Frequently Asked Questions

What does it mean when the check engine light comes on in a 2018 Ram 2500?

• It signals your truck’s onboard diagnostics detected an issue — anything from a loose gas cap to an emission or engine component fault.
• At Larry H. Miller Chrysler Dodge Ram FIAT Denver in Denver, CO, our certified technicians use OEM-grade scanners and factory procedures to pinpoint the cause quickly.
• Getting the issue diagnosed at our dealership often costs less than independent shops because we combine accurate diagnostics, genuine parts, and long-term savings through proper repairs and fewer repeat visits.
• We honor warranties: any repair covered under warranty must be performed at a certified dealership to keep coverage valid.
• We offer service financing so you can get needed repairs now and pay later; to book, please schedule service.

How long does a check engine light service take?

• Typical diagnostics take 30–90 minutes depending on symptoms and road-testing needs.
• If repairs are required, our team at Larry H. Miller Chrysler Dodge Ram FIAT Denver provides a clear estimate and estimated repair time before work begins.
• Choosing dealership service means factory-trained techs, OEM parts, and faster, more reliable repairs — delivering immediate and long-term savings through fewer comebacks.
• To set an appointment, you can schedule appointment online and review current service specials.

How much does a check engine light diagnostic cost for a 2018 Ram 2500?

• Diagnostic pricing varies by issue, but our transparent estimates are provided before any work begins and often deliver better value than independent shops because of accuracy and use of OEM parts.
• We emphasize immediate and long-term savings: correct diagnosis prevents unnecessary parts replacement and recurring faults.
• Ask about our service financing options to spread payments and take care of problems now without delay.

What is the most common reason for check engine light on a 2018 Ram 2500?

• Common causes include a loose or damaged gas cap, faulty oxygen sensor, catalytic converter issues, or ignition/coils/spark plug faults.
• Our technicians at Larry H. Miller Chrysler Dodge Ram FIAT Denver diagnose the root cause quickly to avoid escalating repair costs and protect vehicle longevity.
• Warranty-covered diagnostics and repairs must be completed at certified dealerships to preserve coverage.

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

• First, secure the vehicle and check for obvious issues like a loose gas cap or unusual noises; then have our certified team run a proper scan.
• Scheduling a professional scan at our dealership ensures accurate codes, OEM-level testing, and recommended repairs that reduce long-term costs.
• To act now, schedule service or review current service specials.