2020 Dodge Durango 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 Durango?

  • It indicates the vehicle’s onboard diagnostics detected an issue — anything from an emissions sensor fault to an engine performance problem.
  • At Larry H. Miller Chrysler Dodge Ram FIAT Denver we diagnose with OEM-grade scanners and factory procedures to pinpoint the cause quickly.
  • Our certified technicians explain immediate steps, repair options, warranty coverage, and long-term savings from fixing issues early.
  • Ask about our service specials and available service financing to get repairs now and pay later.

How long does a check engine light service take?

  • Most diagnostics are completed within 30–60 minutes; repairs vary by the issue.
  • Our factory-trained techs at Larry H. Miller Chrysler Dodge Ram FIAT Denver prioritize speed without cutting corners, often finishing same-day for common fixes.
  • We provide transparent estimates up front and highlight immediate and long-term savings from timely repairs.
  • To confirm availability, schedule service online or call our service team.

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

  • Diagnostic pricing can vary, but our dealership often costs less than independent shops while delivering higher-value service from certified technicians.
  • We emphasize the immediate savings of accurate diagnostics (avoid unnecessary parts) and long-term savings from repairs done right the first time.
  • Repairs covered under warranty must be completed at a certified dealership to maintain coverage and protect your investment.
  • Check current offers under service specials and consider service financing when booking.

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

  • Common causes include a loose or faulty gas cap, oxygen sensor issues, or catalytic converter and ignition/misfire concerns.
  • Our diagnostics isolate the code and recommend OEM parts when replacements are needed to ensure longevity and proper emissions compliance.
  • Choosing Larry H. Miller Chrysler Dodge Ram FIAT Denver means transparent pricing, certified repairs, and documented service history that protects resale value.
  • Book with confidence and explore available incentives via our service specials.

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

  • Safely check the gas cap for tightness — a loose cap is a frequent, simple cause.
  • If the light persists or flashes, do not drive aggressively; contact our service team for a prompt assessment.
  • We offer fast diagnostics, and you can schedule appointment online to minimize downtime.
  • Remember: warranty-covered repairs must be performed at a certified dealership to maintain protection and maximize long-term savings.

Check Engine Light Flashing

The check engine light flashing in a 2020 Dodge Durango is an urgent signal that the engine may be misfiring or that a condition could damage the catalytic converter. If you see a flashing light, stop driving as soon as it's safe and contact Larry H. Miller Chrysler Dodge Ram FIAT Denver in Denver, CO. Our factory-trained technicians prioritize vehicles with flashing codes, using OEM diagnostic tools to identify ignition coil, spark plug, fuel injector, or other failures that can quickly escalate into costly repairs. Addressing a flashing light immediately often prevents catalytic converter damage — a repair that can cost significantly more than the original fix. We combine transparent estimates, genuine Mopar parts, and proven procedures to deliver both immediate relief and long-term reliability. Ask our service advisors about current service specials and service financing options so you can get work started today. To protect your vehicle and wallet, schedule service online or call our Denver service team for expedited appointment options.

2020 Dodge Durango Check Engine Light Reset

Resetting the check engine light on a 2020 Dodge Durango without fixing the underlying fault can lead to repeated warnings and hidden damage. At Larry H. Miller Chrysler Dodge Ram FIAT Denver we explain why a reset is only part of the service: proper diagnostics, repair with genuine OEM parts, and verification testing are essential. Our certified technicians use factory-level tools to read and clear codes only after defects are corrected and confirm readiness with drive-cycle checks. Choosing dealer service assures warranty integrity, clear service records, and optimized performance and efficiency for your Durango’s 6.4L V8. We also highlight cost-saving advantages — accurate diagnostics avoid wasted parts and reduce repeat visits, creating immediate and long-term savings versus guesswork. For convenience we offer same-day bays when available, transparent estimates, and easy online booking; schedule appointment today or review current savings via our service specials. Our team can also discuss service financing so needed repairs won’t wait.

2020 Dodge Durango Check Engine Light Codes

Common check engine light codes for a 2020 Dodge Durango in Denver include P0300 (random/multiple misfires), P0420 (catalyst system efficiency low), P0171/P0174 (fuel trim lean), and P0420-related catalytic issues. Each code points to problems that grow costlier if ignored: unresolved misfires can ruin catalytic converters and lead to expensive replacements; fuel trim or sensor faults reduce fuel economy and accelerate wear; emissions issues can fail state inspections. At Larry H. Miller Chrysler Dodge Ram FIAT Denver our technicians diagnose root causes quickly, explain repair options and estimated costs, and use OEM parts to restore performance. We emphasize the immediate savings of timely service and the long-term value of maintaining factory warranties and a documented service history. Visit our service center page to schedule service or browse current incentives on our service specials. Our Denver facility offers comfortable waiting areas, loaner options when available, and friendly staff committed to getting you back on the road reliably.

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