Hyundai Azera persistent check engine and transmission light issues with multiple misfires and repeated need for repairs on Hyundai Azera

Some Hyundai Azera owners report experiencing persistent check engine and transmission light issues, which may stem from various problems such as emission system failures, ignition system malfunctions, and engine timing issues. These problems can trigger the check engine light due to irregular engine running, often related to ignition cylinder or exhaust gas oxygen sensor issues. A flashing check engine light may indicate a catalyst-damaging misfire, necessitating immediate servicing to avoid damage to the catalytic converter and O2 sensors. Additionally, some owners report transmission problems that lead to stalling, shaking while driving, and delayed acceleration, requiring thorough diagnostics to uncover the underlying causes. Multiple misfires, particularly those associated with a p0300 code, are also a common concern, with some 2016 Hyundai Azera owners facing frequent repairs and dealership visits. While these issues may not always result in major breakdowns, they can be frustrating and warrant prompt attention to prevent further complications. Seeking assistance from a certified mechanic or Hyundai dealership is recommended to effectively diagnose and resolve these persistent problems.