2016 Hyundai Accent Check Engine Light Codes

At Arapahoe Hyundai in Colorado we see a handful of recurring codes on the 2016 Hyundai Accent: P0420 (catalytic converter efficiency), P0300 (random/multiple cylinder misfire), P0135/P0141 (oxygen sensor heater circuit), and P0171/P0174 (lean fuel trim). Ignoring these can cause escalating costs: a bad O2 sensor left unattended wastes fuel and can damage the catalytic converter; misfires can harm pistons and the catalytic system; running too lean can overheat components and result in costly repairs. Our factory-trained technicians diagnose codes with OEM-grade scanners to pinpoint the true root cause and prevent unnecessary parts replacement. That accuracy not only reduces immediate repair bills but protects long-term vehicle value and reliability. We combine transparent estimates, genuine Hyundai parts, and fast turnaround so Accent owners receive trustworthy service—often at a lower total cost than independent shops when you factor in accuracy, warranty protection, and fewer repeat visits. Learn about current service specials or schedule service to get a prompt diagnostic.

2016 Hyundai Accent Check Engine Light Reset

Resetting a check engine light on a 2016 Hyundai Accent is a short step after proper diagnosis, but a reset without repair only hides the symptom. Our technicians at Arapahoe Hyundai perform a full code read, verify repairs with live data, and then clear codes as appropriate so you leave with a safe, reliable vehicle. Choosing dealership service ensures OEM replacement parts, factory repair procedures, and sustained warranty coverage—repairs covered under warranty must be performed at a certified dealership to remain valid. We also provide written estimates and explain why a reset is or isn’t the right next step, which prevents recurring failures and helps you avoid long-term expense. For customers concerned about cost, we offer service financing so repairs can start immediately with manageable payments. Check our service specials for discounts, then schedule appointment online for a convenient visit.

Check Engine Light Flashing

A flashing check engine light on a 2016 Hyundai Accent is a critical signal—usually indicating an active misfire that can send unburned fuel into the exhaust and damage the catalytic converter. If you see a flashing light, stop driving if safe and bring the car to Arapahoe Hyundai immediately. Our service team levels priority for flashing-light diagnostics to limit damage and reduce repair bills. We inspect ignition, fuel delivery, and sensor data quickly and recommend the minimal, correct repair path using Hyundai OEM parts backed by warranty. We often have service promotions and loyalty offers that lower your out-of-pocket expense—see current service specials. For urgent care, please schedule service online now or contact our service desk so we can arrange fast assessment and repair to protect your vehicle and provide peace of mind.