Hyundai Ioniq (Hybrid/PHEV)
The Ioniq is a highly rated hybrid that rivals the Prius. While generally very reliable, it has specific issues with 12V battery drain and the Dual-Clutch Transmission (DCT) which requires careful monitoring.
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Common Faults & Reliability
These are the most common documented problems for the Hyundai Ioniq (Hybrid/PHEV), sorted by their typical impact and frequency.
12V Battery Drain & Deep Sleep Bugs
medium severityThe auxiliary 12V battery can drain if the car is left for several days. On earlier models, this was often due to the car failing to enter a "deep sleep" mode, sometimes exacerbated by frequent Bluelink app pings or third-party tracking apps.
Clutch Actuator Fluid Leak
high severityAn internal leak in the hydraulic clutch actuator can lead to an electrical short and is a known fire risk. Most affected cars were recalled.
DCT Hesitation & Shudder
medium severityThe 6-speed DCT can feel hesitant or "shudder" when pulling away, particularly in cold weather or stop-start traffic.
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