Reliability & cost of ownership
Infiniti Q45 Reliability & Common Problems
How reliable is the Infiniti Q45? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars — then open the year you're shopping for a full reliability and repair-cost forecast.
Infiniti Q45 problems by model year
9 recall entries and 56 owner complaints on file across 6 model years, sourced from the federal NHTSA database.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2005 Q45 | 3 | 4 | No NCAP test | Reliability forecast → |
| 2004 Q45 | 2 | 7 | No NCAP test | Reliability forecast → |
| 2003 Q45 | 1 | 12 | No NCAP test | Reliability forecast → |
| 2002 Q45 | 1 | 20 | No NCAP test | Reliability forecast → |
| 2001 Q45 | 1 | 4 | No NCAP test | Reliability forecast → |
| 2000 Q45 | 1 | 9 | No NCAP test | Reliability forecast → |
Most-complained-about components
Owner complaints filed with NHTSA against the Infiniti Q45, grouped by the component each complaint names — the fastest read on where this model gives trouble.
- electrical system11 complaints
- engine8 complaints
- wheels7 complaints
- vehicle speed control7 complaints
- tires5 complaints
- service brakes5 complaints
- exterior lighting5 complaints
- engine and engine cooling5 complaints