2021 Infiniti QX80 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
7 owner complaints analyzed
3 distinct recall campaigns
62,000 mi median reported failure mileage
Scope: 2021 model year. Data snapshot: . 1 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Engine is the most frequently named component, appearing in 2 of 7 complaints (28.6%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Engine operation | 2 | 28.6% |
| Fuel system concerns | 2 | 28.6% |
| Transmission and shifting | 1 | 14.3% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine | 2 |
| Fuel/Propulsion System | 2 |
| Vehicle Speed Control | 2 |
| Exterior Lighting:Turn Signal | 1 |
| Power Train | 1 |
| Unknown Or Other | 1 |
| Visibility:Sun/Moon Roof Assembly | 1 |
Engine: 2; Fuel/Propulsion System: 2; Vehicle Speed Control: 2; Exterior Lighting:Turn Signal: 1; Power Train: 1; Unknown Or Other: 1; Visibility:Sun/Moon Roof Assembly: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 1; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
50,000 to 74,999 miles has the most reports with usable mileage (1). 6 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2023 | 3 |
| 2024 | 1 |
| 2026 | 3 |
2023: 3; 2024: 1; 2026: 3
Pattern summary
Engine leads the component reports. Engine operation appears in 2 complaint narratives. Fuel system concerns appears in 2 complaint narratives. Transmission and shifting appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11575429 · 2024-03-04 (March 4, 2024)
What component or system failed or malfunctioned, and is it available for inspection upon request? Fuel Rail/ System Pressure too low How was your safety or the safety of others put at risk? Car engine could stall and increasing the risk of a crash Has the problem been reproduced or confirmed by a dealer or independent service center? active recall R21A3 reported May 19,2021, yes got checked at Firestone auto care also this NHTSA Campaign ID 21V373000 Has the vehicle or component been inspected by the manufacturer, police, insurance repr…
Owner-reported narrative. Look up ODI 11575429 at NHTSA ↗
Owner report 11750272 · 2026-07-14 (July 14, 2026)
The vehicle loses power due to failure of fuel pump, this causes the vehicle to stall out whilst driving. exactly as described in [XXX] this is a known issue with 2021 Infiniti QX80 and Infiniti tells me there is no open recal for our vehicle. This is unsafe and dangerous. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Owner-reported narrative. Look up ODI 11750272 at NHTSA ↗
Owner report 11711375 · 2026-01-16 (January 16, 2026)
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 accelerate even when I push the gas all the way down. Then it will kick in and surge forward. I also have told them that at times it feels as if someone has rear ended me. There is a recall out there for cars manufactured through April 2020, but mine…
Owner-reported narrative. Look up ODI 11711375 at NHTSA ↗