Frequently Asked Questions

What does it mean when the check engine light comes on in a 2019 Chevrolet Impala?

• It signals that the vehicle’s computer has detected a fault in emissions, fuel delivery, ignition, or engine sensors. Our technicians at Stevinson Chevrolet will perform a full scan and explain the codes in plain language.
• We often find fixes ranging from simple sensor resets or loose gas caps to more involved repairs. Choosing our dealership often costs less than independent shops when you factor in accurate diagnostics, OEM parts, and long-term savings from doing the repair right the first time.
• Repairs covered under warranty must be performed at a certified dealership to preserve coverage. You can schedule service online and ask about service financing to handle repairs now and pay later.

How long does a check engine light service take?

• Typical diagnostics start with a scan and visual inspection and can take 30–90 minutes. If battery replacement or additional testing is required, we’ll outline the timeline before starting.
• Stevinson Chevrolet prioritizes quick turnaround using advanced testing equipment and OEM parts so you spend less time waiting and more time on the road.
• We recommend checking current service specials for savings and schedule service online to reserve a convenient appointment.

How much does a check engine light diagnostic cost for a 2019 Chevrolet Impala?

• Diagnostic costs vary by issue, but our transparent pricing and clear estimates mean you’ll know the expected repair cost before any work begins.
• Stevinson Chevrolet frequently offers competitive rates and long-term value compared with independent shops—better diagnostics, certified techs, and OEM parts that reduce repeat visits and overall ownership costs.
• Ask about service financing and current service specials, and schedule service to get a prompt inspection.

What is the most common reason for check engine light on a 2019 Chevrolet Impala?

• Common causes include oxygen sensor failure, loose or faulty gas cap, catalytic converter issues, spark plug or ignition coil faults, and vacuum leaks.
• If left unaddressed, these issues can reduce fuel economy, increase emissions, and lead to more costly repairs. Our certified technicians diagnose root causes quickly, saving you money over time.
• Warranty repairs must be completed at a certified dealership; we also offer transparent estimates, OEM parts, and service financing to help with immediate needs.

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

• Start with the basics: check the gas cap for tightness and visible damage. If tightening doesn’t help, bring your 2019 Chevrolet Impala to Stevinson Chevrolet for a full diagnostic scan.
• Our technicians use GM-approved tools to read trouble codes, test battery condition, and inspect sensors to determine if it’s a simple fix or a more involved repair.
• To avoid unnecessary costs and to preserve warranties, schedule an appointment with our certified team and explore current service specials and service financing options.

2019 Chevrolet Impala Check Engine Light Reset

Resetting the check engine light on a 2019 Chevrolet Impala can be simple or complex depending on the underlying trouble code. While consumers sometimes clear a code with a battery disconnect or an OBD-II reader, that only hides the symptom until the fault reoccurs. At Stevinson Chevrolet in Colorado, our technicians run a complete diagnostic to identify the root cause before we reset codes. That means we don’t just turn off a warning — we repair the issue using OEM parts and GM-recommended procedures so the fault doesn’t return and your vehicle maintains its longevity and resale value. We document all work, explain the diagnosis in clear terms, and provide an itemized estimate before any repairs. If the repair is covered under warranty, remember it must be performed at a certified dealership to maintain coverage. We accept service financing to keep repairs affordable and offer periodic service specials. To protect your Impala and drive with confidence, schedule service with our certified technicians today.

2019 Chevrolet Impala Check Engine Light Codes

Common check engine light codes for a 2019 Chevrolet Impala include misfire codes (P0300–P0312), oxygen sensor faults (P0130–P0167), and evaporative system leaks (P0440–P0457). Each code points to different repair paths and associated costs: a loose gas cap or EVAP purge valve may be a low-cost fix, while catalytic converter or ignition coil replacements are more costly if delayed. Ignoring codes accelerates wear, lowers fuel economy (the Impala normally achieves ~22 city / 29 highway MPG), and can cause secondary damage that raises repair costs significantly. Stevinson Chevrolet offers transparent estimates and emphasizes immediate and long-term savings by addressing problems early with OEM parts and certified technicians. Our service department in Colorado provides quick diagnostics and efficient repairs to minimize downtime. For customers looking to save, check our current service specials and schedule service online to get prioritized service with documented results and warranty-protected work.

Check Engine Light Flashing

A flashing check engine light on a 2019 Chevrolet Impala signals an active misfire or a condition that risks immediate damage to the catalytic converter. This is a higher-severity alert that requires prompt attention — avoid extended driving and bring the vehicle to Stevinson Chevrolet in Colorado as soon as possible. Our certified technicians will perform a prioritized inspection, test ignition components, fuel delivery, and emissions systems, and recommend the safest course of action. We offer OEM parts, warranty-backed repairs (performed at certified dealerships), and service financing to help you manage unexpected expenses. Take advantage of our transparent estimates and occasional service specials to reduce out-of-pocket costs. If you see a flashing light, please don’t delay: schedule service online now or contact our service center to speak with a technician and protect your Impala from costly downstream damage.