FaultScore

Worst years for a Infiniti QX4

Owners have filed 389 complaints about the Infiniti QX4 with NHTSA across model years 1997 to 2006. More of them are about the suspension than anything else.

Avoid

2001 Infiniti QX4

93 complaints — the highest FaultScore of any year, mostly equipment & accessories.

Cleanest on record

2000 Infiniti QX4

40 complaints — the lowest FaultScore of the graded years.

Every Infiniti QX4 year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded
Year Grade Complaints Crashes Fires Median miles Most reported
2006 1 0 0 Brakes
2004 1 0 0 Brakes
2003 B 25 2 0 123,000 Suspension
2002 C 54 7 0 121,500 Suspension
2001 D 93 9 0 102,295 Equipment & Accessories
2000 B 40 1 1 178,592 Body & Structure
1999 C 69 9 2 160,000 Steering
1998 C 46 11 0 161,000 Suspension
1997 C 60 12 0 120,000 Suspension

What breaks on a Infiniti QX4

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Suspension 88 22.6%

Worst in 1997

Body & Structure 53 13.6%

Worst in 2001

Steering 51 13.1%

Worst in 1999

Worst in 1999

Equipment & Accessories 24 6.2%

Worst in 2001

Engine & Cooling 20 5.1%

Worst in 1997

Brakes 19 4.9%

Worst in 1998

Transmission & Drivetrain 18 4.6%

Worst in 2001

Airbags 16 4.1%

Worst in 2002

Acceleration & Cruise Control 14 3.6%

Worst in 1998

Other & Unspecified 13 3.3%

Worst in 2001

Electrical System 12 3.1%

Worst in 1999

Wheels 10 2.6%

Worst in 2001

Windows, Mirrors & Wipers 6 1.5%

Worst in 1999

Exactly what failed on a Infiniti QX4

The named sub-assemblies behind those complaints, across every model year.

Body 29 25.9%
Front 23 20.5%
Frame AND Members 13 11.6%
Radio/Tape Deck/Cd Etc. 12 10.7%
Filler Pipe AND CAP 9 8.0%
Automatic Transmission 9 8.0%
Engine 5 4.5%
Underbody Shields 4 3.6%
Accelerator Pedal 4 3.6%
Antilock/Traction Control/Electronic Limited Slip 4 3.6%

Complaints filed over time

Every complaint about every Infiniti QX4, by the month it reached NHTSA.

Apr 1997 peak 11 Apr 2026

Compare the Infiniti QX4

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.