2021 Toyota Prius Pre-Purchase Inspection Checklist
Known Issues — 2021 Toyota Prius
CRITICAL
Inverter cooling pump failure risk remains
MODERATE
High-voltage battery module degradation on higher-mileage units
MINOR
Windshield A-pillar wind noise
MINOR
Rear view visibility limited by design
MINOR
Dealer service costs higher than non-hybrid competitors
What to Inspect
- Test HV battery health via scan tool
- Check inverter cooling pump
- Test all hybrid functions on startup
- Verify Toyota Safety Sense 2.0 functions
- Check all door seals for wind noise
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) | 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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