Engine Light & Battery Service — 2020 Ram 1500

At Larry H. Miller Chrysler Dodge Ram FIAT Denver in Denver, CO, our factory-trained technicians diagnose and repair check engine light issues and battery problems on the 2020 Ram 1500 with speed and transparency. We use OEM parts, offer factory-backed warranties, and provide service financing so you can get repairs now and pay later. Find current offers on our service specials or schedule service online.

What does it mean when the check engine light comes on in a 2020 Ram 1500?

• Common triggers: emissions faults, oxygen sensor failure, loose gas cap, ignition or fuel system issues.
• Our technicians at Larry H. Miller Chrysler Dodge Ram FIAT Denver run OEM diagnostics to pinpoint causes and recommend cost-effective repairs.
• Choosing the dealership often costs less than independent shops long term because we avoid repeat repairs, use OEM parts, and maintain warranty coverage for covered items.
• Repairs covered by warranty must be completed at a certified dealership to preserve coverage.
• To get evaluated quickly, schedule service or check our service specials for savings.

How long does a check engine light service take?

• Typical diagnostic scan and initial inspection: 30–60 minutes, depending on symptoms.
• Repairs vary: simple fixes (gas cap, sensor) often same-day; complex repairs may require parts and a short follow-up.
• We prioritize quick turnaround with clear estimates and real-time updates, minimizing downtime for your 2020 Ram 1500.
• Use our online scheduler to schedule appointment and select loaner or shuttle options when available.

How much does a check engine light diagnostic cost for a 2020 Ram 1500?

• Diagnostics are competitively priced and often lower than independent shops when factoring certified technicians and OEM tests.
• Exact price depends on tests required; our technicians provide a clear estimate before work begins to show immediate and long-term savings.
• Ask about our service specials and available service financing to get repairs now and pay later.

What is the most common reason for check engine light on a 2020 Ram 1500?

• Most frequent: faulty oxygen sensors, loose or damaged fuel cap, or inefficient catalytic function causing emissions codes.
• Left unattended, these can reduce fuel economy, accelerate wear, and increase repair costs—our certified techs prevent costly follow-up repairs.
• We inspect, diagnose, and use OEM parts to restore performance and fuel economy.

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

• Check for an obvious loose gas cap and tighten it, then drive briefly to see if the light clears.
• If it persists or flashes, stop driving and contact us—flashing often indicates a severe misfire that can damage the catalytic converter.
• For expert help, schedule service at Larry H. Miller Chrysler Dodge Ram FIAT Denver and ask about our current service specials.

Check Engine Light Flashing

A flashing check engine light on a 2020 Ram 1500 signals an active misfire or severe engine condition that can rapidly harm the catalytic converter and other components. When you see a flashing light, reduce speed, avoid heavy acceleration, and contact Larry H. Miller Chrysler Dodge Ram FIAT Denver immediately. Our certified technicians will perform a priority diagnostic using OEM-grade scanners to isolate misfires, fuel delivery faults, or ignition system failures. We explain findings clearly, provide a written estimate, and outline options that balance immediate repair needs and long-term value. Repairs done at our dealership preserve warranty eligibility and often prevent repeat visits common after incomplete fixes elsewhere. Ask about service financing to address urgent repairs now and spread the cost, and check our service specials for additional savings. To protect your truck and avoid costly downstream damage, schedule service online or call our service department at the dealership for expedited care.

2020 Ram 1500 Check Engine Light Reset

Resetting the check engine light on a 2020 Ram 1500 is sometimes possible after resolving the underlying fault, but a simple reset without repair can mask recurring problems and risk greater damage. At Larry H. Miller Chrysler Dodge Ram FIAT Denver, we recommend a full diagnostic so resets are meaningful and permanent. Our technicians perform OEM-level scans to clear trouble codes only after confirming repairs and verifying system readiness. Using dealership service means you get transparent pricing, genuine OEM parts, and factory-trained techs who document repairs and help maintain resale value. Warranties and service plans require certified-dealership repairs for coverage—another reason to choose us. We also provide service financing and regular maintenance reminders to protect your investment. Before considering a DIY reset, let us diagnose and advise; you can schedule appointment online and review current service specials to save on necessary repairs.

2020 Ram 1500 Check Engine Light Codes

Common check engine codes on a 2020 Ram 1500 include P0420 (catalyst efficiency), P013x series (oxygen sensors), P030x (cylinder misfire), and P0455 (evaporative emission leak). In Denver, drivers bring their 2020 Ram 1500 to Larry H. Miller Chrysler Dodge Ram FIAT Denver for quick, accurate code resolution. Left unchecked, a P0420 can lead to failed emissions tests and costly catalytic converter replacement; P030x misfires can cause poor fuel economy, rough running, and damage to engine internals; P0455 evaporative leaks often reduce fuel efficiency and increase evaporative emissions. Our service team explains the cost implications of delaying repairs—short-term savings can become long-term expenses—and offers OEM parts and warranties that reduce lifetime maintenance costs. We provide clear estimates, fast turnaround, and loaner/shuttle options to keep you moving. To protect your truck’s performance and resale value, schedule service and review available service specials today.