What does it mean when the check engine light comes on in a 2019 Ram 2500?

• It indicates the vehicle’s onboard diagnostics detected an issue — anything from a loose gas cap to an emissions or sensor fault.
• Our technicians at Larry H. Miller Dodge RAM FIAT Tucson run a complete scan, explain results, and outline repair options so you understand immediate and long-term savings.
• We often cost less than independent shops while delivering factory-trained techs, OEM parts, and comprehensive warranty protections; warranty repairs must be done at a certified dealership to remain valid.
• We offer service financing so you can get repairs now and pay later; to arrange timing, please schedule service.

How long does a check engine light service take?

• Typical diagnostics take 30–90 minutes; repairs vary by issue. Simple sensor swaps or resets can be same-day, while more complex repairs may require parts ordering.
• At Larry H. Miller Dodge RAM FIAT Tucson we prioritize quick turnaround with express bays and certified technicians to minimize downtime.
• Take advantage of our online service specials and transparent estimates to reduce immediate costs and prevent costly failures later.
• To secure a convenient slot, schedule appointment online.

How much does a check engine light diagnostic cost for a 2019 Ram 2500?

• Diagnostics vary, but our pricing is competitive. We often cost less than independent shops while providing factory tools and certified technicians, yielding better long-term value.
• Choosing dealership service saves you money over time by preventing misdiagnoses and subsequent damage that can lead to larger repairs.
• Remember that repairs covered under warranty must be completed at a certified dealership to keep coverage valid, and we can review warranty status during your visit.
• We also offer service financing so repairs are manageable — schedule service to get a clear estimate and apply available service specials.

What is the most common reason for check engine light on a 2019 Ram 2500?

• Common causes include faulty oxygen sensors, catalytic converter issues, loose gas caps, and failing ignition components. Each can reduce fuel economy and increase repair costs if ignored.
• Our certified techs diagnose accurately using OEM procedures so you avoid repeated visits and costly follow-ups — an immediate saving compared to guesswork repairs.
• We’ll explain the repair timeline, warranty coverage, and long-term benefits of OEM parts versus aftermarket fixes.
• To prioritize vehicle longevity, schedule service and check current service specials.

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

• Start with basics: check the gas cap for tightness. If that doesn’t clear the light, have a professional scan the system to identify codes and prevent further damage.
• Our dealership uses certified diagnostic tools to read and interpret codes correctly, protecting your truck and saving on avoidable repairs down the road.
• We frequently offer quick inspections, express diagnostics, and service financing so you can address issues now without financial stress.
• To get immediate guidance or to book a diagnostic, schedule service online and review available service specials.

Check Engine Light Flashing

A flashing check engine light in a 2019 Ram 2500 signals a serious condition — often a misfire that can overheat the catalytic converter and cause rapid, costly damage. If you see a flashing light, pull over safely and contact Larry H. Miller Dodge RAM FIAT Tucson right away. Our technicians prioritize flashing-light cases and will reserve diagnostic bays to quickly identify whether the issue is ignition, fuel delivery, or a sensor failure. Immediate dealer-level diagnostics reduce the chance of downstream damage and save you money in the long run by preventing catalytic converter failure or engine damage. We use OEM replacement parts, backed by warranties, and our factory-trained techs document repairs clearly so you maintain resale value and warranty coverage. Check current service specials for savings, and schedule service online now to get prompt attention and avoid further risk.

2019 Ram 2500 Check Engine Light Codes

Common codes for the 2019 Ram 2500 include P0420 (catalyst system efficiency), P0300 (random/multiple cylinder misfire), P0171/P0174 (system too lean), and oxygen sensor faults. Left unaddressed, P0420 can lead to a failed catalytic converter — an expensive repair — while P0300 can cause performance loss, lower fuel economy, and potential engine damage. At Larry H. Miller Dodge RAM FIAT Tucson we translate codes into clear repair plans with up-front pricing and a focus on long-term savings. Using OEM parts and certified technicians reduces rework and maximizes reliability. We also walk you through warranty coverage and available service financing so you can get necessary work completed immediately and budget it over time. For transparency and convenience, visit our service specials or schedule appointment online — our Tucson service team will prepare an accurate estimate and prioritize rapid, quality repairs.

2019 Ram 2500 Check Engine Light Reset

Resetting the check engine light on a 2019 Ram 2500 can be done with an OBD-II scanner, but a reset without proper diagnosis only masks issues and risks further damage. At Larry H. Miller Dodge RAM FIAT Tucson we recommend a full diagnostic first; if the repair is complete, we reset the system and verify repair integrity with test drives and re-scans. Choosing dealership service ensures OEM-quality parts and technician training, preserving warranties and vehicle value. We provide detailed repair reports and explain immediate vs. long-term savings from correct repairs. Take advantage of our service financing options if needed, and check current service specials to reduce out-of-pocket costs. When you’re ready, schedule service online and our service advisors will guide you through options and timelines.

Ready to protect your 2019 Ram 2500? Book diagnostics, battery service, or repairs with Larry H. Miller Dodge RAM FIAT Tucson for fast, transparent, and certified service. Schedule service now or call our Tucson service center to speak with a technician.