Check Engine Light Flashing

A flashing check engine light in your 2015 Hyundai Sonata indicates a severe condition such as an active misfire that can damage the catalytic converter or cause unsafe driving. Immediate attention at Stevinson Hyundai in Colorado is crucial. Our certified technicians prioritize safety and use Hyundai-specific diagnostic tools to read transient and stored codes, identify misfires, fuel or ignition faults, and inspect downstream components. Choosing our dealership means you receive OEM parts, transparent estimates, and warranty-backed repairs performed by Hyundai-trained staff. We often deliver lower total cost of ownership than independent shops because correct diagnosis at the outset prevents cascading failures and expensive future repairs. Take advantage of current service specials and flexible service financing to address urgent needs without delay. If your check engine light is flashing, don’t wait: schedule service now to protect performance and avoid further damage.

2015 Hyundai Sonata Check Engine Light Reset

Resetting a check engine light on a 2015 Hyundai Sonata is a simple step but not a substitute for proper diagnosis. Our technicians can clear codes after repairs and verify that underlying faults are resolved, ensuring the light does not return. Relying on generic code-clearing tools can mask recurring problems; Stevinson Hyundai provides calibrated diagnostics, OEM replacement parts, and documented repairs that preserve warranty and resale value. We emphasize transparency—explaining codes, possible fixes, and immediate and long-term savings from correct repairs. Warranty-covered work must be performed at a certified dealership to remain valid, and we make financing available so maintenance won’t wait. Check current service specials and schedule service to get a full inspection and professional reset.

2015 Hyundai Sonata Check Engine Light Codes

Common codes for the 2015 Hyundai Sonata include P0420 (catalytic efficiency), P0135 (oxygen sensor heater), P0300 (random/multiple misfire), and P0171/P0174 (fuel trim lean). Left unchecked, these issues reduce MPG, increase emissions, and can lead to costly component failures such as a failed catalytic converter or engine damage. Stevinson Hyundai in Colorado offers precise code interpretation and prioritized repair plans so you get the right fix quickly. Our certified technicians use OEM parts, provide clear cost estimates, and often cost less overall than independent shops by preventing cascading failures. We back repairs with warranty coverage and convenient options like service financing. For dependable diagnostics and to take advantage of our customer-focused experience, schedule service and review our service specials today.