What breaks most · 1997 to 2006 model years
Infiniti QX4 problems by year
Owners have filed 256 safety complaints with NHTSA about the Infiniti QX4 across model years 1997 to 2006. Three years stand out: 2001 for equipment and infotainment complaints, 1997 for suspension complaints and 1999 for suspension complaints. The quietest years are 2003, 2000 and 1998.
- Years to check closely: 2001, 1997, 1999
- Fewest complaints: 2003, 2000, 1998
- Complaints on file
- 2561997 to 2006, all trims
- Worst year
- 200168 complaints
- Crashes reported
- 313 fires · 19 injuries · 1 deaths
- Typical failure mileage
- 123kMedian where owners gave mileage
- Recall campaigns
- 23Across 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 |
|---|---|---|---|---|
| 42 | 7 | 2 | Suspension (17) | |
| 28 | 5 | 2 | Suspension (9) | |
| 40 | 4 | 2 | Suspension (11) | |
| 26 | 1 | 3 | Suspension (9) | |
| 68 | 7 | 4 | Equipment and infotainment (18) | |
| 31 | 5 | 6 | Suspension (13) | |
| 19 | 2 | 4 | Suspension (8) | |
| 1 | 0 | 0 | Brakes (1) | |
| 1 | 0 | 0 | Brakes (1) |
What fails on the 2001 Infiniti QX4
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Equipment and infotainment | 26% |
18 | 0 | — |
| Body and structureDoors, latches and body hardware | 24% |
16 | 0 | Shop body and structure parts for the 2001 Infiniti QX4 |
| SuspensionStruts, springs and control arms | 13% |
9 | 0 | Shop suspension parts for the 2001 Infiniti QX4 |
| Powertrain and transmissionTransmission parts | 9% |
6 | 1 | Shop powertrain and transmission parts for the 2001 Infiniti QX4 |
| SteeringPower steering pumps, racks and hoses | 7% |
5 | 0 | Shop steering parts for the 2001 Infiniti QX4 |
| Fuel systemFuel pumps and injectors | 6% |
4 | 1 | Shop fuel system parts for the 2001 Infiniti QX4 |
| Engine and coolingRadiators, thermostats and cooling | 6% |
4 | 1 | Shop engine and cooling parts for the 2001 Infiniti QX4 |
| Brakes (hydraulic)Brake pads, rotors and calipers | 3% |
2 | 1 | Shop brakes (hydraulic) parts for the 2001 Infiniti QX4 |
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 suv has been recalled for unusual rusting of the entire underside, the NHTSA said the struts may rust and break away from the body, that is happening. We called the nissan dealer in winchester virginia, they lied and said there is no such recall.
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While on interstate 10, the qx4 shakes uncontrollably while driving at higher speeds and the steering wheel does not turn in portion to the rotation of turning the wheel. Changed the struts in the front and the back and shocks without any progress.
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Broken strut tower/housing on 1999 qx4. Mechanic just advised it has rusted and torn away on the drivers side. Car is considered unsafe to drive because it is impacting the steering column shaft.
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 QX4 years have the most problems?
By NHTSA complaint volume, 2001, 1997, 1999 carry the most filings on the Infiniti QX4. The 2001 alone has 68 complaints, led by equipment and infotainment.
What is the most common Infiniti QX4 problem?
On the 2001 model year, the most-reported component is equipment and infotainment with 18 complaints. The table above lists the top components for every year.
At what mileage do Infiniti QX4 problems start?
The median mileage at failure across all Infiniti QX4 complaints that include mileage is about 123,000 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.