2010 Hyundai Sonata Battery & Engine Light Service — Stevinson Hyundai

At Stevinson Hyundai in Colorado, our factory-trained technicians diagnose and service the 2010 Hyundai Sonata quickly and accurately. Whether your battery needs replacement or the check engine light has turned on, we use OEM parts, manufacturer-grade tools, and transparent pricing so you know exactly what you’re getting. Take advantage of our service financing and current service specials to get the work done now and pay later.

Check Engine Light Flashing

A flashing check engine light on your 2010 Hyundai Sonata is a sign of a severe misfire or conditions that could damage the catalytic converter. If you notice a flashing light, stop driving when safe and contact Stevinson Hyundai in Colorado right away. Our service drive is set up to triage urgent concerns; we prioritize safety and will inspect ignition coils, spark plugs, fuel injectors, and sensors to identify what’s causing the misfire. Addressing a flashing light promptly prevents expensive downstream damage to the exhaust and emissions systems—saving you money and keeping your Sonata reliable. We use OEM parts and manufacturer-recommended procedures so any warranty remains intact; please note warranty repairs must be completed at a certified dealership. Check our current service specials and consider our service financing options to handle urgent repairs without delay. For immediate attention, schedule service online or call us for same-day options.

2010 Hyundai Sonata Check Engine Light Reset

Resetting the check engine light on a 2010 Hyundai Sonata without addressing the underlying fault can mask problems and lead to more costly repairs. At Stevinson Hyundai, we explain why a reset may be temporary and advise the correct fix instead. Our certified technicians use OEM-grade diagnostic tools to read and clear codes only after repairs are completed—ensuring the issue does not return. Choosing the dealership for service provides transparency: detailed estimates, documented repairs, OEM parts, and warranty protection. We often cost less than independent shops when you factor in accurate diagnostics, fewer comebacks, and long-term reliability. If financing is needed, our service financing programs make repairs manageable. For savings, see our service specials, then schedule appointment to get a trusted diagnosis and lasting repair.

2010 Hyundai Sonata Check Engine Light Codes

The most common check engine codes for a 2010 Hyundai Sonata include P0420 (catalyst efficiency), P0300 (random/multiple cylinder misfire), P0171 (system too lean), and P0135 (oxygen sensor heater). Ignoring these can lead to poor fuel economy, failed emissions tests, reduced performance, and high repair bills—for example, an ignored misfire can ruin a catalytic converter, a costly replacement. At Stevinson Hyundai in Colorado, we prioritize accurate code diagnosis and explain repair costs and timelines before work begins, helping you weigh immediate and long-term savings. Our service team uses OEM parts, keeps thorough records to protect any warranty, and offers service financing so you can address issues promptly. Experience efficient service lanes, comfortable waiting areas, and certified techs who know the Sonata platform inside-out. For a reliable diagnosis and clear options, view our service specials and schedule service online today.