Is the 2018 Infiniti QX30 reliable?

The 2018 Infiniti QX30 has 42 complaints filed with NHTSA (0.9x the segment average). Our reliability verdict: average. Most common issue: ELECTRICAL problems.

What are common problems with the 2018 Infiniti QX30?

Top problems: ELECTRICAL (9 complaints, avg repair $500); OTHER (5 complaints, avg repair $500); ENGINE (5 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2018 Infiniti QX30?

Yes, there are 3 recall(s): SEAT BELTS:FRONT:ANCHORAGE, BACK OVER PREVENTION: SENSING SYSTEM: CAMERA, AIR BAGS:FRONTAL. Contact any Infiniti dealer to verify if recalls have been completed on your specific vehicle.

How much does it cost to fuel a 2018 Infiniti QX30?

The 2018 Infiniti QX30 gets 27 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $1778. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2018 Infiniti QX30?

Estimated US average full-coverage insurance for the 2018 Infiniti QX30 is approximately $2,143/year (sedan-luxury class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2018 Infiniti QX30

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2018 Infiniti QX30 has 42 owner complaints filed with NHTSA — that's 0.9x the segment average of 49. The most common issue is electrical problems (21% of all complaints), specifically: 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 dealer. There are 3 recalls issued for this model year.

Total Complaints

Recalls Issued

—/5

Safety Stars

0.9x

vs Segment Avg

Known Problems(top 5 of 8)

ELECTRICAL

9 complaints

21%

• 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 DEALER
• TL* THE CONTACT OWNS A 2018 INFINITI QX30. THE CONTACT STATED THAT THE INSTRUMENT PANEL SCREEN BLACKED OUT. THE FAILURE OCCURRED EVERY TIME THE ENGINE WAS STARTED. THE FAILURE EVEN AFFECTED THE BACK UP CAMERA SCREEN. WHEN ATTEMPTING TO REVERSE, THE SCREEN BLACKED OUT AND THEN RETURNED TO NORMAL. THE
• WHEN I TURN MY CAR OFF THE RADIO IS STAYING ON AND IF I DON'T CRANK IT EVERY 6-8 HOURS THE BATTERY GOES COMPLETELY DEAD AND I HAVE TO RECHARGE IT

Typical onset: 50K miles Est. repair: $500

“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 DEALER”

— NHTSA complaint filing

When Problems Appear on the 2018 Infiniti QX30

Based on 15 owner complaints that included an odometer reading. Median mileage at time of complaint: 34K miles. Most complaints cluster in the 30-60K miles range.

Overall complaint distribution by mileage

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.

Recalls (3)

SEAT BELTS:FRONT:ANCHORAGE30/05/2018

Nissan North America, Inc. (Nissan) is recalling certain 2018 Infiniti QX30 vehicles. The bolt securing the right-hand side lower seat belt anchorage may have been incorrectly installed during production. This can result in the lower seat belt anchorage detaching in a crash. As such, these vehicles fail to comply with certain requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 210, "Seat Belt Assembly Anchorages", number 209, "Seat Belt Assemblies, and number 208, "Occupant Crash Protection."

Risk: If the lower seat belt anchorage detaches in a crash, it can increase the risk of injury.

Fix: Nissan will notify owners, and dealers will weld in a new retaining plate and secure the seat belt anchorage with a new anchor bolt, free of charge. All vehicles were repaired July 17, 2018. Owners may contact Infiniti customer service at 1-800-662-6200.

Fuel Cost Calculator for 2018 Infiniti QX30

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$1,778

Per month

$148

Per mile

14.8¢

MPG

City driving (worst-case MPG)

$2,001/yr

Highway driving (best-case MPG)

$1,455/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today

Show:

Current

$4.00

5-year low

$2.78

5-year high

$5.01

Since 2021

+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2018 Infiniti QX30

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$2,143

Full coverage / month

$179

Liability only / year

$710

vs US avg

+28%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (sedan-luxury)1.28x

× theft risk1.00x

× safety rating1.00x

× vehicle age1.00x

= Full coverage estimate$2143

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Infiniti New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

4 yr / 60K mi

Powertrain

6 yr / 70K mi

Hybrid/EV battery

8 yr / 100K mi

Corrosion (rust perforation)

7 yr / unlimited mi

Roadside assistance

4 yr / unlimited mi

These are the terms for a new Infiniti. If you're buying a used 2018 QX30, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Infiniti dealer for VIN-specific remaining warranty.

Estimated Repair Costs

ELECTRICAL(~50K mi)

$500

OTHER(~50K mi)

$500

ENGINE(~50K mi)

$500

STEERING(~50K mi)

$500

AIR BAGS(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 42 owner complaints for this specific year, here's what to check or ask about:

☐
ELECTRICAL: 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 DEALER
Typically appears around 50K miles. Repair cost ~$500
☐
OTHER: WHEN I TURN MY CAR OFF THE RADIO IS STAYING ON AND IF I DON'T CRANK IT EVERY 6-8 HOURS THE BATTERY GOES COMPLETELY DEAD AND I HAVE TO RECHARGE IT
Typically appears around 50K miles. Repair cost ~$500
☐
ENGINE: A variety of dashboard lights illuminated including engine light, ABS, emergency brake failure message etc. Vehicle drove as if power steering had failed. When I brought the car in to the Dealer I was told that the vehicle displayed codes for two concerns: 1) air quality sensor and 2) all 4 wheel sp
Typically appears around 50K miles. Repair cost ~$500
☐
STEERING: TL* THE CONTACT OWNS A 2018 INFINITI QX30. THE CONTACT STATED THAT AT START-UP, THE CONTACT HEARD AN ABNORMAL POPPING SOUND WHILE TURNING THE STEERING WHEEL. THE CONTACT STATED THAT THE AIR BAG WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. ADDITIONALLY, SEVERAL FEATURES ON THE STEERING WHEEL FA
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 3 recalls have been completed — free at any Infiniti dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Infiniti QX30 — Year Comparison

How does 2018 compare to other years? Fewer complaints = more reliable.

Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints: 42
Recalls: 3
Fire reports: 0
Crash reports: 0
Injury reports: 0
Segment avg: 49

Check a Specific VIN

See recalls for YOUR 2018 Infiniti QX30

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