Check Engine Light Flashing

The check engine light flashing on your 2018 Dodge Durango is a warning that the engine is misfiring and may be causing unburned fuel to enter the exhaust. A flashing indicator requires immediate attention because continued driving can damage the catalytic converter and other engine components, increasing repair costs and downtime. At Larry H. Miller Chrysler Dodge Ram FIAT Denver our technicians are trained to prioritize flashing codes, perform a rapid but thorough diagnosis, and recommend the most reliable repair path. We focus on proven OEM parts and clear estimates so you understand immediate needs and long-term benefits—like restored fuel economy, improved emissions performance, and reduced risk of costly downstream damage. If you see a flashing light, do not delay: schedule service online, and ask about current service specials and service financing to get the repair started today.

2018 Dodge Durango Check Engine Light Codes

Technicians in Denver commonly see a handful of diagnostic trouble codes on the 2018 Dodge Durango. Codes like P0420 (catalyst system efficiency below threshold) can lead to costly catalytic converter replacement if ignored—repairs that can range from several hundred to over a thousand dollars if delayed. Misfire codes such as P0300 indicate ignition or fuel delivery problems; left unattended, these can damage pistons and catalytic components and drive repair costs much higher. EVAP codes such as P0455 or P0446 often stem from leaks or failed purge valves and are typically lower-cost fixes when addressed early. A P0171 (system too lean) can signal vacuum leaks or sensor failures that reduce performance and MPG. At Larry H. Miller Chrysler Dodge Ram FIAT Denver we provide precise diagnostics, OEM replacement parts, and a clear cost comparison so you can make an informed choice. Our certified techs reduce repeat visits and help you avoid compounding expenses—check availability and our latest service specials or schedule appointment online.

2018 Dodge Durango Check Engine Light Reset

Resetting the check engine light on a 2018 Dodge Durango may seem simple, but doing so without addressing the underlying cause can mask problems and void warranty conditions. Our dealership recommends a full diagnostic and repair plan rather than a quick reset; we use OEM-calibrated tools to clear codes only after confirming repairs are complete. This approach preserves warranty protection—remember, warranty repairs must be performed at a certified dealership—and ensures long-term reliability. We also emphasize transparency: you’ll receive an itemized estimate, explanation of parts and labor, and guidance on how repairs improve fuel economy and longevity. For convenience, you can schedule service online and explore current service specials. If financing is needed, ask our service advisors about payment plans so you can make the safe, right repair now and pay over time.