Code result
P0C30
Hybrid/EV Battery Pack State of Charge High
Moderate severity
What it means
The BMS detects that the HV battery pack state of charge exceeds the safe upper limit. Regenerative braking may be limited to prevent overcharge.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
SoC estimation drifted high
highOne of the most commonly reported causes for this code — check this first.
Regen braking strategy off-target
mediumA plausible cause — test and verify before replacing parts.
Pack cell imbalance approaching service threshold
lowLess common, but worth ruling out after the more likely causes.
Related help
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