Hyundai Tucson 48V Mild Hybrid Battery Fault
Hyundai
Tucson
2020
1.6 T-GDI 48V
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
✅ Safe to Drive
Safety Impact
No direct safety impact reported by owners
Urgency Level
🟡 Monitor Closely
The 48V mild hybrid battery in newer Tucson develops cell imbalance faults, triggering a hybrid system warning and reduced fuel economy. The 48V LiIon battery is a separate unit from the main 12V system. Replacement costs £800-1,800.
Onarım / Çözüm
No confirmed fixes yet. Share yours below.
⚠️ Yanlış Teşhis mi?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Hyundai Tucson 2020 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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