Resetting the engine light on a 2013 Chevy Impala is simple with the right tools and steps. This guide covers manual methods, OBD2 scanners, and when to seek professional help.
Key Takeaways
- Understand the cause first: The engine light can indicate minor or serious issues—diagnose before resetting to avoid recurring problems.
- Use an OBD2 scanner for accuracy: A diagnostic tool reads error codes and safely resets the light without damaging the vehicle’s computer.
- Battery disconnect method works but has risks: Disconnecting the battery can reset the light, but may erase radio settings and adaptive learning data.
- Drive cycle completion may be needed: Some systems require a specific driving pattern after reset to confirm repairs and turn off monitors.
- Avoid cheap or unreliable tools: Invest in a quality OBD2 scanner compatible with GM vehicles for best results.
- Monitor the light after reset: If it returns, the issue persists—further diagnosis is essential to prevent engine damage.
- Regular maintenance prevents warnings: Keep up with oil changes, air filters, and spark plugs to reduce false or unnecessary alerts.
How to Reset Engine Light on 2013 Chevy Impala
Seeing the engine light illuminate on your 2013 Chevy Impala can be unsettling. Whether it’s a flashing or steady glow, that little orange symbol on your dashboard means your car’s onboard computer has detected a problem. But don’t panic—many causes are minor and easily fixable. The good news? Resetting the engine light on your 2013 Chevy Impala is straightforward, especially if you follow the right steps.
In this comprehensive guide, you’ll learn everything you need to know about resetting the engine light on your 2013 Chevy Impala. We’ll walk you through multiple methods—from using an OBD2 scanner to disconnecting the battery—and explain when each is appropriate. You’ll also discover how to interpret error codes, avoid common mistakes, and ensure the light stays off for good. Whether you’re a DIY enthusiast or a first-time car owner, this guide will help you take control of your vehicle’s health with confidence.
Understanding the Engine Light on Your 2013 Chevy Impala
Before you reset the engine light, it’s crucial to understand what it means. The engine light, also known as the Malfunction Indicator Lamp (MIL), is part of your car’s onboard diagnostic system (OBD2). When sensors detect irregularities—such as a misfire, emissions issue, or faulty oxygen sensor—the computer triggers the light to alert you.
On the 2013 Chevy Impala, the engine light can appear in two forms: steady or flashing. A steady light usually indicates a moderate issue that needs attention but isn’t an immediate threat. A flashing light, however, signals a severe problem—like a catalytic converter-damaging misfire—and requires immediate action.
Ignoring the light, especially if it’s flashing, can lead to costly repairs. For example, a small oxygen sensor issue can escalate into catalytic converter failure if left unchecked. That’s why diagnosing the root cause before resetting is essential.
Your 2013 Impala uses the OBD2 system, which has been standard in all vehicles since 1996. This system stores diagnostic trouble codes (DTCs) that pinpoint the source of the problem. These codes are your first clue in solving the issue—and they’re key to a successful reset.
Tools You’ll Need to Reset the Engine Light
Resetting the engine light doesn’t require a mechanic’s toolkit, but having the right tools makes the process faster, safer, and more effective. Here’s what you’ll need:
- OBD2 Scanner: This is the most reliable tool for reading and clearing codes. Look for one compatible with GM vehicles and capable of reading generic (P0xxx) and manufacturer-specific (P1xxx) codes.
- Owner’s Manual: Your Impala’s manual contains valuable info about fuse locations, battery terminals, and reset procedures.
- Basic Hand Tools: A wrench or socket set may be needed to disconnect the battery.
- Safety Gear: Gloves and safety glasses protect you during battery handling.
- Notepad and Pen: Jot down error codes before clearing them, in case you need to reference them later.
While you can reset the light without a scanner using the battery method, an OBD2 tool gives you full control and insight. It’s a worthwhile investment—even basic models cost under $30 and can save you hundreds in diagnostic fees.
Method 1: Using an OBD2 Scanner (Recommended)
The safest and most effective way to reset the engine light on your 2013 Chevy Impala is with an OBD2 scanner. This method allows you to read the trouble codes, understand the problem, and clear the light—all without risking damage to your vehicle’s electronics.
Step 1: Locate the OBD2 Port
The OBD2 port in your 2013 Impala is located under the dashboard on the driver’s side, near the steering column. It’s a 16-pin connector, usually black or gray, and easily accessible. You may need to crouch down to see it clearly. If you can’t find it, check behind a small cover or panel—some models have a removable cap.
Step 2: Turn Off the Ignition
Before plugging in the scanner, make sure the ignition is off. This prevents electrical surges and ensures a clean connection. Do not start the engine yet.
Step 3: Connect the OBD2 Scanner
Plug the scanner into the OBD2 port. It should fit snugly—there’s only one way to insert it. Once connected, turn the ignition to the “ON” position (but don’t start the engine). This powers up the scanner and allows it to communicate with the car’s computer.
Step 4: Read the Trouble Codes
Follow the scanner’s on-screen prompts to read the diagnostic trouble codes (DTCs). Most scanners will display codes like “P0420” or “P0171.” Write these down—they tell you exactly what’s wrong. For example, P0420 often means a failing catalytic converter, while P0171 indicates a lean fuel mixture.
Some scanners also provide plain-English descriptions of the codes, which is helpful if you’re not familiar with technical jargon. If your scanner doesn’t, you can look up the codes online using free resources like the National Highway Traffic Safety Administration (NHTSA) database.
Step 5: Address the Underlying Issue
Before clearing the code, fix the problem it represents. For instance, if the code points to a loose gas cap, tighten it and see if the light turns off after a few drives. If it’s a faulty sensor, replace it. Resetting the light without fixing the issue will only cause it to return.
Step 6: Clear the Codes
Once the issue is resolved, use the scanner to clear the codes. Look for an option like “Clear Codes,” “Erase DTCs,” or “Reset MIL.” Confirm the action when prompted. The scanner will send a signal to the car’s computer to turn off the engine light.
Step 7: Verify the Reset
Turn the ignition off, then back on. Check the dashboard—the engine light should be off. If it’s still on, the problem may not be fully resolved, or the system hasn’t completed its self-check. Drive the car for a short trip (10–15 minutes) to allow the computer to run its diagnostics.
Some systems, like the catalytic converter monitor, require a specific “drive cycle” to reset. This involves driving at varying speeds and conditions. Your scanner may have a “Monitor Status” feature that shows which systems are ready.
Method 2: Disconnecting the Battery (Alternative Method)
If you don’t have an OBD2 scanner, you can reset the engine light by disconnecting the car battery. This method forces the computer to reset by cutting power, but it’s less precise and comes with some drawbacks.
Step 1: Turn Off the Engine and Remove Keys
Make sure the car is off and the keys are out of the ignition. This prevents accidental electrical shorts.
Step 2: Locate the Battery
The battery in the 2013 Chevy Impala is under the hood, on the driver’s side. It’s a standard 12-volt lead-acid battery with positive (+) and negative (-) terminals.
Step 3: Disconnect the Negative Terminal
Use a wrench to loosen the nut on the negative (black) terminal. Remove the cable and secure it away from the battery post so it doesn’t accidentally reconnect. Do not disconnect the positive terminal first—this can cause sparks and damage.
Step 4: Wait 15–30 Minutes
Leave the battery disconnected for at least 15 minutes. This allows the car’s computer (ECU) to fully discharge and reset. Some recommend 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 ignition on and start the car. The engine light should be off. However, you may notice other systems—like the radio, climate control, or power windows—need to be reset. Some features, such as adaptive transmission learning, may take a few drives to recalibrate.
Important Note: This method does not diagnose the problem. If the issue persists, the light will return. Also, disconnecting the battery can erase stored data like radio presets, seat positions, and trip computer info.
Method 3: Drive Cycle Reset (For Specific Systems)
In some cases, simply clearing the code isn’t enough. Your 2013 Impala’s onboard computer runs self-tests called “monitors” to ensure emissions systems are working. These monitors must complete successfully before the engine light stays off permanently.
If you’ve fixed the issue but the light returns, your car may need to complete a drive cycle. This is a specific sequence of driving conditions that allows the computer to test systems like the catalytic converter, oxygen sensors, and evaporative emissions.
Typical Drive Cycle for 2013 Chevy Impala
- Start the engine cold (hasn’t been run for at least 8 hours).
- Let it idle for 2–3 minutes to warm up.
- Drive at 30–40 mph for 5 minutes.
- Accelerate to 55–60 mph and maintain speed for 10 minutes.
- Decelerate slowly without braking hard.
- Repeat the cycle 2–3 times.
After completing the drive cycle, check if the engine light remains off. You can also use your OBD2 scanner to check monitor status—look for “Ready” or “Complete” next to each system.
Troubleshooting Common Issues
Even with the right method, you might run into problems. Here’s how to handle common issues when resetting the engine light on your 2013 Impala:
Engine Light Comes Back On
If the light returns after resetting, the original problem wasn’t fixed. Use your OBD2 scanner to read the new code. It may be the same as before or a different one. For example, a P0420 code that keeps returning likely means the catalytic converter needs replacement.
Scanner Won’t Connect
If your OBD2 scanner doesn’t power on or communicate with the car, check the fuse for the OBD2 port. It’s usually in the under-hood fuse box. Also, ensure the ignition is on and the scanner is compatible with GM vehicles.
Battery Disconnect Didn’t Work
If disconnecting the battery didn’t reset the light, the issue may be more complex. Some systems require a scanner to clear codes. Also, if the car has been driven recently, the computer may not have fully reset. Try the battery method again with a longer wait time.
Radio or Settings Reset After Battery Disconnect
This is normal. To restore radio presets, re-enter your favorite stations. For climate or seat settings, consult your owner’s manual for reset procedures. Some features may require a dealership tool to fully restore.
Flashing Engine Light After Reset
A flashing light indicates an active misfire. Do not drive the car—this can damage the catalytic converter. Use the scanner to read the code and address the issue immediately. Common causes include bad spark plugs, ignition coils, or fuel injectors.
When to See a Mechanic
While many engine light issues can be resolved at home, some require professional help. Seek a certified mechanic if:
- The engine light is flashing.
- Multiple codes appear, especially related to transmission or engine performance.
- You’re unsure how to interpret or fix the code.
- The light returns repeatedly after resetting.
- You notice symptoms like rough idling, loss of power, or strange noises.
A mechanic has advanced diagnostic tools and can perform tests like compression checks or fuel pressure readings. They can also reset systems that require specialized procedures.
Preventing Future Engine Light Issues
The best way to avoid engine light problems is through regular maintenance. Here’s how to keep your 2013 Impala running smoothly:
- Change the oil every 5,000–7,500 miles. Dirty oil can trigger sensor errors.
- Replace air filters every 15,000–30,000 miles. A clogged filter reduces airflow and affects fuel mixture.
- Inspect spark plugs and ignition coils. Worn plugs cause misfires and trigger the light.
- Tighten the gas cap after every fill-up. A loose cap is a common cause of the P0455 code.
- Use quality fuel. Low-octane or contaminated gas can harm sensors and injectors.
- Check tire pressure regularly. While not directly related, low pressure can affect emissions systems.
Keeping up with these tasks reduces the chance of false alarms and keeps your Impala in top condition.
Conclusion
Resetting the engine light on your 2013 Chevy Impala is a manageable task when you know the right steps. Whether you use an OBD2 scanner, disconnect the battery, or complete a drive cycle, the key is to address the underlying issue first. Ignoring the problem won’t make it go away—and could lead to bigger repairs down the road.
By following this guide, you’ve learned how to safely and effectively reset the engine light, interpret error codes, and maintain your vehicle to prevent future warnings. Remember, the engine light is your car’s way of saying, “Hey, I need attention.” Listen to it, fix the issue, and reset with confidence.
With the right tools and knowledge, you can keep your 2013 Impala running smoothly for years to come. Stay proactive, stay informed, and drive safe.