2018 Dodge Charger Check Engine Light

Certified technicians, only the experts.
Frequently Asked Questions

Battery Services & Replacements — 2018 Dodge Charger

At Larry H. Miller Chrysler Jeep Dodge Ram Boise, we provide fast, reliable battery testing and replacement for your 2018 Dodge Charger. Our factory-trained technicians use OEM-quality batteries and diagnostic tools to ensure dependable starts and long-term performance. Enjoy comfortable waiting areas, transparent pricing, and service financing options so you can get the work done now and pay later.

For quick service or to discuss battery options, schedule service today. Check current savings and offers on our service specials page before you visit.

Frequently Asked Questions

What does it mean when the check engine light comes on in a 2018 Dodge Charger?

  • It signals the vehicle’s onboard diagnostics detected an issue—anything from a loose gas cap to an emissions or ignition problem. Our certified technicians at Larry H. Miller Chrysler Jeep Dodge Ram Boise diagnose the root cause quickly to avoid further damage.
  • We often find simple, low-cost fixes or identify issues early to prevent costly repairs. Choosing the dealership can save you money immediately and over time thanks to OEM parts, accurate diagnostics, and service financing.
  • If repairs are covered under warranty, they must be completed at a certified dealership to preserve coverage. To get started, schedule service and view current service specials.

How long does a check engine light service take?

  • Most diagnostics are completed within an hour; complex repairs take longer depending on parts and labor. Our team prioritizes quick turnaround while maintaining OEM-quality repairs.
  • We provide clear estimates and explain immediate and long-term savings from addressing issues early. Our service advisors can arrange loaner options or comfortable waiting areas while you wait.
  • To minimize downtime, schedule appointment online and check for available service specials.

How much does a check engine light diagnostic cost for a 2018 Dodge Charger?

  • Diagnostic pricing varies by issue, but our dealership often costs less than independent shops while delivering higher-level service from factory-trained technicians. We combine accurate diagnostics with OEM parts to reduce repeat visits and long-term expense.
  • We emphasize value: accurate diagnostics avoid unnecessary part replacements and protect resale value. Service financing is available so you can address problems now and pay over time.
  • For the best experience and transparent pricing, schedule service and review current service specials.

What is the most common reason for check engine light on a 2018 Dodge Charger?

  • Common causes include a loose or faulty gas cap, oxygen sensor failure, catalytic converter issues, or ignition/misfire problems. Early diagnosis by our trained technicians limits damage and expense.
  • We use OEM diagnostic tools to provide accurate codes and a clear repair plan. Choosing the dealership often results in immediate savings through correct repairs and long-term savings by preventing cascading failures.
  • Remember: warranty-covered repairs must be done at a certified dealership. Schedule service to protect your vehicle and benefits.

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

  • Check for an obviously loose gas cap first—it's a common, quick fix. If the light remains, a professional diagnostic is the next step.
  • Bring your 2018 Dodge Charger to Larry H. Miller Chrysler Jeep Dodge Ram Boise for precise diagnostics, OEM parts, and certified technicians—this approach saves money over time and preserves warranty coverage.
  • To get started fast, schedule service and explore current service specials. Service financing is available for eligible repairs.

Check Engine Light Flashing

A flashing check engine light on your 2018 Dodge Charger signals an active misfire or condition that can damage the catalytic converter if driven. This is one of the few situations where immediate attention is critical; continued driving risks far more expensive repairs. At Larry H. Miller Chrysler Jeep Dodge Ram Boise in Boise, ID, our technicians prioritize flashing-light diagnostics and provide a same-day assessment when possible. We inspect ignition components, fuel delivery, emissions controls, and engine sensors using OEM-grade tools to determine the exact fault. Our transparent estimates outline immediate repair costs, expected long-term savings from preventing further damage, and warranty coverage where applicable. We also offer service financing so you can address urgent repairs right away and spread payments over time. Take advantage of our current service specials for savings on parts and labor. Don't delay—schedule service now or contact our service team for guidance.

2018 Dodge Charger Check Engine Light Codes

Common diagnostic trouble codes for the 2018 Dodge Charger often include P0420 (catalyst system efficiency), P0300 (random/multiple cylinder misfire), P0171/P0174 (fuel trim lean), and various oxygen sensor or EVAP system codes. Each code has different cost implications if left unresolved: untreated misfires can ruin catalytic converters (thousands in parts and labor), fuel trim issues reduce fuel economy and accelerate wear, and EVAP leaks can lead to failed emissions tests and fines in some areas. At Larry H. Miller Chrysler Jeep Dodge Ram Boise, we use OEM diagnostic procedures to pinpoint the cause, avoiding unnecessary parts replacement and reducing total repair cost. Our service advisors communicate clear repair timelines and explain how prompt, certified repairs deliver immediate savings (by fixing the root cause) and long-term savings (by avoiding secondary damage). Schedule an inspection through our online form and check available service specials to maximize value while preserving your Charger’s longevity.

2018 Dodge Charger Check Engine Light Reset

Resetting the check engine light on a 2018 Dodge Charger is straightforward, but it should only be done after the underlying issue is resolved. A simple reset without repair can mask ongoing problems and void warranty protection for related failures. At our Boise dealership, we perform a full diagnostic and repair before clearing codes, ensuring repairs are complete and documented. We use OEM parts, factory procedures, and certified technicians to maintain vehicle integrity and warranty coverage. Clearing codes at the dealership also gives you a documented service history that helps with resale and trade-in value. We prioritize transparent pricing and often deliver more cost-effective outcomes than independent shops thanks to precise diagnostics that prevent repeat work. Take advantage of our service financing and current service specials, then schedule service to restore your Charger and drive with confidence.

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