Is the 2018 Infiniti QX80 reliable?

The 2018 Infiniti QX80 has 11 complaints filed with NHTSA (0.6x the segment average). Our reliability verdict: excellent. Most common issue: ELECTRICAL problems.

What are common problems with the 2018 Infiniti QX80?

Top problems: ELECTRICAL (4 complaints, avg repair $500); AIR BAGS (2 complaints, avg repair $500); OTHER (2 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2018 Infiniti QX80?

Yes, there are 1 recall(s): BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. 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 QX80?

The 2018 Infiniti QX80 gets 16 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $3000. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2018 Infiniti QX80?

Estimated US average full-coverage insurance for the 2018 Infiniti QX80 is approximately $2,260/year (suv-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 QX80

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2018 Infiniti QX80 has 11 owner complaints filed with NHTSA — that's 0.6x the segment average of 18. The most common issue is electrical problems (36% of all complaints), specifically: 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 . There is 1 recall issued for this model year.

2 crash reports 2 injuries

Total Complaints

Recalls Issued

—/5

Safety Stars

0.6x

vs Segment Avg

Known Problems(top 5 of 6)

ELECTRICAL

4 complaints

36%

• 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
• 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 r
• Similar to other complaints, the instrument cluster lighting is beginning to go dim or completely out starting at the high end of the RPM gauge and the low end of the speedometer gauge. This is an issue during night time driving.

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

“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 ”

— NHTSA complaint filing

Recalls (1)

BACK OVER PREVENTION: SENSING SYSTEM: CAMERA12/09/2019

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. Additionally included are 2019 Nissan GT-R and Taxi and Infiniti QX50, QX60, Q70, Q70L vehicles. The back-up camera and display settings can be adjusted such that the rear view image is no longer visible and the system will retain that setting the next time the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."

Risk: The lack of an image in the back-up camera display increases the risk of a crash.

Fix: 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. Owners may contact Nissan customer service at 1-800-867-7669 or INFINITI customer service at 1-800-662-6200.

Fuel Cost Calculator for 2018 Infiniti QX80

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$3,001

Per month

$250

Per mile

25.0¢

MPG

City driving (worst-case MPG)

$3,429/yr

Highway driving (best-case MPG)

$2,401/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 QX80

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

$2,260

Full coverage / month

$188

Liability only / year

$732

vs US avg

+35%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (suv-luxury)1.35x

× theft risk1.00x

× safety rating1.00x

× vehicle age1.00x

= Full coverage estimate$2260

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 QX80, 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

AIR BAGS(~50K mi)

$500

OTHER(~50K mi)

$500

SEATS/RESTRAINTS(~50K mi)

$500

STEERING(~50K mi)

$500

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

🔍 Pre-Purchase Inspection Checklist

Based on 11 owner complaints for this specific year, here's what to check or ask about:

☐
ELECTRICAL: 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
Typically appears around 50K miles. Repair cost ~$500
☐
AIR BAGS: TL* THE CONTACT OWNS A 2018 INFINITI QX80. WHILE DRIVING APPROXIMATELY 38-40 MPH, THE DRIVER OF AN ONCOMING VEHICLE FAILED TO YIELD THE RIGHT OF WAY AND CRASHED INTO THE DRIVER'S SIDE DOOR AND DRIVER'S SIDE FRONT FENDER OF THE CONTACT'S VEHICLE. THE DRIVER'S FRONTAL AIR BAG DEPLOYED; HOWEVER, THE SI
Typically appears around 50K miles. Repair cost ~$500
☐
OTHER: 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
Typically appears around 50K miles. Repair cost ~$500
☐
SEATS/RESTRAINTS: TL* THE CONTACT OWNS A 2018 INFINITI QX80. WHILE DRIVING APPROXIMATELY 38-40 MPH, THE DRIVER OF AN ONCOMING VEHICLE FAILED TO YIELD THE RIGHT OF WAY AND CRASHED INTO THE DRIVER'S SIDE DOOR AND DRIVER'S SIDE FRONT FENDER OF THE CONTACT'S VEHICLE. THE DRIVER'S FRONTAL AIR BAG DEPLOYED; HOWEVER, THE SI
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 1 recall have been completed — free at any Infiniti dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)