Code result
P0A0F
Hybrid Engine Failed to Start
High severity
What it means
The hybrid control system commanded an internal combustion engine start that did not complete within the expected time. Causes range from low 12V supply to fuel, ignition or starter issues.
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
Weak 12V auxiliary battery
highOne of the most commonly reported causes for this code — check this first.
Starter or ignition system fault
mediumA plausible cause — test and verify before replacing parts.
HV battery state of charge insufficient
lowLess common, but worth ruling out after the more likely causes.
Related help
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