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Infiniti QX30Model year report

2018 Infiniti QX30 Problems

Complaints
25filed with NHTSA
Median mileage
42,500miles, 10 complaints with mileage
Recalls
3campaigns on record
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA crash rating
—no overall rating published
EPA fuel economy
27 mpgcombined, 2.0L 4-cyl RWD · 24 city / 33 hwy

Sources: NHTSA records for the 2018 Infiniti QX30 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 25 consumer complaints for the 2018 Infiniti QX30. The part named most often is electrical system, with 10 complaints (40% of the total), followed by air bags (5) and other or unknown (5). 10 of the complaints include a mileage, and 60% of those were filed for vehicles with under 50,000 miles; the median is 42,500 miles. NHTSA lists 3 recall campaigns and 108 technical service bulletins for this model year. Electrical system complaints overlap with 39 technical service bulletins filed under the same part. Air bags complaints overlap with 1 recall campaign and 1 technical service bulletin filed under the same part.

Not compared (fewer than 3 comparable model years). Model years 2008–2023 of the same vehicle that have at least 25 complaints are compared, and a model needs at least 3 of them.

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.

Also reported: Engine cooling (1), Exterior lighting (1), Forward collision avoidance (1), Fuel system (1), Lane departure (1), Seat belts (1), Body and structure (1), Vehicle speed control (1), Wheels (1).

Example complaints

Electrical system: “Purchased the car brand new two months ago. Discovered the left hatch harness cover is crushed. Was told by Infiniti regional manager everything electrical is run thorough that harness and every time the hatch is opened and closed the wiring is getting pinched. Already have had the car to the dealership for black backup screen, audio problems, lights not turning off, radio not shutting off after car is turned off and door is opened. Was told that was a software problem and that the software has been updated. Infiniti won't replace the wiring since nothing major has happened yet. …”

NHTSA complaint #11123544, filed 2018-08, 2,200 miles

Air bags: “I am writing to express my concerns regarding a malfunction in my vehicle, specifically related to the airbags and the steering angle sensor or possibly the steering wheel itself. Over the past year, I have noticed a significant change in my vehicle's performance. Initially, I began hearing a constant clicking sound coming from the steering wheel or its vicinity whenever I make turns, particularly noticeable when I reverse to leave my apartment. …”

NHTSA complaint #11622979, filed 2024-10

Other or unknown: “I am submitting a safety concern regarding the headliner in my vehicle. The rear portion of the headliner has detached and is sagging downward. As shown in the attached photo, the sagging material obstructs visibility through the rear window, significantly reducing the driver’s ability to see behind the vehicle. This creates a dangerous situation, particularly when reversing, changing lanes, or monitoring traffic approaching from the rear. The obstruction compromises rearward visibility, which is a critical safety function. …”

NHTSA complaint #11690929, filed 2025-10

Steering: “The vehicle, with low mileage and no accidents, has had a few engine-related issues over the last few months. Recently, I went to turn it on, and many components of the car wouldn't work (no parking, power steering, engine issues, seats won't move, etc.). I live in a very dangerous city, and my car not working has placed me in a dangerous concern for my well-being. I took it to certified Infiniti dealer who said that the entire electrical harness has been damaged, rendering the vehicle a safety hazard, and quoted me $19,000 in repairs. …”

NHTSA complaint #11529022, filed 2023-06

Mileage when problems were reported

60% of the 10 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 23,000 and 52,000 miles.

20%0–1010%10–2530%25–5030%50–750%75–10010%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (10 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 42,500 miles.

Complaints by year filed

Trend: rising. Complaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

201820202022202472026
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.

Fuel economy and running cost

EPA ratings for each 2018 Infiniti QX30 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
QX30 RWD2.0L 4-cyl7-speed automatic243327$3,050
QX30 AWD2.0L 4-cyl7-speed automatic213025$3,300

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 QX30 → · 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. 108 on record; the latest 10 are shown.

See all 108 bulletins →

Other model years of the Infiniti QX30

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20182542,5003—27Not compared (fewer than 3 comparable model years)Rising
20173325,0004—27Not compared (fewer than 3 comparable model years)Stable

All Infiniti QX30 model years

Frequently asked questions

How many NHTSA complaints does the 2018 Infiniti QX30 have?

NHTSA recorded 25 consumer complaints for the 2018 Infiniti QX30 as of Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2018 Infiniti QX30 is reported most often?

Electrical system is named most often, in 10 complaints (40% of the total), followed by air bags with 5.

Has the 2018 Infiniti QX30 been recalled?

NHTSA lists 3 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 QX30 get?

The EPA rates the 2018 Infiniti QX30 (QX30, 2.0L 4-cyl) at 27 mpg combined, 24 city and 33 highway, with an estimated annual fuel cost of $3,050 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2018 Infiniti QX30 reported?

Among the 10 complaints that include a mileage, the median is 42,500 miles and the middle half falls between 23,000 and 52,000 miles; 60% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. 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.