Maintain Hybrid Car Battery & System Health

Cost Savings

Checklist Tasks

• Inspect hybrid battery cooling fan for dust buildup and clean as needed.
• Check inverter coolant level; refill with approved fluid if low.
• Test 12V auxiliary battery with a load tester to verify charge and health.
• Check for hybrid warning lights to identify early system or battery faults.
• Rotate tires following hybrid-specific wear patterns for even tread life.
• Clean brake calipers and lubricate guide pins to prevent corrosion.
• Monitor hybrid transmission fluid for debris or discoloration.
• Ensure vehicle software is updated to support battery and charging management.
• Inspect underbody panels for looseness to maintain cooling airflow.
• Examine high-voltage cable insulation for damage from wear or rodents.
• Replace cabin air filter if dirty to support proper battery cooling airflow.
• Review hybrid recall notices for manufacturer fixes to known system issues.