What 17 owners told NHTSA about the 2021 Lexus Nx300

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 ODI 11730281

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 ODI 11650192

While driving our Lexus on 8/13/2023 on the interstate under normal driving conditions ALL of our warning lights came on one after another. We also lost air conditioning and power brakes it seemed. We immediately exited and pulled over. Opened the hood and the engine caught fire and fully engulfed the engine compartment. From the time of the first warning light to the vehicle being engulfed was probably 5 - 7 minutes. The vehicle was deemed a total loss. We filed a product liability claim with Lexus/Toyota and they investigated the vehicle on or around 8/28/2023 and were not able to determine a cause of the fire. Because they could not determine a cause our claim was denied. Our car was perfectly maintained and only had 15,000 miles on it at the time of the fire. We bought this vehicle new almost two years to the day of the fire and believe the fire was caused by a defective part. We understand it is very difficult to determine the cause of an automobile engine fire. Other comments below: We do not know where the vehicle is now as there was an insurance claim and the insurance company only held it for 30 days. Our safety and the safety of others was at risk luckily no one was injured. Problem has not been reproduced or reviewed by an independent service center. Vehicle was inspected. All electrical warning lights came on

NHTSA ODI 11553141