AI Damage2021 Infiniti QX80: common problems
Owners of the 2021 Infiniti QX80 filed 7 complaints with NHTSA, most often about engine and fuel/propulsion system. The maker issued 98 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 7
- Technical service bulletins (TSB)
- 98
What fails most often
- 1 Engine 29% of all complaints
- 2 Fuel/propulsion system 29% of all complaints
- 3 Vehicle speed control 29% of all complaints
- 4 Visibility 14% of all complaints
- 5 Exterior lighting 14% of all complaints
- 6 Powertrain 14% of all complaints
- Engine: 2 complaints (29% of all); manufacturer bulletins for this component: 1.
- Fuel/propulsion system: 2 complaints (29% of all).
- Vehicle speed control: 2 complaints (29% of all).
- Visibility: 1 complaints (14% of all); manufacturer bulletins for this component: 8.
- Exterior lighting: 1 complaints (14% of all); manufacturer bulletins for this component: 4.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 5.6 L · petrol · 8 cyl
- automatic, 7-speed
Drive: RWD, 4WD
Symptoms owners describe
How many of the 7 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 2 | 0 | 1 |
| Fuel/propulsion system | 2 | 0 | 0 |
| Vehicle speed control | 2 | 0 | 0 |
| Visibility | 1 | 0 | 8 |
| Exterior lighting | 1 | 0 | 4 |
| Powertrain | 1 | 0 | 4 |
| Electrical system | 0 | 0 | 59 |
| Equipment | 0 | 0 | 16 |
| Engine and cooling | 0 | 0 | 5 |
| Forward collision avoidance | 0 | 0 | 5 |
| Seat belts | 0 | 0 | 4 |
| Structure | 0 | 0 | 4 |
| Lane departure | 0 | 0 | 3 |
| Air bags | 0 | 0 | 2 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
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 [dealer] there is no open recal for our vehicle. This is unsafe and dangerous.
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 was manufactured in September 2020. Infiniti's recall is #R21A3 and the NHTSA ID is 21V373.
Also at times it feels like I have been rear ended and the car lurches. I have said this is a safety issue and neither the dealer nor Inifiniti Customer Consumer Affairs have taken this seriously and remedied the situation. They all say there is nothing they can do.
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…
The contact stated while driving at approximately 65 MPH, the sunroof inadvertently exploded without impact. The contact stated that the sunroof was not being utilized and was covered and closed. The vehicle was not diagnosed or repaired. The dealer nor the manufacturer were notified of the failure.
2021 infiniti qx80. Consumer writes in regard to rear turn signals being to low on vehicle causing safety concerns.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 1,591 of 2,102 model years in the NHTSA data (among the 24% least complained about).
On average one model year of the QX80 has 8 complaints (11 years in the data). This year has 7, about average.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Vehicle speed control. Accelerator pedal, cruise control, throttle codes.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other…
CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement “Certification Label” or “VIN Plate/Label” may be needed. HINT: Certification Label =…
- AEB WARNING LIGHT IS ON WITH WARNING MESSAGES DISPLAYED ON COMBINATION METER APPLIED VEHICLES
2015-2024 Q50 (V37) 2015-2018 Q50 Hybrid (HV37) 2017-2022 Q60 (CV37) 2015-2019 Q70 (Y51) 2015-2018 Q70 Hybrid (HY51) 2019-2024 QX50 (J55) 2022-2024 QX55 (FJ55) 2015-2021 QX60 (L50) 2022-2024 QX60 (L51) 2015-2019 QX60…
- SERVICE INFORMATION In the APPLIED VEHICLES, there are a variety of Seat Belt Warning Lights and Chimes
Refer to the information in this bulletin, along with the related vehicle owner’s manual. Figure 1 Infiniti Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are…
- DTC B00A0-00 STOREIF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored, AND OCS zero…
DTC B00A0-00 STOREIF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored, AND OCS zero point reset cannot be performed, (continued on the next page)D
- DTC B2E1B-06 (AUTOMATIC ECALL) STORED AS CURRENT IN THE IVC APPLIED VEHICLES
2020-2024 Q50 (V37) 2020-2022 Q60 (CV37) 2020-2024 QX80 (Z62) SERVICE INFORMATION The APPLIED VEHICLES that come equipped with a factory installed SOS switch, located near the overhead map lamp, also come equipped with…
- TELEMATICS CONTROL UNIT RESET AFTER AUTOMATIC COLLISION NOTIFICATION SERVICE INFORMATION The Telematics…
TELEMATICS CONTROL UNIT RESET AFTER AUTOMATIC COLLISION NOTIFICATION SERVICE INFORMATION The Telematics Control Unit (TCU) has the ability to send an automatic collision notification when the vehicle is involved in an…
- DTC B2E01-96 (INTERNAL BATTERY) STORED AS CURRENT IN IVC APPLIED SYSTEMS
Vehicles equipped with Telematics SERVICE INFORMATION CONSULT has been updated to allow DTC B2E01-96 for “Internal battery” to be cleared in the Telematics Control Unit (TCU). If DTC B2E01-96 is Current/Active in the…
- AV CONTROL UNIT REPLACEMENT PROCESS This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. IF YOU CONFIRM The AV control unit needs to be replaced. ACTION 1. Read and save the VIN. 2. Read and save the configuration…
- TELEMATICS (IVC) SERVICE INFORMATION Vehicles equipped with factory telematics system HINT
If the client experiences Wi-Fi hotspot related concerns only, DO NOT replace the TCU. Have the client contact the AT&T Support line at 1 (888) 719-7242. See ITB12-011 for models built before those listed above…
- DTC C1A17-49 STORED IN LASER/RADAR This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NHTSA lists 98 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2021 Infiniti QX80?
Owner complaints to NHTSA most often mention: engine, fuel/propulsion system, vehicle speed control. Total complaints: 7. The most frequent symptoms in complaint texts: fuel system, fuel smell (29%), stalls while driving (29%), jerking, harsh shifts (14%).
How many service bulletins (TSB) were issued for the 2021 Infiniti QX80?
NHTSA lists 98 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2021 Infiniti QX80 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2021 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.