2018 Dodge Charger 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 2018 Dodge Charger?

  • It signals your vehicle’s onboard diagnostics detected an issue — anything from a loose gas cap to an emissions or ignition problem.
  • At Larry H. Miller Chrysler Dodge Ram FIAT Denver our certified technicians use factory-grade scanners to identify trouble codes quickly and accurately.
  • Repairing issues promptly can protect fuel economy and prevent more expensive damage; our dealership often costs less than independent shops while delivering OEM parts and warranty-backed work.
  • We offer service financing so you can get service now and pay later, and any warranty repairs must be completed at a certified dealership to remain covered.
  • To get an accurate diagnosis, schedule service online or check current savings on our service specials.

How long does a check engine light service take?

  • Most diagnostics are completed within an hour; follow-up repairs depend on the fault and parts availability.
  • At our Denver service center we prioritize quick turnarounds — many customers are back on the road the same day thanks to OEM parts inventory and certified technicians.
  • Choosing Larry H. Miller Chrysler Dodge Ram FIAT Denver delivers immediate and long-term savings through precise diagnostics, correct repairs, and warranty protection.
  • We provide clear estimates before work begins and offer service financing so you can address issues immediately without delay.
  • Ready to proceed? Schedule appointment or view current service specials.

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

  • Diagnostic fees vary; our transparent pricing often undercuts independent shops when long-term value and warranty coverage are considered.
  • Fee includes electronic code retrieval and an initial inspection; any recommended repairs come with a written estimate and OEM parts options.
  • We emphasize immediate and long-term savings by fixing root causes, protecting fuel economy, and avoiding repeat visits.
  • Ask about service financing to spread the cost and check our listed service specials for additional savings.
  • To get a precise quote, schedule service online or call our Denver service team.

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

  • Common causes include oxygen sensor failure, catalytic converter issues, loose or faulty gas caps, and ignition/misfire events.
  • Each issue carries different costs if left unaddressed — for example, a bad oxygen sensor can reduce fuel efficiency; catalytic problems can lead to costly repairs.
  • Larry H. Miller Chrysler Dodge Ram FIAT Denver uses certified diagnostics to prioritize fixes that deliver the best immediate and long-term value.
  • Warranty-covered repairs should be performed here to maintain coverage; we also offer service financing for eligible repairs.
  • Find out what’s causing your light by scheduling a visit: schedule appointment or review our service specials.

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

  • Simple checks include confirming the gas cap is tightened — a loose cap is a frequent trigger and easy to resolve.
  • If the light persists, bring your 2018 Dodge Charger to our Denver service center for a professional scan and inspection.
  • Our factory-trained technicians provide transparent diagnostics, recommend OEM repairs, and explain immediate versus preventive services to save you money over time.
  • Remember, warranty-covered work must be done at a certified dealership to remain valid; we also offer service financing to help manage cost.
  • To avoid escalation, schedule service right away and check current service specials before you visit.

Check Engine Light Flashing

A flashing check engine light on a 2018 Dodge Charger usually indicates a severe misfire or condition that could damage the catalytic converter if ignored. Because a flashing signal often means an ongoing ignition or fuel-delivery issue, immediate attention is recommended to prevent escalation. At Larry H. Miller Chrysler Dodge Ram FIAT Denver in Denver, our technicians perform priority diagnostics to identify misfires, fuel trim faults, or sensor failures that trigger a flashing light. We explain findings in plain language, provide written estimates, and outline repair options using OEM parts to ensure long-term reliability. Acting quickly reduces the risk of downstream damage and higher repair costs — delivering both immediate savings and preserving vehicle value. We also offer service financing so you can get necessary repairs now and pay over time, plus frequent service specials to lower out-of-pocket expense. If your check engine light is flashing, do not drive long distances — contact us and schedule service for a prompt appointment and expert care.

2018 Dodge Charger Check Engine Light Reset

Resetting the check engine light on a 2018 Dodge Charger is straightforward but should follow a proper diagnosis. Clearing codes without addressing the root cause can mask recurring problems and void warranty coverage; that’s why our Denver team emphasizes diagnosis-first service. Our factory-trained technicians use OEM-level tools to read and interpret stored and pending codes, then recommend repairs that restore long-term performance. Choosing Larry H. Miller Chrysler Dodge Ram FIAT Denver means you get transparent pricing, genuine Mopar parts when required, and repairs documented to protect warranties. We’ll reset the light after confirming repairs and road-testing the vehicle so you leave with confidence that the issue is resolved. For convenience, we offer service financing and frequent service specials, and our service advisors will review maintenance steps to prevent repeat faults. Ready for a certified solution? Schedule appointment with our Denver service center today.

2018 Dodge Charger Check Engine Light Codes

Common check engine light codes for a 2018 Dodge Charger include P0300 (random/multiple misfires), P0420 (catalyst system efficiency), P0440 (evaporative emission control system), and P0171/P0174 (fuel trim lean conditions). Each code points to different risks and cost implications if left unaddressed: misfires can damage the catalytic converter and increase fuel consumption; a failing catalytic system may require component replacement; EVAP leaks can cause failed emissions tests and ongoing drivability issues. At Larry H. Miller Chrysler Dodge Ram FIAT Denver, our Denver-based service center offers rapid, accurate code interpretation and clear cost estimates that frequently deliver better value than independent shops because we focus on correct, lasting repairs backed by OEM parts and warranty protection. We prioritize convenience with easy online booking, service financing options, and rotating service specials. Protect performance and avoid costly follow-up fixes — schedule service with our certified team to diagnose codes and get your Charger back to peak condition.