2021 Infiniti QX80 Problems: 5 Known Issues
2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Infiniti QX80 has 5 documented known issues, with 2 rated critical. The most serious are Hydraulic Body Motion Control System Leak ($500-$3,000 repair) and Fuel Pump Impeller Swells and Binds Causing Engine Stall (Recall 21V373000) ($0-$0 repair). Across all issues with published estimates, repair costs range from $500 to $3,000. DIY maintenance guides at au7o.io.
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All 5 Known Issues
NHTSA Recalls4 recalls
EQUIPMENT:OTHER:LABELS
Nissan North America, Inc. (Nissan) is recalling certain 2020-2026 Nissan Armada, 2011-2013 Infiniti QX56, and 2014-2027 QX80 vehicles equipped with 22" wheels. The Gross Axle Weight Rating (GAWR) listed on the certification label is incorrect, which can allow the vehicle to be overloaded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."
BACK OVER PREVENTION
Nissan North America, Inc. (Nissan) is recalling certain 2024-2025 Rogue and 2025 INFINITI QX80 vehicles. A software error may cause the rearview camera to display a blank screen when the vehicle is in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
BACK OVER PREVENTION:SOFTWARE
Nissan North America, Inc. (Nissan) is recalling certain 2025 INFINITI QX80 vehicles equipped with an Around View Monitor (AVM). A software error may cause the rearview camera to freeze and display a blank screen when the vehicle is in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
BACK OVER PREVENTION:SOFTWARE
Nissan North America, Inc. (Nissan) is recalling certain 2025 Murano, 2025-2026 Armada, and Infiniti QX80 vehicles. A software error may occur in the In-Vehicle Infotainment (IVI) system at vehicle startup, resulting in the rearview camera image not displaying when the vehicle is shifted into reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
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Frequently Asked Questions
What are the most common Infiniti QX80 problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Infiniti QX80 has 5 documented issues. The most frequently reported are: Hydraulic Body Motion Control System Leak, Fuel Pump Impeller Swells and Binds Causing Engine Stall (Recall 21V373000), Certification Label Lists Incorrect Gross Axle Weight Rating (Recall 26V455000). Of these, 2 are rated critical and should be addressed promptly.
Is the Infiniti QX80 reliable?
The 2021 Infiniti QX80 has 5 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: Hydraulic Body Motion Control System Leak and Fuel Pump Impeller Swells and Binds Causing Engine Stall (Recall 21V373000). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Infiniti QX80 problems?
Repair costs for known Infiniti QX80 issues range from $0 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Hydraulic Body Motion Control System Leak, typically costs $500-$3,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2018-2026 Infiniti QX80 Hydraulic Body Motion Control System Leak?
The QX80 equipped with Hydraulic Body Motion Control (HBMC) develops fluid leaks from the hydraulic actuators and lines. The system uses high-pressure hydraulic fluid to control body roll, and seal degradation leads to leaks and reduced effectiveness. Repairs typically run $500-$3,000. Severity: high.
What is the 2020-2021 Infiniti QX80 Fuel Pump Impeller Swells and Binds Causing Engine Stall (Recall 21V373000)?
The impeller inside the fuel pump module can absorb fuel, swell, and bind against the pump housing. Once it binds the pump fails and fuel delivery stops, stalling the engine — potentially at speed and without warning. This is the same low-density impeller defect that ran through… Repairs typically run $0-$0. Severity: high.
What is the 2014-2026 Infiniti QX80 Certification Label Lists Incorrect Gross Axle Weight Rating (Recall 26V455000)?
On QX80 vehicles fitted with 22-inch wheels, the Gross Axle Weight Rating printed on the certification label is incorrect and higher than the true rating. An owner loading the vehicle to the posted number — a realistic scenario on a three-row SUV used for towing, hauling, or fami… Repairs typically run $0-$0. Severity: medium.
What is the 2014-2022 Infiniti QX80 Rear Self-Leveling Air Suspension Sag from Air Spring Leak, Height Sensor, or Compressor Failure?
QX80 vehicles with the rear self-leveling air suspension develop a persistent rear sag that makes the truck look permanently loaded, and the failure usually cascades in a predictable order. The rubber air springs crack and leak with age, typically after five to seven years. The c… Repairs typically run $690-$3,000. Severity: medium.
What is the 2018-2026 Infiniti QX80 Infotainment System Slow Response?
The QX80 infotainment system exhibits noticeable lag when navigating menus, inputting destinations, and switching between audio sources. The aging hardware platform cannot keep pace with modern connected car expectations for a luxury SUV. Repairs typically run $0-$500. Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.