2015 Toyota Prius Pre-Purchase Inspection Checklist
Known Issues — 2015 Toyota Prius
CRITICAL
Inverter coolant pump failure causing hybrid system shutdown
CRITICAL
High-voltage battery degradation on high-mileage examples
MODERATE
EGR cooler failure causing rough idle and coolant loss
MODERATE
Oil consumption on 1NZ engine
MINOR
Windshield defroster element failure
What to Inspect
- Test hybrid battery health with a scan tool (SOH reading)
- Verify inverter cooling system function
- Check EGR cooler for coolant loss
- Check oil level for consumption
- Test all defroster elements
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change | every 5,000 miles | $40-$60 |
| HV battery inspection | every 30,000 miles | $80-$150 |
| Coolant flush (inverter loop) | every 100,000 miles | $120-$200 |
| Brake pads (regenerative — long life) | every 80,000 miles | $100-$160 |
| Cabin air filter | every 15,000 miles | $15-$30 |
| 12V auxiliary battery | every 5-7 years | $150-$220 |
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