Reset the Service Engine Soon light on your 2026 Infiniti G35 in minutes with a simple OBD2 scanner or manual key-cycle method. Locate the diagnostic port, connect the scanner, and follow the prompts—or use the ignition key to toggle through service modes without tools. This quick fix clears maintenance alerts and ensures your G35 stays road-ready.

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How to Reset Service Engine Soon Light Infiniti G35 in 2026

Key Takeaways

• Diagnose first: Always check for underlying issues before resetting the light.
• Use OBD2 scanner: Plug in to read and clear codes safely and accurately.
• Follow manual steps: Try the ignition-cycle method if no scanner is available.
• Reset post-maintenance: Clear the light only after completing required service work.
• Verify reset success: Confirm the light stays off after driving a short distance.
• Keep records: Log service dates and codes for future reference and resale value.

Why This Matters / Understanding the Problem

You’re driving your 2026 Infiniti G35 when suddenly, a yellow “Service Engine Soon” light flickers on your dashboard. Your heart skips a beat—is it serious? A flat tire? An oil leak?

The truth is, the Service Engine Soon light (SES) is a gentle nudge from your car’s onboard computer, not an emergency. It means your vehicle has detected a minor issue—like an emissions problem, loose gas cap, or scheduled maintenance reminder.

But here’s the catch: unlike the red “Check Engine” light, the SES doesn’t always require a mechanic. In many cases, it’s triggered by routine service intervals or simple sensor glitches. That’s why knowing how to reset Service Engine Soon light Infiniti G35 in 2026 can save you time, money, and stress.

Ignoring it? Not wise. Even minor issues can snowball if left unchecked. But resetting it without understanding the cause? That’s like silencing a smoke alarm while the kitchen’s still on fire.

So before we jump to resetting, let’s understand: the SES light is part of your car’s On-Board Diagnostics II (OBD-II) system. It monitors everything from oxygen sensors to catalytic converter efficiency. When it lights up, your car is saying, “Hey, let’s talk.”

Our goal? To help you diagnose, reset, and prevent future warnings—safely and confidently—using simple tools and smart steps. Whether you’re a DIY enthusiast or just want to avoid an unnecessary dealership visit, this guide covers how to reset Service Engine Soon light Infiniti G35 in 2026 like a pro.

What You Need

Before you start, gather these tools. Don’t worry—you probably have most of them at home or in your garage.

• OBD-II scanner (basic or advanced) – This is the must-have tool. It reads diagnostic trouble codes (DTCs) and resets the SES light. A $20–$50 Bluetooth scanner works fine.
• Smartphone or tablet (if using a Bluetooth OBD-II scanner) – Download a free app like Torque Lite, OBD Auto Doctor, or Car Scanner.
• Infiniti G35 2026 owner’s manual – Keep it handy for reference, especially for dashboard symbols and maintenance schedules.
• Work gloves and safety glasses – Not always needed, but smart for under-hood checks.
• Flashlight – Helps you see the OBD-II port and engine bay clearly.
• Pen and paper or phone notes – To write down error codes for future reference.

Optional but helpful:

• Multimeter – If you want to test battery voltage or sensor resistance.
• Replacement gas cap – If the code points to a loose or faulty cap.
• Infiniti G35 service records – Check if you’re due for oil change, air filter, or spark plug replacement.

Note: You do not need a dealership visit or special software to reset the light. With the right tools, how to reset Service Engine Soon light Infiniti G35 in 2026 is a 15-minute job.

Step-by-Step Guide to How to Reset Service Engine Soon Light Infiniti G35 in 2026

Step 1: Confirm the Light Is On and Check for Symptoms

First, verify the SES light is solid, not flashing. A flashing light means a severe problem (like misfire) that needs immediate attention. A solid light is usually less urgent.

Ask yourself: Has your car been running normally? Any strange noises, rough idling, or reduced fuel economy?

Example: If you just drove through a heavy rainstorm and the light came on, it might be a moisture-related sensor glitch. If the car feels sluggish, the issue could be deeper.

Take note of any symptoms. This helps you decide whether to reset now or fix first.

Tip: If the car is running poorly, don’t reset yet. Diagnose the issue first. Resetting without fixing could mask a real problem.

Step 2: Park Safely and Turn Off the Engine

Pull over to a safe spot—flat, level ground, away from traffic. Turn off the engine and remove the key (or press the power button to off).

Wait 30 seconds. This gives the car’s computer time to fully shut down and reset its temporary memory.

Why? Modern cars like the 2026 G35 have multiple ECUs (engine control units). A short pause ensures all systems are ready for diagnostics.

Keep your phone and OBD-II scanner nearby. You’ll need them in the next step.

Step 3: Locate the OBD-II Port

The OBD-II port is usually under the dashboard, near the driver’s left knee. In the 2026 Infiniti G35, it’s tucked behind a small plastic cover labeled “OBD” or shaped like a trapezoid.

Use your flashlight if needed. The port has 16 pins and looks like a wide USB port with two rows.

Don’t confuse it with the 12V power outlet or USB ports. The OBD-II port is not for charging—it’s for diagnostics.

Warning: Never force a connector into the port. It only fits one way. If it doesn’t slide in easily, check the orientation.

Step 4: Connect Your OBD-II Scanner

Plug your OBD-II scanner into the port. If it’s a Bluetooth model, turn it on and pair it with your phone.

For wired scanners: Power it on, then wait for it to connect to the car’s computer. You’ll see lights blinking or a “Connected” message.

For Bluetooth: Open your app (e.g., Torque), go to “Connect,” and select your scanner from the list. Wait 10–20 seconds for pairing.

Once connected, the app or scanner will show “Ready” or “Vehicle Connected.”

This is where the magic begins. You’re now talking directly to your car’s brain.

Step 5: Read the Diagnostic Trouble Codes (DTCs)

On your scanner or app, select “Read Codes” or “DTCs.” The device will scan all modules and return any stored errors.

Common codes for the SES light in the 2026 G35:

• P0440 – Evaporative Emission (EVAP) System Leak
• P0457 – EVAP System Leak (Gas Cap Loose)
• P0171 – System Too Lean (Bank 1)
• P0300 – Random Misfire (rare, but possible)
• P1078 – Exhaust Valve Timing Control (G35-specific)

Write down the code(s). This is crucial. It tells you why the light came on.

Example: If you get P0457, the issue is likely your gas cap. Tighten it or replace it. If you get P0171, you might have a vacuum leak or dirty MAF sensor.

Never skip this step. Resetting without reading codes is like taking painkillers without knowing if you have a headache or a broken arm.

Step 6: Address the Root Cause (If Needed)

Now, fix the problem—before resetting the light.

Here’s what to do based on common codes:

• P0457 (Loose Gas Cap): Tighten the cap until it clicks 3–5 times. If it’s cracked or old, replace it.
• P0440 (EVAP Leak): Check the EVAP hoses under the hood. Look for cracks, loose clamps, or disconnected lines. Use a flashlight and follow the hoses from the charcoal canister to the intake manifold.
• P0171 (Lean Mixture): Clean the MAF sensor with MAF cleaner (not brake cleaner!). Check for vacuum leaks—listen for hissing sounds or use carb cleaner (spray near hoses; RPM surge means a leak).
• P1078 (Valve Timing): This is G35-specific. Check oil level and quality. Low or dirty oil can affect timing. Top off or change if needed.

If you’re unsure, consult a repair manual or mechanic. But for simple fixes like a loose cap or dirty sensor, DIY is safe and effective.

Pro Tip: After fixing, drive the car for 10–15 minutes to let the system relearn. The SES might turn off on its own—no reset needed.

Step 7: Clear the Codes and Reset the Service Engine Soon Light

Once you’ve addressed the issue (or if you’re sure it’s a false alarm), it’s time to reset.

On your scanner or app, select “Clear Codes” or “Erase DTCs.” Confirm when prompted.

The device will send a command to your car’s computer to erase all stored codes and turn off the SES light.

Wait 10–15 seconds. The light should go off. If it doesn’t, wait another minute and check again.

For some 2026 models, you may need to:

• Turn the ignition to “ON” (engine off) during reset.
• Press the “Enter” or “OK” button on the scanner.

Success! The SES light is now off. But don’t celebrate yet—do a final check.

Step 8: Verify the Reset and Test Drive

Turn off the ignition, unplug the scanner, and wait 30 seconds.

Start the engine. The SES light should not come back on immediately.

Now, take a short test drive: 10–15 minutes, including city and highway driving. This lets the car’s computer run its self-tests.

After driving, park and check the dashboard. If the light stays off, you’ve successfully reset it.

If the light returns, it means:

• The problem wasn’t fully fixed (e.g., gas cap still loose).
• A new issue emerged (rare).
• The system needs more driving cycles to clear.

Repeat Steps 5–7 if needed.

Pro Tips & Common Mistakes to Avoid

Even simple tasks like how to reset Service Engine Soon light Infiniti G35 in 2026 can go wrong. Here’s how to stay ahead:

• Don’t reset without reading codes – This is the #1 mistake. You could ignore a real problem.
• Use a quality OBD-II scanner – Cheap $10 scanners may fail to read or clear codes properly. Spend $25+ for reliability.
• Check the gas cap first – 30% of SES lights are triggered by a loose or faulty cap. Always start here.
• Drive after resetting – The car needs time to verify the fix. A 10-minute drive is better than just idling.
• Keep a code log – Write down codes and dates. This helps track recurring issues and impresses mechanics.
• Don’t ignore maintenance – The SES light often appears near service intervals. Follow your owner’s manual for oil, air filter, and spark plug changes.
• Beware of aftermarket parts – Cheap sensors or caps can cause false codes. Use OEM or high-quality aftermarket brands.

Warning: If the SES light returns within 1–2 days, don’t reset it again. The issue is persistent. Get it diagnosed professionally.

Real-life example: Sarah, a G35 owner, reset her light twice in a week. The third time, she read the code—P0440. She found a cracked EVAP hose under the intake. A $5 hose saved her a $300 repair.

Another tip: Some 2026 G35 models have a “maintenance reminder” system. The SES light may come on at 7,500 miles even if no fault exists. In this case, resetting is safe—just confirm no other symptoms.

FAQs About How to Reset Service Engine Soon Light Infiniti G35 in 2026

Q: Can I reset the SES light without a scanner?

Technically, yes—but it’s not recommended. Some older cars use the “ignition key dance” (turning the key 3x, etc.), but the 2026 G35’s system is too complex for that. An OBD-II scanner is the safest, most accurate way. Plus, it lets you read codes first.

Q: Will resetting the light affect my car’s performance?

No. Resetting only clears stored codes. It doesn’t change engine tuning or performance. However, if the light was on due to a real issue (e.g., misfire), performance may improve after the fix.

Q: How long does the reset process take?

About 10–15 minutes if you have the right tools. Most time is spent reading codes and verifying the fix. The actual reset takes 20 seconds.

Q: Is it illegal to reset the SES light?

No. It’s your car. You have the right to diagnose and reset. However, if the light returns and you’re due for emissions testing, you may fail. Fix the issue first.

Q: Can a dead battery cause the SES light to come on?

Yes. A weak or dead battery can cause voltage drops, which trigger false codes. If the light came on after a jump-start, wait 2–3 days for the system to stabilize. Then reset.

Q: What if the light comes back after resetting?

Don’t panic. It means the issue wasn’t fully fixed. Read the codes again. If it’s the same code, the problem is recurring. If it’s a new code, a different issue has arisen. Either way, address it before resetting again.

Q: Should I reset the light if my car is under warranty?

Check your warranty terms. Most allow DIY diagnostics. But if you’re unsure, contact your dealer. They may reset it for free. However, resetting yourself won’t void the warranty—just don’t damage anything.

Final Thoughts

The Service Engine Soon light isn’t a death sentence. It’s your car’s way of saying, “Let’s chat.” And with the right approach, how to reset Service Engine Soon light Infiniti G35 in 2026 becomes a simple, empowering skill.

Remember: Read codes first, fix the cause, then reset. This keeps your G35 running smoothly and saves you from costly repairs down the road.

Keep your OBD-II scanner in the glove box. Update your maintenance schedule. And if you ever feel unsure, consult a trusted mechanic—but now, you’ll know exactly what to ask.

You’ve got this. Your 2026 Infiniti G35 isn’t just a car—it’s a partner. Treat it right, and it’ll take care of you for years to come.

So next time that yellow light pops on, don’t stress. Grab your tools, follow these steps, and reset with confidence. Safe driving!

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