1999 Infiniti Qx4: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"DRIVE SHAFT EXPERIENCES CONTINUED VIBRATIONS AT SPEEDS OF 40-65 MPH. MJS"
"THE VEHICLE EXPERIENCED A SUDDEN LOSS OF CONTROL WHILE DRIVING UNDER NORMAL DRIVING CONDITIONS RESULTING IN THE VEHICLE HITTING A CURB AND THEN A WALL WHICH CAUSED DAMAGE TO THE FRONT BUMPER, PASSENGER SIDE OF VEHICLE AND THE TIRE PUNCTURED. NLM"
"VEHICLE REAR ENDED ANOTHER VEHICLE AT 15 MPH, AND FROTAL AIR BAGS DID NOT DEPLOY. DEALER HAS BEEN CONTACTED. *AK"
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Who Files Complaints?
Infiniti Qx4 — Other Years
See how this model compares across different model years.
Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.
Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.
Data through: 2026-03-28
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