Check Engine Light Flashing

The check engine light flashing on a 2020 Chevrolet Spark is a serious alert that typically indicates an active misfire that can damage the catalytic converter if you continue driving. A flashing light usually means unburned fuel is entering the exhaust system, which raises emissions and risks costly downstream repairs. At Herb Chambers Chevrolet in MA, our technicians prioritize flashing codes and perform a focused diagnostic to determine whether the issue is ignition, fuel delivery, or sensor-related. We test ignition coils, spark plugs, fuel injectors, and battery health — a failing battery can cause intermittent electrical faults — and present clear repair options with OEM parts and warranty coverage. We also outline immediate and long-term savings: addressing a flashing light quickly prevents expensive catalytic converter replacements and restores fuel economy. Take advantage of our transparent pricing, available service financing, and timely appointments; to protect your vehicle, schedule service online or view current service specials before you arrive.

2020 Chevrolet Spark Check Engine Light Codes

Common diagnostic trouble codes on a 2020 Chevrolet Spark include P0420 (catalyst system efficiency), P0130–P0167 series (oxygen sensors), and misfire codes such as P0300–P0304. Ignoring these codes leads to worse performance, increased emissions, and often higher repair costs when secondary components fail. For example, a P0420 left unrepaired can require catalytic converter replacement that costs many times more than the original sensor repair. Herb Chambers Chevrolet in MA provides code reading, component testing, and full repair estimates so you know exact costs and savings. Our certified technicians use OEM parts to restore manufacturer standards and back work with dealership warranties; remember warranty repairs must be completed at a certified dealership. We also offer battery services and replacements tailored to the Spark’s electrical system, ensuring reliable starts and stable onboard diagnostics. For transparency and value, check our service specials and schedule appointment online for fast, professional service.

2020 Chevrolet Spark Check Engine Light Reset

Resetting the check engine light on a 2020 Chevrolet Spark is simple technically, but it’s vital to address the root cause before clearing codes. A reset without repair can mask recurring issues and void warranty coverage. At Herb Chambers Chevrolet in MA we recommend a diagnostic-first approach: we read codes with OEM-grade scanners, repair using genuine parts where needed, and then clear the light to confirm the fault does not return. Choosing the dealership ensures documented repairs, factory-trained technicians, and warranty protection — any covered repairs must be done at a certified dealership to remain valid. Our service advisors explain repair benefits, expected lifespan improvements, and how timely action saves money over time. We also test and, if required, replace batteries with warranty-backed units to eliminate electrical triggers. To book a transparent, reliable service visit with financing options, schedule service or browse current service specials.