2021 Lexus NX

1. What component or system failed or malfunctioned, and is it available for inspection upon request? The high-pressure fuel pump and related fuel system sensor failed, resulting in a sudden loss of engine power. The failure was confirmed by diagnostic trouble codes retrieved by an independent mechanic. The vehicle is available for inspection upon request. 2. How was your safety or the safety of others put at risk? While driving at highway speeds, the vehicle suddenly lost power and became inoperable, leaving me unable to accelerate or maintain speed. This created a dangerous situation with surrounding traffic, including a truck traveling behind me, increasing the risk of a rear-end collision or crash. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. An independent mechanic retrieved diagnostic trouble codes indicating failure of the high-pressure fuel pump and related sensor. A dealership acknowledged the issue but was unable to reproduce the problem at the time of inspection because the codes had cleared. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The vehicle was inspected by an authorized dealership after being towed. No police or insurance inspections were conducted. 5. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? There were no significant warning signs prior to the sudden loss of power. The failure occurred unexpectedly while driving. Diagnostic codes were retrieved immediately after the incident but were no longer present during the dealership inspection.

NHTSA ID

11730281

Incident

Apr 1, 2026

My vehicle has slowed while driving four times within the last 12 months. I have taken it to the Hendrick Lexus dealership in Charlotte as well as the Scott Clark Toyota dealership in Charlotte. I was told by the Lexus dealership they could not find anything wrong (this was back in July 2025). The Toyota dealership stated (March 2026) that there may be a problem with the fuel pump, but they were unable to confirm this issue and after getting the vehicle back the same thing happened while driving. This has been concerning. It is very dangerous for us to drive the vehicle at this point. I see that there has been a safety recall introduced in the state of Georgia at a Smyrna Lexus dealership, but I have yet to see any other information. I would greatly appreciate an investigation. Thank you.

NHTSA ID

11730073

Incident

Mar 18, 2026

Vehicle began exhibiting multiple electrical safety issues around April 2025. EMF (electromagnetic field) levels were measured and found to be excessively high, causing physical discomfort and triggering health concerns for my disabled son and me. We both sought medical attention. Two independent mechanics inspected the vehicle and confirmed it showed signs of water intrusion or exposure to hazardous materials — including corrosion, damage to internal components, and abnormal underbody residue. I reported this to Lexus in April and also submitted a lemon claim, but they have failed to act or resolve the matter despite multiple follow-ups. Additional issues include malfunctioning GPS, flickering interior lighting, and system errors suggesting possible electrical instability. I no longer feel safe operating the vehicle due to the ongoing risks and lack of manufacturer response. This is a serious failure of duty to inform, inspect, or repair — and may indicate deeper electrical or structural defects that pose risk to others.

NHTSA ID

11678322

Incident

Apr 11, 2025

Coming down a steep, narrow, long driveway leading from a private home on a hill, and moving forward in low gear, I allege that the brakes failed. After 3-5 attempts at braking, we came off the cement driveway as we accelerated and slid off the side of the hill, turning over onto the driver's side of the car and coming to rest near a dropoff, held by the branches of an oak tree. Fire engines came, and the Jaws of Life were applied, basically demolishing the car (which did hold together as we slid along). The seat belts also did their job. The car was removed from the towing yard in Grover Beach, CA, to Fresno, CA, whereupon the car's computer was inspected by an engineer hired by Lexus. He reported no failures. Besides me, the driver, there were two other occupants. My sister has sustained whiplash, and her boyfriend is having some pain in his hip. I seem to be fine. The other occupants were held in place by the seat belts. I was held by my belt and was also resting against the side air bag on the driver's door. The passenger's front side air bag also deployed. There is no confirmation of a problem by the dealer or an independent service center, unless the engineer counts as independent. Other than the engineer, I don't know of any inspection of the vehicle. The Highway Patrol was on the scene but did not write a report as we were on private property. No warning lamps came on that I observed.

NHTSA ID

11653067

Incident

Mar 3, 2025

The contact owns a 2021 Lexus NX300. The contact stated that while driving at various speeds, the vehicle slowly lost automotive power and decelerated. The contact pulled over to the shoulder of the roadway and restarted the vehicle to continue driving normally. The contact stated that the check engine, traction control, and Service Soon warning lights remained illuminated. The vehicle was taken to a local dealer where the vehicle was diagnosed, and the contact was informed that the fuel pump was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 40,000.

NHTSA ID

11650192

Incident

Mar 24, 2023

Mileage

40,000 mi

The passenger airbag light is constantly on. When no one is sitting on the chair, the light states that the air bag is off and when someone is sitting in the chair, the airbag light states that it is on. I just purchased this used car a month ago from a Toyota dealership. Two weeks in with no accident whatsoever, the problem had occurred. I noticed the airbag light turned on when I first purchased the car but it would quickly turned off completely after a while.

NHTSA ID

11642887

Incident

Jan 17, 2025

The contact owns a 2021 Lexus NX300. The contact stated that while the vehicle was parked, his father heard the car alarm sounding off. The contact went to inspect the vehicle and saw that sunroof glass had shattered. The contact stated that he reviewed the home security footage and observed that the sunroof glass had not been impacted by an object for the sunroof glass to shatter. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 37,718.

NHTSA ID

11621943

Incident

Oct 24, 2024

Mileage

37,718 mi

The left-hand side outer rear-view mirror vibrates while driving causing safety hazard as it is difficult to clearly see cars behind, or potentially passing while the glass is shaking; yes it is risky; the Lexus dealer in Frederick CO has confirmed the problem. There is currently a warning for other years with the same problem; this is a 2021 NX 300

NHTSA ID

11619198

Incident

Sep 10, 2024

OBSOLETE NOTICE February 2, 2026: This bulletin is now obsolete. Please see L-SB-0004-26.

Some 2018 – 2025 model year Lexus vehicles equipped with the Enform™ 2.0 Navigation System, require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software.

Some 2005 – 2026 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedures for odor remediation. This Service Bulletin provides a guide on how to prepare and treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year Repair Manuals and the EPA (Environmental Protection Agency) website for the most up-to-date safety and precautionary guidelines. This Service Bulletin is to provide a general overview and direction for the odor remediation process.

Some customers may experience operational difficulties with some telematics features which they cannot resolve on their own. These resources, in conjunction with the Repair Manual, are for dealership personnel to assist those customers with user issues, user errors, and compatibility issues with other vehicle systems and external applications encountered while operating telematics features.

The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.

To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.