Code result
P0AC0
Hybrid Battery Cooling System Performance
High severity
What it means
The BMS detects insufficient cooling performance for the HV battery, where pack temperature rise during operation exceeds expected value despite active cooling.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Coolant pump failed
highOne of the most commonly reported causes for this code — check this first.
Battery radiator clogged
mediumA plausible cause — test and verify before replacing parts.
Related help
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