Avoid: 2008 (lowest Year Scores on complaints per year on the road, crash reports and recalls)
Best: 2013 (few owner reports)
6 model years of NHTSA owner complaints and recalls · How we grade
Across 5 model years, the Infiniti EX has 92 owner-filed NHTSA complaints and 5 recalls on record. The most-reported areas are air bags and engine. 2008 drew the most complaints (44), 2012 the fewest (5).
Source: NHTSA complaints and recalls filed for Infiniti EX vehicles (US, public record).
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.
Highest: 2008 (44 complaints). Lowest: 2012 (5).
Sentiment is sharply divided, creating a low-confidence overall assessment.
The owner's manual specifies a requirement for 91+ octane premium fuel for maximum performance, with temporary use of regular 87 octane requiring precautions. This leads to higher running costs.
Noted as a con, with real-world mileage not being efficient. The V6 engine is described as not designed for efficiency.
The sloping roofline severely limits cargo utility, and the rear seat area is described as tight, with limited headroom.
A single, detailed report lists numerous failures including: power steering failure, heat shield rattling, heater core/intern cooler clog, sunroof motor failure leading to leaks, tilt/telescoping steering wheel failure, radiator failure, power steering rack leak, shift-to-park cable failure, gas pedal sensor failure, cracking dashboard, door window actuator failure, and engine timing issues.: ".
Mentioned as a known expensive issue affecting some VQ35HR and VQ37HR engines, potentially including 2012 models. Some experience failure before 100,000 miles.
Owner insights cover all generations of the EX. Individual model years are broken down above.
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