Frequently Asked Questions

What does it mean when the check engine light comes on in a 2012 Ram 3500?

• It signals the vehicle’s onboard diagnostics have detected an emissions, fuel, ignition, or sensor issue. Our certified technicians at Larry H. Miller Chrysler Dodge Jeep Ram 104th in Denver, CO, use OEM-grade tools to read and interpret codes accurately.
• Addressing codes early preserves fuel economy and avoids costly failure — our service often costs less than independent shops while delivering factory-trained expertise and genuine parts.
• Repairs covered under warranty must be completed at a certified dealership; we honor warranty requirements and document repairs thoroughly for long-term value.
• Ready to act? schedule service or check our service specials to save on common diagnostic work.

How long does a check engine light service take?

• Most diagnostics and a basic inspection take about 60–90 minutes; complex repairs (sensors, turbo or injector work) can require additional time for parts and testing.
• At Larry H. Miller Chrysler Dodge Jeep Ram 104th we prioritize quick turnaround using streamlined workflows and factory tools, helping you get back on the road faster.
• We offer service financing so you can get necessary work now and pay over time, delivering immediate safety and long-term savings by preventing bigger failures.
• To secure an appointment that fits your schedule, schedule appointment online and explore current service specials.

How much does a check engine light diagnostic cost for a 2012 Ram 3500?

• Diagnostic fees vary by issue, but our dealership provides transparent pricing and will review recommended repairs and estimated costs before any work begins.
• We often deliver better overall value than independent shops because our diagnostics, OEM parts, and certified technicians reduce repeat visits and long-term expense.
• Ask about our current service specials and financing options to lower upfront costs and maximize savings over the vehicle’s life.
• To get a fast, accurate estimate, please schedule service with our service team at Larry H. Miller Chrysler Dodge Jeep Ram 104th in Denver, CO.

What is the most common reason for check engine light on a 2012 Ram 3500?

• Common causes include exhaust gas recirculation (EGR) issues, turbo boost faults, fuel injector or sensor malfunctions, and emissions control concerns. Our technicians pinpoint root causes rather than guessing.
• Early diagnosis at our dealership protects towing capacity and engine longevity for diesel markets — delaying repairs can mean higher repair and replacement costs.
• Repairs performed with OEM parts and documented service history preserve resale value and help maintain any applicable warranties.
• Book a fast diagnostic: schedule service and view available discounts on our service specials.

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

• Start with a professional diagnostic scan to read trouble codes; this quickly narrows the issue so you avoid unnecessary repairs.
• Our certified technicians at Larry H. Miller Chrysler Dodge Jeep Ram 104th will explain the findings, estimate repair time and costs, and discuss warranty coverage before any work begins.
• We recommend avoiding resets without repair — clearing a light without fixing the cause can hide damage and increase long-term expense; our team ensures transparency and durable fixes.
• To protect your 2012 Ram 3500 and take advantage of financing or specials, schedule service today.