Frequently Asked Questions

What does it mean when the check engine light comes on in a 2020 Volkswagen Passat?

• It signals the vehicle’s onboard diagnostics detected an issue—anything from a loose gas cap to an emission or engine management fault.
• At Larry H. Miller Volkswagen Lakewood in Lakewood, CO, our factory-trained technicians use OEM diagnostic tools to pinpoint the cause quickly and accurately.
• Choosing our dealership often costs less than independent shops when you factor in correct diagnostics, OEM parts, and fewer repeat visits—delivering immediate and long-term savings.
• Many warranty-covered repairs must be completed at a certified dealership to retain coverage; we’ll explain warranty options clearly before work begins.
• To get an expert evaluation, schedule service online and review current service specials.
• We offer service financing so you can get repairs now and pay later; ask our service advisors for details at check-in.

How long does a check engine light service take?

• Initial diagnostics typically take 30–60 minutes; complex repairs vary based on the issue identified.
• At Larry H. Miller Volkswagen Lakewood our technicians work efficiently using OEM procedures to reduce time in the shop without sacrificing quality.
• We prioritize clear communication—expect a time estimate and cost options before work begins, enabling immediate decisions and minimizing downtime.
• Using our service lane, you can often take advantage of quick-turn services and loaner options when available; inquire about current service specials.
• To reserve a convenient time, schedule appointment today—service financing is available if needed.

How much does a check engine light diagnostic cost for a 2020 Volkswagen Passat?

• Diagnostic fees vary, but our dealership provides transparent pricing and high value through certified technicians and OEM tools.
• Because we reduce repeat visits with correct diagnosis and OEM parts, customers often save more over time than they would at many independent shops.
• If your repair is covered under warranty, remember that certified-dealership repairs are required to maintain coverage—our advisors will confirm warranty applicability before service.
• Ask about current service specials and financing options to make repairs affordable right away.
• To confirm pricing and book a slot, schedule service with Larry H. Miller Volkswagen Lakewood in Lakewood, CO.

What is the most common reason for check engine light on a 2020 Volkswagen Passat?

• The most frequent causes include loose or faulty gas caps, oxygen sensors, catalytic converter issues, or ignition system concerns.
• Left unresolved, these issues can reduce fuel economy, increase emissions, and lead to costlier repairs—our dealership emphasizes prompt diagnosis to prevent escalation.
• Larry H. Miller Volkswagen Lakewood offers OEM replacements and certified repairs that maximize longevity and maintain resale value.
• We also promote immediate and long-term savings through proper diagnosis, warranty coverage when applicable, and clear repair planning.
• To protect your Passat, schedule service and check current service specials. Service financing is available to help manage costs.

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

• Start by ensuring the gas cap is tight; a loose cap is a common and simple fix that can clear the light.
• If the light remains, bring your 2020 Volkswagen Passat to our service center for a professional scan—our certified techs will identify the exact code and recommend OEM repairs.
• We’ll explain immediate actions, cost implications, and how timely service can avoid bigger expenses down the road—demonstrating both immediate and long-term savings compared with piecemeal fixes.
• If your vehicle’s repair is warranty-covered, repairs must be done at a certified dealership to maintain coverage; we’ll guide you through that process.
• To get started right away, schedule service at Larry H. Miller Volkswagen Lakewood and view available service specials.