Code result
P2D4B
Hybrid/EV Battery Pack G Over Temperature
High severity
What it means
The BMS detects that battery pack subsection G is operating above the safe temperature threshold. Cell-level cooling or pack thermal management is compromised on this section.
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 flow to this section reduced
highOne of the most commonly reported causes for this code — check this first.
Cell imbalance causes local heating
mediumA plausible cause — test and verify before replacing parts.
Ground point with elevated resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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