Most common 2001 Infiniti QX4 problems
Share of the 73 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Infiniti QX4 complaints by model year
Best QX4 years: 2000. Years to avoid: 2001, 1997. Compare all years →
2001 Infiniti QX4 recalls (4)
Suspension › Front
Nissan is recalling certain model year 1996-2004 pathfinder and model year 1997-2003 Infiniti qx4 vehicles originally sold, or currently registered in, connecticut, delaware, iowa, illinois, indiana, massachusetts, maine, maryland, michigan, minnesota, missouri, new hampshire, new jersey, new york, ohio, pennsylvania, rhode…
Remedy: Nissan will inspect the strut housing and repair the vehicles as necessary, free of charge. An interim notification letter was sent out in May 2011. The second notice was mailed on July 25, 2011.
Fuel system, gasoline › Storage › Tank assembly › Filler pipe and cap
On certain vehicles originally sold in or currently registered in the states of connecticut, delaware, iowa, illinois, indiana, kentucky, massachusetts, maine, maryland, michigan, minnesota, new hampshire, new jersey, new york, ohio, pennsylvania, rhode island, tennessee, vermont, virginia, west virginia , wisconsin and the…
Remedy: Dealers will replace the fuel filler tube assembly with a new one with an improved coating process. The recall began on November 26, 2007. Owners May contact Nissan at 1-800-647-7261.
Structure › Body › Hatchback/liftgate › Hinge and attachments
Vehicle description: sport utility vehicles. Some of the brackets used to attach the two gas struts to the rear door (hatch) May have been improperly made. At high ambient temperatures, the increase in gas pressure in the strut(s) could cause one or both brackets to bend, resulting in the struts detaching from the bracket(s)…
Remedy: Dealers will replace the strut brackets. Owner notification began September 24, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a…
Electrical system › Ignition
Vehicle description: passenger vehicles. These vehicles May have an ignition lock assembly with improperly seated key cylinder cap connector pins. Vibration can cause the connecting pins to loosen and/or fall out allowing the key cylinder cap to disengage from the key cylinder.
Remedy: Dealers will inspect the ignition lock assembly and assemblies with loose or missing end cap connector pins will be replaced. A ring clip will be installed on all others to prevent loosening of the pins.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2001 Infiniti QX4:
Frame/Body Structure Corrosion
In their Defect Information Report (DIR) of April 20, 2011, Nissan North America, Inc. (Nissan) notified NHTSA that it would conduct a safety recall of certain 1996-2004 Nissan Pathfinder and 1997-2003 Infinity QX4 vehicles to repair corrosion damage to the driver's side front strut tower.The vehicles included in the recall are those that were originally sold, or are currently registered in salt belt states…
What 2001 Infiniti QX4 owners say
Equipment & accessories
The built-on running boards (these are not an add-on feature to the vehicle, but came standard on all qx-4s) have brackets and a tubular steel support beams that support the weight of any passenger stepping on them to enter the vehicle. The support beam and support brackets have entirely rusted away; there is little to no other rust on other areas of the vehicle. A local body shop identified and notified the owner of the danger associated with non-supported running boards. A consumer could easily be injured if stepping on the running boards to enter the vehicle and having them collapse. The injury certainly could be more acute for elderly, disabled, or children in the event of a collapse. The tubular steel support beams and brackets have no rust inhibitor on them while the other metal sections of the running boards were coated with rust inhibitor and show no rust. …
I have a 2001 Infiniti QX4 with the bose 6 disk cd changer. The cd changer stopped working around 78,000 miles. It would read error2. I have sent numerous emails to Nissan with no reply. Clarion made this cd player for Nissan, but got so overwhelmed with repairs that they stopped taking repairs from customers. Now they force you to go through your dealership to get the unit repaired which costs even more money. Once the unit reads err2 you cannot retrieve any of your cds and of course the unit will not play the cds either. This web forum http://forum.ecoustics.com/cgi-bin/bbs/show.pl?4/137782 will show you the 100's if not 1000's of people who have been affected. Clarion is having a hard time stocking this part, but they nor Nissan are offering to fix the unit or admit poor production. I had to use an outside vendor and it still cost me $300.
Body & structure
Tl* the contact owns a 2001 Infiniti QX4. Upon inspecting the vehicle, it was noticed that there was severe corrosion of the frame near the strut on the driver's side. The contact took the vehicle to an independent mechanic where it was repaired. The contact was reimbursed. Shortly after the repair, the same failure occurred on the passenger side of the vehicle. The vehicle was taken to the dealer where it was diagnosed that there was corrosion on the passenger side. The vehicle was serviced per NHTSA campaign number: 11V244000 (steering, suspension) but the remedy failed to repair the vehicle. The contact stated that the frame continued to corrode after the recall repair. The contact stated that the recall repair did not adequately repair the failure with the excessive corrosion. The manufacturer was notified of the failure. The approximate failure mileage was 120,000.
Tl* the contact owns a 2001 Infiniti QX4. The vehicle was taken to the dealer for routine maintenance. While being inspected, the technician found that the frame and underbody were corroded on the front passenger side. The contact was informed that the vehicle was unable to be repaired since it was structurally unsafe. There was considerable corrosion to the frame of the vehicle and could collapse while being lifted. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 201,000.
Suspension
The contact owns a 2001 Infiniti QX4. The contact stated that while driving at unknown speed, there was an abnormal noise coming from the rear of the vehicle. The vehicle was taken to an independent mechanic where it was diagnosed that the rear struts and rear brackets needed to be replaced due to corrosion. The vehicle was taken to the dealer where they declined to repair the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 270,000.
Tl* the contact owns a 2001 Infiniti QX4. Upon inspecting the vehicle, it was noticed that there was severe corrosion of the frame near the strut on the driver's side. The contact took the vehicle to an independent mechanic where it was repaired. The contact was reimbursed. Shortly after the repair, the same failure occurred on the passenger side of the vehicle. The vehicle was taken to the dealer where it was diagnosed that there was corrosion on the passenger side. The vehicle was serviced per NHTSA campaign number: 11V244000 (steering, suspension) but the remedy failed to repair the vehicle. The contact stated that the frame continued to corrode after the recall repair. The contact stated that the recall repair did not adequately repair the failure with the excessive corrosion. The manufacturer was notified of the failure. The approximate failure mileage was 120,000.
2001 Infiniti QX4 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.5L 6-cyl | 4-speed automatic | RWD | 14 / 18 / 15 |
| 3.5L 6-cyl | 4-speed automatic | 4WD/AWD | 14 / 17 / 15 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2001 Infiniti QX4 a good car?
Based on 73 owner complaints filed with NHTSA, the 2001 QX4 rates avoid: 3.1× as many complaints as a typical year of the QX4 at the same age. It is one of the QX4 years we suggest avoiding. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2001 Infiniti QX4?
The equipment & accessories — 18 complaints, 25% of all complaints for this model year, most often about electrical › radio/tape deck/cd etc.. Next are the body & structure (17) and suspension (12).
How many recalls does the 2001 Infiniti QX4 have?
There are 4 recalls for the 2001 Infiniti QX4, the most recent from April 20, 2011 (front). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Infiniti QX4?
The best years by complaints, compared at the same age, are 2000. Years to avoid or approach with caution: 2001 and 1997. See the full Infiniti QX4 years comparison.
At what mileage do 2001 Infiniti QX4 problems happen?
The median mileage reported in complaints is about 100,000 miles; 15% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.