AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2003 Infiniti Fx45
Overall rating NHTSA-grounded
Average
Estimated 5-year repair + maintenance cost: $5,000–$9,000
The 2003 Infiniti FX45 has an average reliability rating due to recurring airbag recalls and common complaints related to lighting and powertrain issues. While the airbag inflator recall is significant, routine maintenance can mitigate other problems.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| Airbag inflator | 60,000–100,000 miles | $200–$600 | very common |
| Fuel filler hose | 50,000–80,000 miles | $150–$300 | common |
| Brake caliper | 60,000–90,000 miles | $200–$450 | occasional |
| Headlamp assembly | 40,000–70,000 miles | $250–$500 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change every 5,000 miles
- Brake fluid replacement every 30,000 miles
- Transmission fluid change every 60,000 miles
- Spark plug replacement every 50,000 miles
- Coolant replacement every 60,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Passenger airbag warning light
- Frequent headlight failures
- Transmission shifting issues
- Fuel smell during refueling
Generated by gpt-4o on 8/20/2026. Cost ranges are conservative estimates that account for typical regional variation.