2018 Ram 3500 Lone Star — Battery & Engine Light Service in Denver

At Larry H. Miller Chrysler Dodge Ram FIAT Denver, our factory-trained technicians provide precise battery testing, battery replacement, and engine light diagnostics for the 2018 Ram 3500. We combine OEM parts, fast turnaround, and transparent pricing so your truck stays dependable on Colorado roads.

What does it mean when the check engine light comes on in a 2018 Ram 3500?

• It can indicate anything from a minor sensor fault to emissions or fuel system issues — our certified technicians diagnose codes quickly with OEM-grade scanners.
• Addressing the issue at Larry H. Miller Chrysler Dodge Ram FIAT Denver typically costs less than many independent shops while delivering long-term savings through correct repairs and warranty-backed parts.
• Repairs covered under warranty must be completed at a certified dealership to preserve protections; we’ll confirm coverage and next steps before any work begins.
• We offer service financing to help you get the work done now and pay over time.
• To get started, schedule service or check our current service specials.

How long does a check engine light service take?

• Basic diagnostics often take under an hour; more involved repairs vary by diagnosis and parts availability.
• Battery tests and replacements are usually completed the same day — many customers leave with a fully tested battery the same visit.
• We maintain parts inventory for Ram trucks to speed repairs and reduce downtime for your 2018 Ram 3500.
• Use our easy online tool to schedule appointment and we’ll prepare for your arrival.
• Ask about our service specials and available service financing to lower upfront cost and maximize long-term value.

How much does a check engine light diagnostic cost for a 2018 Ram 3500?

• Our dealership provides competitive diagnostics pricing and transparent estimates before work begins.
• Because we use OEM tools and trained Ram technicians, you often save money over repeated independent-shop attempts — fewer follow-ups and correct fixes reduce lifetime cost.
• Repairs under warranty must be performed at a certified dealership to preserve coverage; we’ll confirm any warranty savings during inspection.
• Service financing is available so you can address issues today and pay over time.
• To confirm pricing and availability, schedule service or view our current service specials.

What is the most common reason for check engine light on a 2018 Ram 3500?

• Common causes include oxygen sensor faults, loose gas caps, catalytic converter issues, and battery/charging problems — our diagnostics pinpoint the exact code.
• Ignoring these codes can lead to reduced fuel economy, increased emissions, or more costly repairs down the road; we emphasize immediate and long-term savings by fixing issues correctly once.
• We use OEM replacement parts and certified technicians to ensure reliability and maintain resale value for your 2018 Ram 3500.
• Repairs covered by warranty must be done at a certified dealership to keep protections intact.
• Book a convenient time to visit using our schedule service page and explore service specials before you arrive.

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

• Start with a battery and charging system test — a weak battery can trigger multiple codes and odd electrical behavior on a 2018 Ram 3500.
• Next, we scan for codes with dealership-grade tools to identify the exact subsystem causing the alert.
• Our certified technicians explain options, costs, and warranty ramifications so you choose the right repair for long-term value.
• We offer service financing so necessary repairs don’t wait; schedule now to avoid compounding problems.
• To begin, schedule service or view current service specials online.

Check Engine Light Flashing

The sight of a flashing check engine light in a 2018 Ram 3500 can mean a critical misfire or serious engine problem that could damage the catalytic converter if you continue driving. At Larry H. Miller Chrysler Dodge Ram FIAT Denver in Denver, CO, we treat flashing lights as urgent: our certified Ram technicians prioritize diagnosis, isolating misfires, fuel delivery faults, and ignition or sensor failures. We pair immediate diagnostics with battery and charging system checks because weak batteries or poor connections can create intermittent faults that escalate into flashing engine alerts. Choosing our dealership gives you OEM parts, factory tooling, and warranty protections — and repairs performed here preserve any applicable warranty coverage. We offer transparent estimates, same-day battery replacement when needed, and service financing to get you back on the road without delay. Check our service specials for current offers, then schedule service online or call to arrange expedited care to protect your 2018 Ram 3500.

2018 Ram 3500 Check Engine Light Codes

Common diagnostic codes for the 2018 Ram 3500 include oxygen sensor faults (P0130–P0167 range), misfire codes (P0300–P0312), and fuel system or emissions codes that, if ignored, can increase fuel consumption, reduce towing capability, and lead to catalytic converter failure — repairs that can run from a modest sensor replacement to thousands if left unattended. At Larry H. Miller Chrysler Dodge Ram FIAT Denver, we emphasize accurate code interpretation and corrective work so you avoid unnecessary parts replacement and repeated trips. Our Denver service center uses OEM parts and Ram-specific tooling to keep repairs precise, extending engine life and preserving resale value. We also perform battery testing and replacements as part of comprehensive diagnostics to rule out electrical causes. Customers benefit from fast service, transparent quotes, and service financing to handle unexpected repairs. For the best value, check our service specials and schedule appointment online — we’ll prepare for your 2018 Ram 3500 before you arrive.

2018 Ram 3500 Check Engine Light Reset

Resetting the check engine light on a 2018 Ram 3500 can be simple if the underlying issue is corrected, but clearing codes without repair can mask recurring problems and lead to more costly damage. At Larry H. Miller Chrysler Dodge Ram FIAT Denver, we recommend a proper diagnostic and repair before any reset to ensure long-term reliability. Our technicians perform a full scan, confirm root causes, replace or repair with OEM parts, and then clear codes—documenting work so warranty coverage remains intact. Choosing dealership service ensures transparency, accurate repairs, and genuine parts; repairs covered under warranty must be completed at a certified dealership to keep protections valid. We offer service financing and often save customers money long-term by getting the fix right the first time. Take advantage of our service specials and schedule service to keep your 2018 Ram 3500 running at peak performance.