AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2021 Hyundai Ioniq Plug-In Hybrid
Overall rating NHTSA-grounded
Average
Estimated 5-year repair + maintenance cost: $3,000–$4,500
The 2021 Hyundai Ioniq Plug-in Hybrid has no recalls but shows some repeated complaints, particularly in the electrical system and brakes, indicating an average reliability level.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| electrical system | 20,000–40,000 miles | $300–$600 | common |
| service brakes | 30,000–50,000 miles | $250–$500 | common |
| collision avoidance | 20,000–40,000 miles | $200–$400 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- oil change every 5,000 miles
- battery inspection annually
- brake fluid replacement every 3 years
- air filter replacement every 15,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- intermittent electrical issues
- reduced braking performance
- unexpected collision warnings
Generated by gpt-4o on 8/20/2026. Cost ranges are conservative estimates that account for typical regional variation.