OBD-II code · Powertrain (generic)
P0A7E Hybrid Battery Pack Overtemperature
BMS detects HV pack temperature above the safe operating limit, triggering thermal protection mode and limiting charge/discharge.
Is it safe to drive with P0A7E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCooling fan or pump failure
- PossibleExtreme ambient temperature
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Repair at a glance
- Difficulty
- Shop_only
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Battery, Battery Cooling Fan, Bms
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.