Check Engine Light Flashing

A flashing check engine light on a 2024 Hyundai Sonata signals an active misfire or condition that could cause catalytic converter damage. This is more urgent than a steady light because misfires can quickly overheat exhaust components and lead to costly repairs. At Stevinson Hyundai in CO, our process begins with a careful, OEM-compliant scan to capture live data, misfire counts, and fuel trim readings so we diagnose the root cause rather than guessing. Our factory-trained technicians are experienced with the 2.5L inline‑4 NAG engine in the 2024 Hyundai Sonata and will explain whether the issue is ignition, fuel, or emissions-related and recommend repairs using genuine Hyundai parts.

Ignoring a flashing light risks immediate engine damage and higher long-term bills. Stevinson Hyundai reduces that risk with quick turnaround, transparent estimates, and the right parts for durability. We routinely pair diagnostic work with our current service specials to provide value; ask us about loyalty offers and how timely repairs preserve warranty coverage. If your check engine light is flashing, don’t delay — schedule service online now or contact our service team via the main site to arrange expedited diagnostics and safe repairs.

2024 Hyundai Sonata Check Engine Light Reset

Resetting the check engine light on a 2024 Hyundai Sonata is technically simple, but professional service ensures the underlying fault is resolved rather than temporarily silenced. At Stevinson Hyundai we retrieve stored and pending codes, clear them, then perform a verification drive and live-data review so the light won’t reappear due to an unresolved issue. Dealers provide transparency with documented scans, genuine Hyundai parts, and factory calibration when sensors or modules are replaced. That means long-term peace of mind and protection of your vehicle’s warranty — note that warranty repairs must be handled at a certified dealership to remain valid.

2024 Hyundai Sonata Check Engine Light Codes

Typical codes for a 2024 Hyundai Sonata include P0420 (catalyst efficiency), P0171/P0174 (fuel trim/fuel system lean), P0300–P0304 (misfires), and P0130–P0167 (oxygen and sensor circuits). Each code carries cost implications: ignoring P0420 can lead to expensive catalytic converter replacement; untreated P0171/P0174 can reduce fuel economy and damage sensors; ongoing misfires escalate into engine and exhaust harm. Stevinson Hyundai in CO focuses on efficient, accurate diagnostics to prevent these costly outcomes. Our factory-trained technicians explain repair options, timelines, and cost-saving choices — from targeted sensor replacement to covered warranty work. To preserve your 2024 Hyundai Sonata’s performance and value, schedule service with our certified team and ask about available service financing and current service specials.