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Infiniti QX80Model year report

2018 Infiniti QX80 Problems

Complaints
9filed with NHTSA
Median mileage
13,700miles, 2 complaints with mileage
Recalls
2campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—no overall rating published
EPA fuel economy
16 mpgcombined, 5.6L 8-cyl RWD · 14 city / 20 hwy

Sources: NHTSA records for the 2018 Infiniti QX80 (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error

NHTSA recorded 9 consumer complaints for the 2018 Infiniti QX80. The part named most often is electrical system, with 4 complaints (44% of the total), followed by other or unknown (3) and air bags (2). 2 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 13,700 miles. Of all complaints, 1 involved a crash, 1 an injury, according to the filers. NHTSA lists 2 recall campaigns and 124 technical service bulletins for this model year. Electrical system complaints overlap with 51 technical service bulletins filed under the same part. Other or unknown complaints overlap with 2 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

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.”

NHTSA complaint #11431105, filed 2021-08, 25,000 miles

Other or unknown: “Subject: Request for Safety Defect Investigation and Recall – 2018 INFINITI QX80 Infotainment/Navigation Screen To Whom It May Concern: I am writing to formally request an investigation into a serious and recurring problem with the infotainment/navigation screen in my 2018 INFINITI QX80 and to request that INFINITI consider a safety recall or other appropriate remedy. The screen is malfunctioning by going black, freezing, failing to come on, and repeatedly turning on and off while I am driving the vehicle. This is not simply an inconvenience. …”

NHTSA complaint #11755996, filed 2026-08

Air bags: “My vehicle is one oil change past the bumper to bumper warranty or 4000 miles. Air bag light is on. My regular mechanic took to dealer. Dealer said they see this problem all the time. Told us that in an accident the bags would not deploy and repair is more than $5000! We contacted Nissan north America. Extremely rude employee said too bad as vehicle was out of warranty. Said maybe could have done something if we had serviced vehicle at dealer instead of private shop but too bad. Explained that mechanic at dealership said this is a common problem and he was surprised it is not a recall. …”

NHTSA complaint #11425219, filed 2021-07

Mileage when problems were reported

100% of the 2 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 2,400 and 25,000 miles.

50%0–100%10–2550%25–500%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (2 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 13,700 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

201920212023202432026
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Crash test ratings

NHTSA's 5-Star Safety Ratings for the 2018 Infiniti QX80. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.

VersionOverallFrontalSideSide poleRollover
QX80 · SUV AWDnot rated—553 · 21.6% risk
QX80 · SUV RWDnot rated—553 · 23.6% risk

Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.

Fuel economy and running cost

EPA ratings for each 2018 Infiniti QX80 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
QX80 2WD5.6L 8-cyl7-speed automatic142016$5,150
QX80 4WD5.6L 8-cyl7-speed automatic131915$5,500

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2018 Infiniti QX80 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 124 on record; the latest 10 are shown.

See all 124 bulletins →

Other model years of the Infiniti QX80

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
202689002—18—Too new
202583,0004—18—Too new
2021762,0003416—Not enough data
202062,5002416—Not enough data
20192111,0002416—Falling
2018913,7002—16—Not enough data
20171777,0001—16—Falling
20161527,4481—16—Rising
20151851,0002—16—Rising
20142178,0004—16—Falling

All Infiniti QX80 model years

Frequently asked questions

How many NHTSA complaints does the 2018 Infiniti QX80 have?

NHTSA recorded 9 consumer complaints for the 2018 Infiniti QX80 as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2018 Infiniti QX80 is reported most often?

Electrical system is named most often, in 4 complaints (44% of the total), followed by other or unknown with 3.

Has the 2018 Infiniti QX80 been recalled?

NHTSA lists 2 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2018 Infiniti QX80 get?

The EPA rates the 2018 Infiniti QX80 (QX80 2WD, 5.6L 8-cyl) at 16 mpg combined, 14 city and 20 highway, with an estimated annual fuel cost of $5,150 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2018 Infiniti QX80 reported?

Among the 2 complaints that include a mileage, the median is 13,700 miles and the middle half falls between 2,400 and 25,000 miles; 100% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Crash ratings are from NHTSA’s New Car Assessment Program. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.