AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2005 Infiniti Q45
Overall rating NHTSA-grounded
Average
Estimated 5-year repair + maintenance cost: $5,500–$7,000
The 2005 Infiniti Q45 has an average reliability due to minor recalls and few owner complaints. Primary concerns include side airbag non-deployment due to wiring issues and brake light failures. Maintenance costs remain moderate, contributing to an average cost-of-ownership outlook.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| airbag connectors | 70,000–100,000 miles | $300–$600 | common |
| brake lights | 50,000–80,000 miles | $150–$300 | common |
| rear seat latches | 60,000–90,000 miles | $200–$400 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change
- Brake fluid replacement
- Coolant flush
- Timing chain inspection
- Tire replacement
- Transmission fluid change
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Airbag warning light
- Brake light malfunction
- Hard-to-attach child seats
- Erratic vehicle speed control
Generated by gpt-4o on 8/20/2026. Cost ranges are conservative estimates that account for typical regional variation.