Frequently Asked Questions

What does it mean when the check engine light comes on in a 2015 Chevrolet Impala Limited?

• It signals that the vehicle’s onboard diagnostics detected an issue—anything from a loose gas cap to an emissions, sensor, ignition, or charging problem.
• At Stevinson Chevrolet we run a full scan and explain findings in plain language, often resolving issues the same day and helping you save compared with independent shops while delivering factory-level diagnostics.
• Repairs covered under warranty must be performed at a certified dealership to remain valid; our team will confirm coverage and next steps.
• We offer service financing so you can get service now and pay later, and you can always schedule appointment online.

How long does a check engine light service take?

• Typical diagnostic scans and initial inspections take 30–90 minutes depending on the issue and whether parts are needed.
• Many battery and sensor repairs are completed same day thanks to our parts inventory and streamlined processes—saving you time and long-term expense.
• We’ll give a clear timeframe and cost estimate before work begins and highlight applicable service specials.

How much does a check engine light diagnostic cost for a 2015 Chevrolet Impala Limited?

• Costs vary by region and scope, but Stevinson Chevrolet often costs less than independent shops while providing certified technicians and OEM parts, delivering immediate and long-term savings.
• We provide transparent estimates and explain potential future savings by addressing issues early to avoid cascading repairs.
• Ask about financing to spread payments and browse our service specials before you schedule service.

What is the most common reason for check engine light on a 2015 Chevrolet Impala Limited?

• Common causes include oxygen sensor faults, catalytic converter issues, ignition misfires, or a failing battery/charging system—each has different cost implications if left unresolved.
• Addressing issues early at Stevinson Chevrolet minimizes repair complexity and cost while preserving vehicle longevity.
• We use OEM parts and provide warranty-backed repairs; coverage work must be completed at a certified dealership.

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

• Start with a visual check: secure gas cap, battery terminals, and fluid levels—then bring the vehicle in for a proper scan.
• Our service team will perform a diagnostic and outline options, including battery replacement or sensor repair, and show how acting now saves money later.
• To get priority service, schedule appointment online and see current service specials prior to arrival.

Check Engine Light Flashing

A flashing check engine light on your 2015 Chevrolet Impala Limited indicates a potentially serious condition—often an active misfire that can damage the catalytic converter if driven. At Stevinson Chevrolet in CO we prioritize flashing-light cases and recommend you stop driving when safe and bring the vehicle in immediately. Our technicians perform a thorough inspection of ignition components, fuel delivery, and emissions systems using OEM-level diagnostics to identify root causes precisely. We explain repair options, warranty coverage, and how addressing the issue promptly protects the engine and reduces long-term costs. We run full battery and charging system tests as part of the diagnosis when electrical faults are suspected. Take advantage of our transparent pricing, available service specials, and financing options to get back on the road with confidence—schedule service now or contact our service team for immediate guidance.

2015 Chevrolet Impala Limited Check Engine Light Codes

Common diagnostic codes for the 2015 Chevrolet Impala Limited include P0300 (random/multiple misfires), P0420 (catalyst system efficiency), P0171/P0174 (fuel trim lean conditions), and P0130–P0167 (oxygen sensor and heater circuit faults). Ignoring these codes can lead to decreased fuel economy, failed emissions inspections, catalytic converter damage, and more costly repairs later. For example, unresolved misfires can destroy a catalytic converter—an expensive replacement—while an oxygen sensor left unfixed will reduce mpg and accelerate downstream failures. At Stevinson Chevrolet we combine quick, clear diagnostics with factory parts and certified technicians to restore performance and protect resale value. Our service advisors outline immediate fixes and long-term maintenance plans and emphasize that dealership repairs often cost less than independent shops when factoring in longevity, OEM warranties, and proven diagnostics. To ensure timely care, schedule service or review service specials before you arrive.

2015 Chevrolet Impala Limited Check Engine Light Reset

Resetting the check engine light on a 2015 Chevrolet Impala Limited may clear the lamp temporarily, but a reset alone does not resolve underlying faults. At Stevinson Chevrolet our approach is to diagnose the cause using OEM-level scanners, address the root issue—such as a failing sensor, ignition component, or battery—and then perform a proper reset so the system can monitor vehicle health accurately. We stress transparency: you’ll receive a detailed estimate, an explanation of recommended repairs, and guidance on any warranty coverage. Repairs performed under warranty must be completed at a certified dealership to maintain coverage. Using OEM parts and certified technicians preserves vehicle integrity and delivers long-term savings compared with short-term fixes. If you want a reliable resolution and peace of mind, schedule appointment or check our service specials first.