Code result
P2BA3
Starter/Generator Mechanical Performance
High severity
What it means
The hybrid control module detects that the integrated starter/generator does not deliver the expected mechanical torque or speed for the commanded operation. Belt slippage, bearing wear, or coupling fault.
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
Drive belt slipping or worn
highOne of the most commonly reported causes for this code — check this first.
Starter/generator bearing worn
mediumA plausible cause — test and verify before replacing parts.
Related help
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