Frequently Asked Questions

What does it mean when the check engine light comes on in a 2020 Chevrolet Malibu?

• It signals that the vehicle’s onboard diagnostics detected a fault — anything from a loose gas cap to an emissions or engine performance issue.
• Common causes include oxygen sensor or catalytic efficiency faults, EVAP leaks, ignition misfires, or sensor communication errors.
• At Larry H. Miller Casa Chevrolet in Albuquerque, NM, we diagnose the root cause quickly, explain repair options, and highlight immediate and long-term savings from factory-trained service and OEM parts.
• We offer service financing so you can get repairs now and pay later; any warranty-covered repairs must be performed at a certified dealership to keep your coverage intact.

How long does a check engine light service take?

• Simple diagnostics often take 30–60 minutes; more complex issues can require 1–3 hours depending on the cause and parts availability.
• Our certified technicians at Larry H. Miller Casa Chevrolet work efficiently to minimize downtime while ensuring thorough testing and repairs.
• We prioritize transparency — you’ll get a clear estimate, options for OEM repairs, and information about long-term savings and warranties.
• To minimize disruption, you can schedule service online and review current service specials before you arrive.

How much does a check engine light diagnostic cost for a 2020 Chevrolet Malibu?

• Diagnostics at our dealership start around $68.25 for a standard engine light scan — a competitive price that often costs less than independent shops when you factor in accurate OEM diagnosis and included customer support.
• Choosing Larry H. Miller Casa Chevrolet delivers immediate value through fast, accurate diagnosis and long-term savings by avoiding misdiagnosis, repeated visits, and premature component failure.
• Ask about financing to spread the cost of necessary repairs; warranty-covered work must be completed at a certified dealership to remain valid.

What is the most common reason for check engine light on a 2020 Chevrolet Malibu?

• Common triggers include oxygen sensor/catalyst efficiency codes (reducing fuel economy and risking catalytic damage), EVAP system leaks, and ignition misfires.
• Ignoring these can worsen fuel economy, increase emissions, and lead to costly repairs — for example, a failed catalytic converter can be hundreds to thousands of dollars to replace.
• Our technicians identify the correct fix quickly and help you choose cost-effective OEM solutions with warranty protection.

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

• Quick checks: ensure the gas cap is tight, verify oil level, and note any drivability symptoms (loss of power, rough idle, or stalling).
• If the light remains on or flashes, avoid extended driving and schedule service with Larry H. Miller Casa Chevrolet to prevent further damage.
• We also recommend checking our service specials for savings on diagnostics and necessary repairs.

2020 Chevrolet Malibu Check Engine Light Reset

The check engine light reset for a 2020 Chevrolet Malibu may seem simple, but a reset without proper diagnosis can mask underlying issues that degrade performance and fuel economy over time. At Larry H. Miller Casa Chevrolet in Albuquerque, NM, our factory-trained technicians perform a complete scan to identify stored codes, explain the root cause, and recommend the correct repair. We use OEM parts and manufacturer procedures so resets are permanent when the underlying issue is resolved. Resetting a code prematurely can lead to repeat faults, failed emissions tests, or warranty complications. When you bring your 2020 Chevrolet Malibu to our service center, we provide transparent estimates, outline immediate versus long-term savings, and ensure any warranty-covered repairs are properly documented and performed at a certified facility. You can schedule service online, and check current service specials to maximize value. Our technicians also explain preventive steps to help extend engine life, from routine maintenance to timely replacements of sensors or ignition components—protecting reliability and resale value.

2020 Chevrolet Malibu Check Engine Light Codes

Common check engine light codes for the 2020 Chevrolet Malibu include P0300 (random/multiple cylinder misfire), P0420 (catalyst system efficiency below threshold), P0171/P0174 (system too lean), and P0455 (EVAP large leak). Left unaddressed, these issues can escalate: misfires cause rough running and potential engine damage; a bad catalytic converter or unresolved P0420 can result in costly replacements; lean conditions reduce fuel economy and stress engine components; EVAP leaks increase emissions and potentially cause failed inspections. At Larry H. Miller Casa Chevrolet in Albuquerque, our diagnostics pinpoint the exact cause so you avoid unnecessary repairs. We emphasize OEM quality, offer service financing, and apply industry-best practices to keep repair costs transparent. Choosing dealership service often reduces lifetime expense by preventing cascading failures. Visit our service center or schedule service and review service specials to save on diagnostics and repairs while benefiting from certified technicians and genuine parts.

Check Engine Light Flashing

A flashing check engine light in your 2020 Chevrolet Malibu is a critical warning that indicates active misfires or conditions that could damage the catalytic converter and the engine if driven further. When the light flashes, reduce speed, avoid heavy loads, and bring the vehicle to Larry H. Miller Casa Chevrolet in Albuquerque immediately. Our team will perform a priority diagnostic to identify misfires, ignition faults, or severe sensor failures and recommend immediate actions to prevent further damage. We often provide same-day options, OEM parts, and clear estimates showing immediate and long-term savings of prompt repair. Check our service specials for current offers, and use our schedule service tool to book a priority appointment. Don’t wait—addressing a flashing check engine light quickly protects engine health, limits repair costs, and preserves vehicle reliability. Contact Larry H. Miller Casa Chevrolet or visit our service lane for fast, certified support.