2020 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 2020 Dodge Charger?

  • It signals that the vehicle's onboard diagnostics detected an issue — anything from a loose gas cap to a sensor or emission control fault.
  • At Larry H. Miller Chrysler Dodge Ram FIAT Denver in Denver, CO, our certified technicians use OEM-level scanners to identify the exact fault code and explain repair options clearly.
  • Choosing our dealership often costs less than independent shops when you factor in accurate diagnostics, genuine parts, and long-term savings from correct repairs and preserved resale value.
  • Warranty-covered repairs must be performed at a certified dealership to remain valid; we honor manufacturer warranties and offer transparent estimates.
  • We offer service financing so you can get the repair now and pay later; to act quickly, schedule service online.

How long does a check engine light service take?

  • Most diagnostics for a 2020 Dodge Charger take 30–60 minutes to read codes and run basic tests; follow-up repairs vary by diagnosis.
  • Minor fixes like tightening a gas cap or replacing a sensor can often be completed the same day; more involved repairs are scheduled with clear timelines.
  • Our service advisors at Larry H. Miller Chrysler Dodge Ram FIAT Denver prioritize quick turnaround and keep you informed throughout the process.
  • We recommend reviewing current offers before arrival — see our service specials — and you can schedule appointment online for faster check-in.

How much does a check engine light diagnostic cost for a 2020 Dodge Charger?

  • Diagnostic pricing can vary, but our dealership provides competitive, upfront diagnostic fees and often costs less than independent shops once you include accurate troubleshooting and genuine parts.
  • We emphasize immediate and long-term savings: correct diagnostics prevent repeat visits and protect engine and emissions components from escalating damage.
  • If your repair is covered under warranty, work must be done at a certified dealership to maintain coverage; we’ll confirm warranty applicability during inspection.
  • We also offer service financing so you can address problems right away and pay over time; to book, please schedule service.

What is the most common reason for check engine light on a 2020 Dodge Charger?

  • The most frequent causes include faulty oxygen sensors, loose or damaged gas caps, and ignition coil or spark plug issues — all of which our certified techs quickly identify with OEM-grade tools.
  • Addressing these early at Larry H. Miller Chrysler Dodge Ram FIAT Denver prevents reduced fuel economy, emission failures, and costly downstream repairs.
  • We provide clear estimates and explain the cost-benefit of repairs; using OEM parts and factory procedures helps preserve performance and warranty coverage.

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

  • Start with the simple checks: ensure the gas cap is tightened and look for obvious issues like low fluids or unusual noises.
  • If the light persists, bring your 2020 Dodge Charger to our dealership for a professional diagnostic — our scanners read manufacturer-specific codes for precise guidance.
  • We’ll present repair options, explain immediate vs. recommended maintenance, and highlight savings from fixing issues promptly. To expedite service, schedule service now and review current service specials.

Check Engine Light Flashing

A flashing check engine light on a 2020 Dodge Charger typically indicates a severe misfire or condition that could damage the catalytic converter if driven. In Denver, CO, at Larry H. Miller Chrysler Dodge Ram FIAT Denver we recommend stopping driving as soon as it is safe and contacting our service department. A flashing condition requires immediate attention: our technicians will perform a prioritized diagnostic to isolate misfires, ignition faults, or fuel delivery problems. Quick intervention saves you money over time by preventing costly converter replacement and additional engine wear. We make emergency diagnostics efficient with priority lanes for urgent concerns, and we clearly explain repair scopes and timelines. Look for available service specials and financing options to help manage unexpected repairs. To protect your Charger’s performance and value, schedule service online or call our service team—prompt action preserves reliability and prevents larger bills down the road.

2020 Dodge Charger Check Engine Light Reset

Resetting the check engine light on a 2020 Dodge Charger may seem straightforward, but clearing codes without diagnosing the root cause risks recurring faults and hidden damage. At Larry H. Miller Chrysler Dodge Ram FIAT Denver, our process includes reading and documenting every stored code, performing targeted tests, and then clearing codes only after confirming repairs. We use OEM procedures and parts to ensure issues are corrected correctly and covered under warranty when applicable. Our technicians are factory-trained, which speeds diagnosis and reduces repeat visits — immediate savings — while correct repairs increase longevity and resale value — long-term savings. We also offer service financing for larger repairs and routinely post transparent pricing and promotions in service specials. For a reliable, warranty-protecting reset and service, schedule appointment and let our team perform a full inspection and repair plan.

2020 Dodge Charger Check Engine Light Codes

Understanding common check engine light codes for the 2020 Dodge Charger helps you prioritize repairs and plan costs. Frequently observed codes include oxygen sensor (O2) faults, catalytic converter efficiency (P0420), misfire codes (P0300–P0306), and EVAP system codes often caused by a loose or defective gas cap. Ignoring these can reduce fuel economy, cause failed emissions inspections, and lead to expensive downstream damage like catalytic converter replacement. At Larry H. Miller Chrysler Dodge Ram FIAT Denver in Denver, CO, our certified technicians decode these codes with manufacturer-grade tools and explain cost-effective repair strategies. We emphasize dealership advantages: factory-trained staff, OEM parts, warranty protection for covered repairs, and a transparent estimate process that often results in lower overall cost than paying for repeated independent fixes. Check our current service specials and take advantage of service financing to address issues promptly. To preserve performance, emissions compliance, and long-term value, schedule service with our team.

Shop by Vehicle

Quick Links

Service by Make

Used Vehicles