Frequently Asked Questions

What does it mean when the check engine light comes on in a 2012 Chrysler 300?

• It signals the vehicle’s onboard diagnostics detected an issue — anything from a loose gas cap to a sensor or emission system problem. Our certified technicians at Larry H. Miller Chrysler Dodge Ram FIAT Denver diagnose the cause quickly and accurately.
• Bringing the car to our dealership often costs less than independent shops when you factor in immediate fixes, accurate repairs, and long-term savings from OEM parts and correct repairs the first time.
• Repairs covered under warranty must be performed at a certified dealership to preserve coverage; we’ll verify any applicable warranty and explain options clearly.
• We offer service financing so you can get necessary repairs now and pay later — ask our service advisors for details when you schedule service.

How long does a check engine light service take?

• Most diagnostics take 30–90 minutes depending on code complexity and test procedures. If parts or deeper diagnosis are required, we’ll provide an accurate estimate before work begins.
• Our factory-trained technicians use OEM equipment for faster, more reliable troubleshooting — that saves you time and money over repeat visits.
• We recommend checking current service specials before arrival to maximize savings.
• To speed your visit, you can schedule appointment online and note any recent symptoms.

How much does a check engine light diagnostic cost for a 2012 Chrysler 300?

• Diagnostic fees vary by complexity, but Larry H. Miller Chrysler Dodge Ram FIAT Denver provides transparent pricing and strong value; our diagnostic fees often compare favorably to independent shops once you include warranty protection and OEM parts.
• We focus on immediate and long-term savings: accurate diagnosis prevents unnecessary parts replacement and repeat labor, lowering total ownership cost.
• Ask about our current service specials and service financing to make repairs more affordable today.

What is the most common reason for check engine light on a 2012 Chrysler 300?

• Common causes include a loose or faulty gas cap, oxygen sensor failure, or catalytic converter concerns. For the 2012 Chrysler 300 with its 5.7L V8, sensors and ignition components also merit early inspection.
• Our technicians identify and correct the root cause so you avoid cascading failures that increase repair costs later.
• Warranty-covered repairs should be completed at certified dealerships like ours to protect coverage and ensure OEM parts are used.

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

• Start with simple checks: ensure the gas cap is tight and look for obvious fluid leaks or engine irregularities. If the light remains, bring the vehicle to us for a full scan.
• We recommend you schedule service promptly — early diagnosis saves money and prevents more serious damage.
• We offer service financing, quick turnarounds, and OEM-quality repairs to keep your 2012 Chrysler 300 running reliably in Denver.