2026 INFINITI QX80

This 2026 QX80 has experienced repeated ADAS/driver-assistance malfunctions while being driven. The cluster displays "Warning - Malfunction - See Owner's Manual" with multiple driver-assistance indicators. The malfunction is also associated with abnormal Start/Stop-system operation and abnormal or lost A/C operation. I have repeatedly presented the vehicle to an authorized Infiniti dealer; the malfunction has continued. Documented by July 16, 2026, at approximately 3,451 miles. On July 21, 2026, the dealer advised in writing that an ADAS control module was causing the Start/Stop system not to engage, that the part was backordered, with no release date. After the vehicle was returned, it malfunctioned three times in one day on August 11 (A/C affected each time), and recurred August 27 and September 1. A dealer repair order at approximately 3,916 miles documents "MALFUNCTION WARNING LIGHT" and the Start/Stop complaint. I am concerned this may be a broader safety defect because I have seen the same or similar warning/malfunction in multiple separate QX80 loaners supplied by the dealer while mine was being repaired, including loaners with as few as approximately 3 and 35 miles on them when received. Every loaner I have been given, without exception, has shown this defect, including one that displayed the warning at approximately 71 mph. Most recently, on November 6, 2026, the malfunction recurred again while driving at approximately 57 mph, at approximately 8,203 miles. I cannot determine on my own whether all these vehicles share the identical underlying failure without access to diagnostic trouble codes. I am reporting this pattern so NHTSA can determine whether it indicates a broader safety-related defect in the QX80. This has occurred during normal driving, including highway speed, and has required pulling off the roadway to shut down and restart the vehicle.

NHTSA ID

11776333

Incident

Nov 6, 2026

As captured in images uploaded herein, the subject Infinit QX80's advanced safety system suite malfunctioned completely and without warning at 948 miles. The vehicle dash captures the numerous systems that simultaneously fail including: collision avoidance, steering assistance, lane assistance, blind spot monitoring - and all systems that rely on the advanced camera suite. Importantly, the first failure happened at highway speed without warning and resulted in the steering assist failing on a banked curve and directly placed a family of six within inches of a high-speed collision with an 18-wheeler. This same, intermittent recuring malfunction has happened TEN additonal times including and after SEVEN authorized dealership repair attempts. The dealer has replaced cameras, the entire dash, rebooted the entire software system, and then undertook a "hail mary" to hard reset the car by unhooking the battery and rebooting the vehicles operating system. The vehicle continues to malfunction. The dealership cannot replicate the code because the car does not recognize that there has been an error. The failure to store the failure codes means the dash resets every time the car is shut off and restarted. That makes diagnosis nearly impossible and the dealer just keeps replacing random parts hoping to luck out and fix the underlying electrical, software, wiring, or camera issue. Nissan has refused to acknowledge this serious safety issue and will not repurchase the vehicle. We have four daughters under 12 years old and are forced to keep driving this unsafe car until someone helps or something tragic happens. PLEASE HELP US! I can provide the repair orders from the dealership.

NHTSA ID

11774248

Incident

Feb 13, 2026

I am still having the same issues as the last time I reported this but new issues have occurred as well. The self driving is still disengaging with little or no warning and pulling the vehicle sharply to the left or right causing safety concerns with almost hitting another car or the center median wall on the highway. The stereo is still going black and turning the screen off. When you attempt to remedy, the buttons and screen are all frozen. When I power it off the AC goes off. The other issue is the crash warning is popping up when I'm trying to take off from a stop light, causing the wipers to start and the AC to turn off. One instant the braking applied like I was about to hit something but no cars were in front of me at the light. The car also turned on like it was in auxiliary mode after I got out and walked around to the passenger door to get my child out. These are causing lots of stress and numerous trips to the dealership to attempt to remedy. My vehicle has been at the dealership since Sept 29, 2026 making this the 3rd time and over a month total of not having access to it.

NHTSA ID

11770064

Incident

Sep 23, 2026

Malfunction: see owners manual with forward collision icon popped up. Only went away when we turned the vehicle off. Tried wiping off sensors to see if it was a sensor issue. Continued to happen. When we arrived back to [XXX] I was driving on XXX. Error message came on with a loud beep, vehicle shut off on me while I was driving (screens went black, a/c cut off, idle message flashed across screen and the vehicle stalled out. Engine came back on by itself. I was driving in my neighborhood leaving my home address. Took it to the Infiniti dealership. They couldn’t replicate it and could see the codes thrown. XXX picking my kids up from school sitting at a stop light and the vehicle beeped again when the light turned green and I started to go, idle message flashed, all screens black, a/c cut off, malfunction message came on, engine turned itself back on when the vehicle turned back on. Was told ADAS was reconfigured + software update and sent off again. XXX in the middle of an intersection loud beep, idle message, all screens black, AC cut off, malfunction message on screen again when the vehicle turned itself on again by itself. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11764724

Incident

Aug 9, 2026

The contact owns a 2026 Infiniti QX80. The contact stated that after refueling the vehicle, there was an abnormally strong fuel and rotten egg odor inside the vehicle. The vehicle was taken to the dealer, but no cause for the failure was found. The failure persisted, causing the contact and her husband to become nauseous. The contact stated that they were going to seek medical attention later. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 900.

NHTSA ID

11758008

Incident

Jul 16, 2026

Mileage

900 mi

On numerous occasions the pro pilot feature has malfunctioned and aggressively jerked the vehicle to the left causing us to almost hit the concrete wall divider. The cruise control turns off and on numerous times when trying to change lanes. It drives dangerously close to semis when passing on the left, almost crossing into the right lane. I've taken the vehicle to the infiniti dealership and they tell me they can't duplicate it but don't do anything about it. I had my husband drive it as well and it does the same thing to him.

NHTSA ID

11757125

Incident

Jul 24, 2026

many times when I am using pro pilot assist it does not brake to point when it is inches of crashing into car in front, I manually have to apply brakes. in addition while being in full automatic mode (hands free mode) it turns off lane keeping assist completely where if the driver was not Able to make split second decisions it would collide with vehicle near it. there is no warning for pro pilot assist mode to be driven below or above a certain speed, Infiniti dealer advised it should not be used for bumper to bumper traffic or within city. but when even using it on highway it sticks to one side of lane and still requires hands on all times but Infiniti advertises it to drivers it is a "safe hand free option" with no warnings. just a awful accident awaiting to happen.

NHTSA ID

11743998

Incident

Jun 2, 2026

I am submitting a safety complaint regarding the driver assistance system (ProPILOT Assist) in my 2024 Infiniti QX80. The behavior of this system creates a potentially dangerous driving condition. When ProPILOT Assist is engaged, the vehicle consistently delays braking until the last possible moment, then applies sudden and aggressive braking rather than smooth deceleration. This creates a high risk of rear-end collisions, especially in moderate to heavy traffic where gradual speed adjustments are expected. In addition, the lane-keeping function appears unstable. The vehicle tends to drift or “hug” one side of the lane instead of maintaining a centered position. At highway speeds, the system makes abrupt and overly aggressive steering corrections, even when the vehicle is already within lane boundaries and at a safe following distance. These sudden inputs feel unnatural and reduce driver confidence, requiring constant manual correction. Overall, the system behavior is unpredictable and does not align with reasonable expectations for a driver assistance feature. Instead of enhancing safety, it introduces unnecessary risk by combining delayed braking with aggressive steering inputs. This issue occurs under normal driving conditions on clearly marked roads and does not appear to be an isolated event. Given the size and weight of the QX80, these system responses could lead to serious accidents if not addressed. I request that this issue be investigated, as it presents a significant safety concern for drivers and others on the road.

NHTSA ID

11734204

Incident

Apr 18, 2026

UNKNOWN OR FORGOTTEN PIN NOT ALLOWING ACCESS TO THE AUDIO VIDEO UNIT SERVICE INFORMATION If an Audio Video (A/V) unit is not accessible to use all the features due to an unknown or forgotten PIN set in the A/V unit, a Remote Data Wipe (RDW) can be performed to reset the A/V unit back to factory default which is outlined in the SERVICE PROCEDURE starting on page 3. HINT: Guest User Profile can still be accessed with a PIN set, but all the features cannot be accessed in the Guest User Profile.

WIRING HARNESS REPAIR INFORMATION This bulletin is no longer active. For future reference, see the HRK mobile app and the Electronic Parts Catalog (EPC). Please discard previous versions of ITB14-020.

WI-FI HOTSPOT DOES NOT TRANSMIT DATA WITH DEVICE CONNECTED IF YOU CONFIRM Figure 1 ACTION 1. On 2025 QX80, confirm the client currently has a valid AT&T account. 2. On all models except 2025 QX80, confirm the client is currently enrolled in Infiniti InTouch® and is currently logged into infotainment user profile. 3. Confirm the current TCU software version number. 4. Replace the TCU, if required. 5. Using the infotainment downloader tool, confirm the current infotainment software version number. 6. Update the infotainment software, if required. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair. The Wi-Fi Hotspot does not transmit data when a device is connected. HINT: Figure 1 is a screen shot of a cell phone connected to a vehicle HotSpot. ACTION 1. On 2025 QX80, confirm the client currently has a valid AT&T account. 2. On all models except 2025 QX80, confirm the client is currently enrolled in Infiniti InTouch® and is currently logged into infotainment user profile. 3. Confirm the current TCU software version number. 4. Replace the TCU, if required. 5. Using the infotainment downloader tool, confirm the current infotainment software version number. 6. Update the infotainment software, if required. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.

IVI AUDIO DISPLAY SCREEN FLICKERING IF YOU CONFIRM The right side of the Display Unit (infotainment display) is flickering or glitching, AND No DTCs are stored in the Display ECU, AND All wiring harness connections are fully seated to the AV Control Unit and the Display Unit. ACTION Refer to the SERVICE PROCEDURE in this bulletin to replace the CABLE-LVDS (AV Control Unit to Display Unit LVDS Cable) starting on page 2. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.

FUEL FILLER TUBE LOWER SEAL IS LEAKING AND DTC P0456 IS STORED IN THE ECM This bulletin is no longer active. Please discard previous versions of ITB26-002.

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 = FMVSS (Federal Motor Vehicle Safety Standards) label. These items may be available from Infiniti by request if certain criteria are met. This bulletin lists the criteria and provides an application form for such replacements. · The “VIN Plate/Label” (metal plate or vinyl label) is attached to the instrument panel or body on the driver side at the base of the windshield (see Figure 1). · The “Certification Label” (vinyl adhesive label) is located on the lower area of the driver side B-Pillar (see Figure 1).