Infiniti Q45 reliability: common problems by model year
Across 2 model years, the Infiniti Q45 has 12 owner-filed NHTSA complaints and 1 recall on record. The most-reported areas are electrical system and suspension. 1996 drew the most complaints (8), 2001 the fewest (4).
2
Model years tracked
12
Owner complaints
1
Recalls
8
Median per year
Source: NHTSA complaints and recalls filed for Infiniti Q45 vehicles (US, public record). Typical used asking price $6,499–$10,329.
Which Q45 years have the most problems?
Complaint volume by model year. Raw NHTSA totals, not adjusted for sales volume or time on the road, so older and higher-selling years accumulate more. Every year links to its full breakdown.
Sentiment is polarized and heavily dependent on the vehicle's age and condition. Long-term owner reports from the 1990s and early 2000s models praise the vehicles for their powerful V8 engines, exceptional comfort, quiet and refined cabins, and high-quality Bo
Catastrophic depreciation and high repair costs: vehicles lose value rapidly and require very expensive repairs post-100,000 miles, with parts being costly and hard to find. Frequency: very frequent.
Aging electrical and sensor failures: numerous sensors fail causing stalling, rough running, and check engine lights; window regulators, key fobs, and HVAC system components are problematic. Frequency: very frequent.
Power steering system failures: pumps, racks, and high-pressure lines leak and fail, causing fluid expulsion from the reservoir and noisy operation. Frequency: recurrent.
Fuel system problems: fuel pumps fail and are discontinued, fuel level sensors fail, fuel lines and tanks rust/corrode in older models. Frequency: recurrent.
Poor fuel economy: V8 engines require premium fuel and achieve low real-world MPG (examples of 8 MPG and "gas guzzler" are cited), which is a noted ownership cost. Frequency: recurrent.
Owner insights cover all generations of the Q45. Individual model years are broken down above.