Is the 2021 Infiniti QX80 reliable?

The 2021 Infiniti QX80 has 9 complaints filed with NHTSA (0.5x the segment average). Our reliability verdict: excellent. Most common issue: ENGINE problems.

What are common problems with the 2021 Infiniti QX80?

Top problems: ENGINE (2 complaints, avg repair $500); SPEED CONTROL (2 complaints, avg repair $500); LIGHTING (1 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2021 Infiniti QX80?

Yes, there are 2 recall(s): FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP:CONTROL/DRIVE MODULE, BACK OVER PREVENTION:DISPLAY FUNCTION. Contact any Infiniti dealer to verify if recalls have been completed on your specific vehicle.

How much does it cost to fuel a 2021 Infiniti QX80?

The 2021 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 2021 Infiniti QX80?

Estimated US average full-coverage insurance for the 2021 Infiniti QX80 is approximately $2,325/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.

2021 Infiniti QX80

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2021 Infiniti QX80 has 9 owner complaints filed with NHTSA — that's 0.5x the segment average of 18. The most common issue is engine problems (22% of all complaints), specifically: this is a 2021 vehicle, and beginning in april of 2022, i have been telling my dealer that there is something wrong, but they haven't been able to fix it. when i am driving, there are times when the car will fail to accelerate. also at times it feels like i have been rear ended and the car lurches. There are 2 recalls issued for this model year.

Total Complaints

Recalls Issued

4/5

Safety Stars

0.5x

vs Segment Avg

Known Problems(top 5 of 7)

ENGINE

2 complaints

22%

• This is a 2021 Vehicle, and beginning in April of 2022, I have been telling my dealer that there is something wrong, but they haven't been able to fix it. When I am driving, there are times when the car will fail to accelerate. Also at times it feels like I have been rear ended and the car lurches
• I have been saying that my vehicle is a safety hazard since April 2022. I have had it to the dealer 4x since then in addition to opening up several cases with Inifiniti Customer Service, but nobody has been able to protect my family and I and remedy the situation. At times the vehicle will not acc

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

“This is a 2021 Vehicle, and beginning in April of 2022, I have been telling my dealer that there is something wrong, but they haven't been able to fix it. When I am driving, there are times when the car will fail to accelerate. Also at times it feels like I have been rear ended and the car lurches”

— NHTSA complaint filing

Recalls (2)

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP:CONTROL/DRIVE MODULE20/05/2021

Nissan North America, Inc. (Nissan) is recalling certain 2020-2021 Nissan Armada and 2020-2021 INFINITI QX80 vehicles equipped with V8 engines. The impeller can swell and bind within the fuel pump module, causing it to fail.

Risk: Fuel pump failure can cause an engine stall, increasing the risk of a crash.

Fix: Dealers will replace the fuel pump module, free of charge. Owner notification letters were mailed February 4, 2022. Owners may contact Nissan customer service at 1-800-867-7669. Nissan's number for this recall is R21A2. Owners may contact INFINITI customer service at 1-800-662-6200. INFINITI's number for this recall is R21A3.

Fuel Cost Calculator for 2021 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 2021 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

$2,325

Full coverage / month

$194

Liability only / year

$717

vs US avg

+39%

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 rating0.98x

× vehicle age1.05x

= Full coverage estimate$2325

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 2021 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

ENGINE(~50K mi)

$500

SPEED CONTROL(~50K mi)

$500

LIGHTING(~50K mi)

$500

OTHER(~50K mi)

$500

VISIBILITY(~50K mi)

$500

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

🔍 Pre-Purchase Inspection Checklist

Based on 9 owner complaints for this specific year, here's what to check or ask about:

☐
ENGINE: This is a 2021 Vehicle, and beginning in April of 2022, I have been telling my dealer that there is something wrong, but they haven't been able to fix it. When I am driving, there are times when the car will fail to accelerate. Also at times it feels like I have been rear ended and the car lurches
Typically appears around 50K miles. Repair cost ~$500
☐
SPEED CONTROL: This is a 2021 Vehicle, and beginning in April of 2022, I have been telling my dealer that there is something wrong, but they haven't been able to fix it. When I am driving, there are times when the car will fail to accelerate. Also at times it feels like I have been rear ended and the car lurches
Typically appears around 50K miles. Repair cost ~$500
☐
LIGHTING: 2021 INFINITI QX80. CONSUMER WRITES IN REGARD TO REAR TURN SIGNALS BEING TO LOW ON VEHICLE CAUSING SAFETY CONCERNS.
Typically appears around 50K miles. Repair cost ~$500
☐
OTHER: The paint is peeling on my 2021 qx80 on the rear bumper and the grill is bubbling. Infiniti refused to cover it because we are out of the warranty. Might I ad only by a couple hundred miles.
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 2 recalls have been completed — free at any Infiniti dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)