
– Starting the engine cold
– Driving at varying speeds (city and highway)
– Accelerating and decelerating smoothly
– Letting the engine reach normal operating temperature

After completing several drive cycles (usually 3–5), the computer may confirm that the issue is resolved and turn off the engine light automatically.

This method is free and requires no tools, but it can take days or even weeks. It’s best used in combination with fixing the underlying problem.

Troubleshooting Common Issues

Even after resetting the engine light, it may come back on. Here’s how to troubleshoot common problems:

Light Returns Immediately

If the light comes back on right after resetting, the problem wasn’t fixed. Recheck the error code and inspect related components. For example, if the code points to a gas cap, make sure it’s properly tightened or replace it if damaged.

Light Returns After a Few Days

This suggests an intermittent issue, such as a loose wire or a sensor that’s failing under certain conditions. Keep a log of when the light appears (e.g., after driving in rain, at high speeds) to help diagnose the cause.

Multiple Codes Appear

If your scanner shows several codes, prioritize the most severe ones. For example, a misfire code (P0300) is more urgent than a minor emissions issue. Address the critical problems first.

No Codes, But Light Is On

In rare cases, the engine light may come on without a stored code. This could indicate a software glitch or a sensor that’s not communicating properly. Try resetting the system again or visit a mechanic for a deeper diagnosis.

Preventing Future Engine Light Activations

The best way to avoid dealing with the engine light is to prevent it from coming on in the first place. Regular maintenance is key to keeping your 2013 Dodge Dart in top condition.

Check the Gas Cap Regularly

After every fill-up, make sure the gas cap is tight. A loose cap can trigger the engine light and reduce fuel efficiency.

Follow the Maintenance Schedule

Refer to your owner’s manual for the recommended service intervals. Key tasks include:
– Oil and filter changes every 3,000–5,000 miles
– Air filter replacement every 15,000–30,000 miles
– Spark plug replacement every 60,000–100,000 miles
– Fuel system cleaning every 30,000 miles

Use Quality Fuel and Parts

Fill up at reputable gas stations and use OEM or high-quality aftermarket parts. Cheap fuel or low-grade components can cause sensor errors and engine problems.

Monitor Dashboard Warnings

Pay attention to other warning lights, such as the oil pressure or battery light. Addressing small issues early can prevent bigger problems down the road.

When to See a Mechanic

While many engine light issues can be resolved at home, some problems require professional attention. Visit a certified mechanic if:
– The engine light is flashing (indicates a severe misfire)
– You notice poor performance, stalling, or rough idling
– The light comes back on after multiple resets
– You’re uncomfortable performing repairs yourself

A professional diagnosis ensures the problem is correctly identified and fixed, saving you time and money in the long run.

Conclusion

Resetting the engine light on your 2013 Dodge Dart is a manageable task, but it should never be done without understanding the cause. Using an OBD2 scanner is the safest and most effective method, allowing you to read error codes, fix the issue, and clear the light with confidence. While disconnecting the battery or waiting for a natural reset are alternatives, they come with limitations and risks.

Remember, the engine light is your car’s way of communicating a problem. Ignoring it or repeatedly resetting it without repairs can lead to costly damage. By following the steps in this guide, you’ll not only reset the light but also keep your Dodge Dart running smoothly and efficiently.

Stay proactive with maintenance, listen to your car, and don’t hesitate to seek professional help when needed. With the right knowledge and tools, you’ve got this.