Severity: Moderate
Drivable, but it can cause more damage or poor economy. Get it checked within days.
What P0A80 means
One or more blocks in the hybrid battery have dropped out of balance with the rest. The pack needs testing and repair or replacement.
Symptoms
- Reduced fuel economy
- Hybrid system warning
- Engine runs more often
Common causes
Most likely first
- 1Weak cells/modules in the hybrid battery
- 2Clogged battery cooling fan or filter
How we diagnose it
- Read block voltages under load
- Inspect battery cooling
Every vehicle sets codes under its own conditions. We check the factory diagnostic steps and service bulletins for your VIN, so the repair targets the actual cause.