Code result
P2E70
Hybrid/EV Battery Pack B Cell Thickness
High severity
What it means
The BMS detects abnormal cell thickness in HV battery pack B. Cell swelling indicates aging, thermal stress, or imminent failure.
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
Cells aged - swelling
highOne of the most commonly reported causes for this code — check this first.
Thermal stress damaged cells
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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