2012 Prius "Check Hybrid System" – Battery Diagnosis & Fix
This 2012 Toyota Prius showed the “Check Hybrid System” warning and had reduced MPG and weak acceleration. We diagnosed the hybrid battery and performed a targeted module repair to restore performance — no full battery replacement needed.
Before & After Photos
Symptoms:
- “Check Hybrid System” message on screen
- Loss of power and acceleration
- Battery icon draining rapidly
Diagnosis:
Techstream diagnostics revealed multiple weak modules in the hybrid battery pack. Voltage imbalance was outside the safe range, triggering the system fault.
Work Performed:
- Removed and opened hybrid battery pack
- Replaced 3 weak modules with matched units
- Balanced voltages and cleaned bus bars
- Cleared codes and verified system performance
Results:
- Warning message cleared
- Restored MPG to 48+ average
- Hybrid system working properly again
🔧 Performed by Falcon Prius Specialist – Newark, NJ
We offer honest Prius battery diagnostics and affordable repairs. If it can be saved, we’ll save it.
We offer honest Prius battery diagnostics and affordable repairs. If it can be saved, we’ll save it.
Hybrid system issues? Let us take a look.
Check Our Hybrid Battery Services📞 Call or Text: (973) 221-8915
