Frequently Asked Questions

What does it mean when the check engine light comes on in a 2012 Ram 2500?

• It signals a fault detected by the engine control system — anything from a loose gas cap to emissions or charging system issues that can relate to battery or alternator health.
• At Larry H. Miller Chrysler Dodge Ram FIAT Denver, our certified technicians run a full diagnostic and battery/charging test to pinpoint the cause quickly and accurately.
• We often cost less than independent shops while delivering factory-trained service, OEM parts, and transparent estimates that highlight immediate and long-term savings.
• To address the issue promptly, schedule service — service financing is available so you can get repairs now and pay later.

How long does a check engine light service take?

• Most diagnostics take 30–90 minutes depending on code complexity and whether additional battery or charging tests are needed for a 2012 Ram 2500.
• If parts or battery replacement are required, we provide same-day or next-day options and clear timelines so you know when you’ll be back on the road.
• We use OEM parts and factory diagnostic procedures to protect vehicle longevity and warranty coverage; warranty repairs must be performed at a certified dealership.
• Save with our current offers — view our service specials and schedule appointment today.

How much does a check engine light diagnostic cost for a 2012 Ram 2500?

• Diagnostic prices vary; our dealership provides competitive, transparent pricing and often costs less than independent shops while offering higher-value service from factory-trained technicians.
• The initial scan and battery/charging inspection are priced to deliver immediate value and to help avoid costly downstream repairs by catching problems early.
• We emphasize long-term savings through correct repairs, OEM parts, and warranty protections; repairs covered under warranty must be handled at a certified dealership.
• Ask about service financing and check current service specials when you schedule service.

What is the most common reason for check engine light on a 2012 Ram 2500?

• Common triggers include faulty oxygen sensors, EVAP system leaks (sometimes a loose gas cap), ignition or fuel system faults, and charging system or battery issues that affect engine management.
• For owners in Denver, Larry H. Miller Chrysler Dodge Ram FIAT Denver provides fast diagnostics and targeted repairs to prevent escalation — protecting tow ratings and towing-related electrics on heavy-duty trucks like the 2012 Ram 2500.
• We show cost comparisons, recommend OEM replacements when needed, and explain warranty benefits to maximize vehicle uptime and resale value.
• To get an accurate diagnosis, schedule appointment and review our service specials.

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

• Start with a visual check: gas cap tightness and obvious battery connections or corrosion — these are quick wins and often resolve emissions or charging codes.
• Next, bring your vehicle to our certified technicians for a full OBD-II scan and battery/alternator test to identify code specifics for the 2012 Ram 2500.
• We provide a clear estimate, outline immediate and long-term savings, and can perform warranty-covered repairs when applicable — warranty work must be done at a certified dealership.
• Use service financing if you need repairs now and payment flexibility; click to schedule service and check our service specials.