Most common 2018 Infiniti QX80 problems
Share of the 9 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Infiniti QX80 complaints by model year
Best QX80 years: 2020, 2018, 2021. Years to avoid: 2019. Compare all years →
2018 Infiniti QX80 recalls (2)
Equipment › Other › Labels
Nissan North America, Inc. (Nissan) is recalling certain 2020-2026 Nissan Armada, 2011-2013 Infiniti QX56, and 2014-2027 QX80 vehicles equipped with 22" wheels. The Gross Axle Weight Rating (GAWR) listed on the certification label is incorrect, which can allow the vehicle to be overloaded.
Remedy: Dealers will install new labels, free of charge. Additionally, Nissan will mail replacement labels to owners. Interim letters notifying owners of the safety risk were mailed September 2, 2026.
Back over prevention › Sensing system › Camera
Nissan North America, Inc. (Nissan) is recalling certain 2018-2019 Nissan Altima, Armada, Frontier, Kicks, Leaf, Maxima, Murano, NV, NV200, Pathfinder, Rogue, Rogue Sport, Sentra, Titan, Titan Diesel, Versa Note and Versa Sedan vehicles, as well as Infiniti Q50, Q60, QX30 and QX80 vehicles.
Remedy: Nissan will notify owners in phases, having dealers update the back-up camera settings software, free of charge. The recall began November 11, 2019 and all affected VINs should be activated.
What 2018 Infiniti QX80 owners say
Electrical system
The contact wife owns a 2018 Infiniti QX80 AWD. The contact stated that the Telematics Control Unit (TCU) of the vehicle operated in 3G however, the AT&T servers were shutting down causing the functionality of the TCU to become inoperable. The vehicle was not taken to a dealer. The manufacturer was informed of the failure and informed the contact that there was no solution to the failure at the moment. The failure mileage was approximately 25,000.
The primary instrument gauge for the QX80 starts to lose illumination from around the speedometer and tachometer. The vehicle has 55,000 miles and is a 2018 model. This is the SECOND time this has happened, with the instrument gauge being replaced first at approximately 32,000 miles for the same reason. Currently the instrument gauge is continuing to lose lighting - making the speedometer impossible to see at night (SAFETY ISSUE). Infiniti Dealership reports that there is a +/- 2 YEAR waitlist for replacement instrument clusters, and that this is a known problem. The same dealership that replaced it a few years ago. This 2nd instrument cluster started going out in the 20-45 mph segment, then 6500-8000 rpm tach, then 0-20 mph.
2018 Infiniti QX80 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 5.6L 8-cyl | 7-speed automatic | RWD | 14 / 20 / 16 |
| 5.6L 8-cyl | 7-speed automatic | 4WD | 13 / 19 / 15 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2018 Infiniti QX80 a good car?
Based on 9 owner complaints filed with NHTSA, the 2018 QX80 rates average: 26% fewer complaints than a typical year of the QX80 at the same age. It is one of the best QX80 years by this measure. 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 2018 Infiniti QX80?
The electrical system — 4 complaints, 44% of all complaints for this model year. Next are the air bags (2) and seat belts (1).
How many recalls does the 2018 Infiniti QX80 have?
There are 2 recalls for the 2018 Infiniti QX80, the most recent from July 15, 2026 (labels). 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 QX80?
The best years by complaints, compared at the same age, are 2020, 2018 and 2021. Years to avoid or approach with caution: 2019. See the full Infiniti QX80 years comparison.
At what mileage do 2018 Infiniti QX80 problems happen?
The median mileage reported in complaints is about 25,000 miles; 100% 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.