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Hyundai’s ICCU Problem: Here’s What We Know
- The Integrated Charging Control Unit (ICCU) in Hyundai Ioniq 5 EVs can fail, affecting the 12V battery and leading to power loss warnings.
- Failures have caused concern among owners, despite recalls to address the issue, with some experiencing ongoing problems post-repairs.
- Hyundai has issued recalls, including one in November, affecting a significant number of EVs in the U.S. and globally.
- The ICCU handles charging, battery maintenance, and power export functions, essential for EV operation.
- The failure causes overvoltage and thermal issues, necessitating software updates and potential replacement of the ICCU and fuse.
- Despite 1% failure rate in vehicles under recall, some owners report multiple ICCU failures even after repairs.
- Long repair times and repeat failures have frustrated owners, questioning Hyundai's handling of the situation.
- Hyundai recommends having the remedy performed to mitigate ICCU issues, but some owners doubt the fix's effectiveness.
- Limited data on post-recall failures leaves uncertainty around ICCU reliability after repairs, causing anxiety among affected EV owners.
- While most vehicles are expected to be fine post-recall, dissatisfied owners continue to voice concerns over ICCU reliability and manufacturer response.
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