2020 Nissan Maxima Check Engine Light

Certified technicians, only the experts.
Frequently Asked Questions

Frequently Asked Questions

What does it mean when the check engine light comes on in a 2020 Nissan Maxima?

  • The check engine light indicates your vehicle’s onboard diagnostics system has detected a fault — anything from a loose gas cap to an emissions or engine performance issue.
  • At Larry H. Miller Nissan Mesa in Mesa, AZ, our certified technicians perform a complete scan, identify the specific trouble codes, and explain repair options in plain language.
  • We prioritize transparency: you’ll get an itemized estimate showing immediate and long-term savings when genuine OEM parts and proper diagnostics are used.
  • Repairs covered under warranty must be completed at a certified dealership to keep coverage valid — we handle warranty work and documentation for you.
  • To get started, schedule service or check current service specials that can reduce your out-of-pocket costs.

How long does a check engine light service take?

  • Most diagnostics take 30–90 minutes depending on the issue; if parts or deeper diagnostics are required it may take longer.
  • At Larry H. Miller Nissan Mesa we streamline the process with factory-grade tools so you spend less time waiting and more time on the road.
  • Our team communicates ETA and cost options clearly so you understand immediate repairs and preventive steps to lower future expense.
  • We offer service financing so you can get the work done now and pay over time, avoiding prolonged exposure to potential engine damage.
  • Ready to book? Schedule appointment online for quick check-in and priority handling.

How much does a check engine light diagnostic cost for a 2020 Nissan Maxima?

  • Pricing varies by complexity; our diagnostics are competitively priced and often cost less than independent shops while delivering factory-trained expertise.
  • Choosing Larry H. Miller Nissan Mesa delivers immediate savings through accurate diagnosis and long-term savings by preventing misdiagnosis and improper repairs.
  • We provide upfront estimates, and repairs covered under warranty must be done at a certified dealership to preserve coverage and peace of mind.
  • Look for current discounts and coupons on our service specials page before you visit.
  • Use service financing to spread payments and avoid delaying important repairs that protect value and reliability.

What is the most common reason for check engine light on a 2020 Nissan Maxima?

  • Common causes include an oxygen sensor failure, loose fuel cap, misfires, or EVAP system faults; each generates specific diagnostic trouble codes.
  • Left unaddressed, small issues can escalate — for example, a bad oxygen sensor can reduce fuel economy and damage catalytic converters, increasing repair costs.
  • Our certified techs at Larry H. Miller Nissan Mesa quickly interpret codes and recommend OEM repairs that protect long-term performance and resale value.
  • We recommend checking our service specials and using our convenient online scheduler to get priority diagnostic service.

What is the first thing to check when the check engine light comes on?

  • Start with simple checks: ensure the gas cap is tight and look for obvious signs like low oil or coolant levels.
  • If the light persists, bring your 2020 Nissan Maxima to Larry H. Miller Nissan Mesa where we’ll run a full scan and explain findings and repair options.
  • Repairs done with OEM parts and dealership-certified technicians often provide better long-term value and maintain warranty integrity.
  • To avoid delays and get service financing options, schedule service today and review available service specials.

Check Engine Light Flashing

The check engine light flashing in your 2020 Nissan Maxima is an urgent indicator that a misfire or serious engine problem may be occurring. A flashing light often signals that unburned fuel is entering the exhaust system, which can overheat or damage the catalytic converter and rapidly increase repair costs. At Larry H. Miller Nissan Mesa in Mesa, AZ, our factory-trained technicians treat flashing lights as a priority — we inspect ignition components, fuel delivery, and emission controls immediately to protect your engine and minimize downstream expenses. Choosing dealership service means you receive OEM parts, manufacturer-grade diagnostics, and warranty protection where applicable. We explain findings, estimate costs, and outline immediate versus preventative repairs so you can make an informed decision. We also offer service financing, allowing you to address urgent repairs right away without unexpected financial strain. Check for current savings on our service specials, then schedule service online for fast, certified attention — don’t delay when the light is flashing.

2020 Nissan Maxima Check Engine Light Reset

Resetting the check engine light on a 2020 Nissan Maxima is straightforward with the right diagnostic approach, but a simple reset without addressing the root cause can lead to repeat failures and higher long-term costs. At Larry H. Miller Nissan Mesa we perform a full scan to identify stored and pending codes, repair the underlying issue using OEM parts, and then verify the repair by clearing codes and test driving the vehicle. This approach preserves warranty coverage and improves long-term reliability. Our Mesa, AZ service center documents repairs and provides clear reports so you understand what was fixed and why it matters. We emphasize transparency: you receive upfront pricing, a timeline, and guidance on preventive maintenance that reduces future service needs. For convenience, take advantage of our online schedule appointment system and see current discounts on our service specials. When you choose our dealership you get certified technicians, factory tools, and lasting peace of mind.

2020 Nissan Maxima Check Engine Light Codes

Common check engine codes for the 2020 Nissan Maxima include misfire codes (P0300–P0306), oxygen sensor codes (P0130–P0167), and EVAP system faults (P0440–P0455). Each code points to a specific system — for example, persistent misfires can damage the catalytic converter, turning a relatively small ignition repair into an expensive exhaust-system replacement. Likewise, an unresolved oxygen sensor fault reduces fuel economy and increases emissions, costing more over time. At Larry H. Miller Nissan Mesa in Mesa, AZ, our certified technicians decode these fault codes quickly and provide a clear repair plan with cost comparisons showing immediate and long-term savings when OEM parts and dealership expertise are applied. We highlight how early diagnostics prevent larger repairs and often save money versus repeated guesswork. For budget flexibility we offer service financing, and you can check current discounts on our service specials. Protect your 2020 Nissan Maxima — schedule service with our team for reliable diagnostics and lasting repairs.

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