What breaks most · 2001 to 2008 model years
Infiniti FX45 problems by year
Owners have filed 58 safety complaints with NHTSA about the Infiniti FX45 across model years 2001 to 2008. Three years stand out: 2003 for powertrain and transmission complaints, 2004 for air bags complaints and 2005 for air bags complaints. The quietest years are 2001 and 2006.
- Years to check closely: 2003, 2004, 2005
- Fewest complaints: 2001, 2006
- Complaints on file
- 582001 to 2008, all trims
- Worst year
- 200322 complaints
- Crashes reported
- 10 fires · 1 injuries · 0 deaths
- Typical failure mileage
- 60kMedian where owners gave mileage
- Recall campaigns
- 40Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 1 | 0 | 0 | Electrical system (1) | |
| 22 | 1 | 9 | Powertrain and transmission (4) | |
| 18 | 0 | 7 | Air bags (5) | |
| 11 | 0 | 9 | Air bags (4) | |
| 2 | 0 | 7 | Air bags (2) | |
| 1 | 0 | 4 | Air bags (1) | |
| 3 | 0 | 4 | Air bags (1) |
What fails on the 2003 Infiniti FX45
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Powertrain and transmissionTransmission parts | 18% |
4 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| Body and structureDoors, latches and body hardware | 18% |
4 | 0 | Shop body and structure parts for the 2003 Infiniti FX45 |
| Exterior lightingHeadlights, tail lights and bulbs | 14% |
3 | 0 | Shop exterior lighting parts for the 2003 Infiniti FX45 |
| Air bags | 14% |
3 | 1 | Check recalls for air bags on NHTSA.gov |
| Fuel systemFuel pumps and injectors | 9% |
2 | 0 | Shop fuel system parts for the 2003 Infiniti FX45 |
| Brakes (hydraulic)Brake pads, rotors and calipers | 9% |
2 | 0 | Shop brakes (hydraulic) parts for the 2003 Infiniti FX45 |
| VisibilityMirrors and glass | 5% |
1 | 0 | Shop visibility parts for the 2003 Infiniti FX45 |
| Speed control and throttleThrottle and pedal sensors | 5% |
1 | 0 | Shop speed control and throttle parts for the 2003 Infiniti FX45 |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
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The child was able to move the gear from park without the consumer being present to step on the brakes or without the key being in the vehicle. The manufacture states the vehicle is designed as such. *nm
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The door lock on the passenger front door no longer works via the power door lock switch or key fob. It must locked/unlocked manually. The mechanic reported that the lock actuator needed to be replaced.
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All 4 door lock actuators have failed. Cannot enter or exist vehicle without manually unlocking doors. Only drivers door has key entry, leaving 3 unsafe doors with no way of entry.
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 30, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Infiniti FX45 years have the most problems?
By NHTSA complaint volume, 2003, 2004, 2005 carry the most filings on the Infiniti FX45. The 2003 alone has 22 complaints, led by powertrain and transmission.
What is the most common Infiniti FX45 problem?
On the 2003 model year, the most-reported component is powertrain and transmission with 4 complaints. The table above lists the top components for every year.
At what mileage do Infiniti FX45 problems start?
The median mileage at failure across all Infiniti FX45 complaints that include mileage is about 60,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.