Infiniti QX4: problems, complaints, bulletins
Summary for the Infiniti QX4 across 9 model years: 277 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Suspension 31% of all complaints
- 2 Structure 19% of all complaints
- 3 Steering 18% of all complaints
- 4 Equipment 8% of all complaints
- 5 Service brakes 6% of all complaints
- 6 Engine and cooling 6% of all complaints
- 7 Fuel system 6% of all complaints
- 8 Powertrain 6% of all complaints
- Suspension: 87 complaints (31% of all), 5 of them with a crash reported by the owner.
- Structure: 52 complaints (19% of all).
- Steering: 51 complaints (18% of all), 7 of them with a crash reported by the owner.
- Equipment: 23 complaints (8% of all).
- Service brakes: 18 complaints (6% of all), 4 of them with a crash reported by the owner.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 3.3 L · petrol · 6 cyl 1997–2000
- 3.5 L · petrol · 6 cyl 2001–2003
- automatic, 4-speed 1997–2003
Drive: AWD, RWD
Symptoms owners describe
How many of the 277 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Suspension | 87 | 5 | 0 |
| Structure | 52 | 0 | 0 |
| Steering | 51 | 7 | 0 |
| Equipment | 23 | 0 | 0 |
| Service brakes | 18 | 4 | 0 |
| Engine and cooling | 17 | 2 | 0 |
| Fuel system | 17 | 2 | 0 |
| Powertrain | 17 | 2 | 0 |
| Air bags | 15 | 10 | 0 |
| Vehicle speed control | 14 | 7 | 0 |
| Electrical system | 12 | 1 | 0 |
| Wheels | 9 | 0 | 0 |
| Fuel/propulsion system | 8 | 0 | 0 |
| Tires | 6 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Riding with a co worker coming from breakfast on veterans parkway,1st default was front axle,2nd default airbags didn't deployed,so I'm telling the driver to slow down cause of the axle he refuses and hit the guard rail doing 70mph hit 3 times before started rolling off guard rail.was hospitalized
Takata recall air bag did not deploy when stationery 2002 infiniti qx4 stopped at traffic light on city street was hit in the rear by another vehicle which was accelerating. Pushed infiniti qx4 25 feet into oncoming traffic.
I began to turn left & the car suddenly jerked us to the left & then went out of control. As we were jerked to the left, I felt the steering wheel jerk and then it started spinning like a top. There was no way to control the steering. We slammed into an embankment and my 7 yr old daughter hit her head.
A buck deer hit my 1998 infiniti qx4 I went off road n hit a tree cutting in half I was able to kick out windshield crawd out went to neighbors home she called for help morel to story I have a crack in skull under eye contusion and concussion with chronic pain up down my spine I have surgery on my orbital floor on…
Police trooper indicated that 99 out of 100 driver in single vehicle accident would have received a ticket for wreckless driving. Car has been determined to be a total loss. It is currently in impound at a front royal lot.
The engine shut off, there was no power for anything! No steering, no brakes, no possible way to stop the vehicle from crashing. The vehicle was propelled across the hwy from the right shoulder and as if the drivers corner was pinned to the road, it turned just enough to face the concrete median, which it hit head-on…
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Suspension. Wheel alignment, control arms, subframe, even tire wear.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.