P0A80
Hybrid/EV Battery Pack Deterioration
Battery · Powertrain
high
What does this code mean?
The BMS has detected that the high-voltage battery pack capacity has degraded beyond an expected threshold.
This is a generic OBD-II / UDS code — the meaning is standardized across manufacturers.
Possible symptoms
Reduced range
Battery drains quickly
Sudden SOC drop
Possible causes
- 1.Battery aging / normal capacity fade
- 2.Weak or imbalanced cells
- 3.BMS calibration issue
These are possible causes — a professional inspection is required to confirm.
Diagnostic procedure & recommended checks
- Check battery SOH
- Check cell voltage delta
- Run a capacity test
Recommended actions
- Professional battery health inspection
- Compare SOH with expected values for the vehicle age
Can I drive?
Yes, with reduced range
When to contact a professional
If range loss is sudden or accompanied by warnings, or before any battery repair.
Related Fix & Solve guides
Diagnostic information is provided for informational purposes and does not replace professional inspection. High-voltage systems must only be serviced by qualified personnel.