Owner-reported complaints naming the driver-assistance system, filed with NHTSA
Data refreshed
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2024 Lexus RX submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 9 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
When in cruise, the car will merge itself into the next lane if you hold the turn signal partially. If you keep holding it or fully engage the turn signal (maybe you forgot to turn off you signal, or held it too long), the car will merge through the solid white line off the road into a ditch. This happened to me once, and I noticed it trying several other times.
On Feb. 10th 2026 I was driving north I405 (Los Angeles). The car suddenly applied emergency breaks in the middle of the freeway, while there was no car in front of me, at least for 100m. I was lucky that the car behind me didn't hit me. It could be a serious multi-car collision.
The rear backup camera does not work when put into reverse
I went to reverse the car. Suddenly, the car's automatic emergency breaking system engaged. This occurred on 2 separate occasions. The first time, was in a parking lot during a sunny day. There was definitely nothing behind me, not even a person, but the camera saw a leaf or something small, and engaged the automatic emergency brake. The second time, it was raining in the evening, the sky was dark. I went to reverse (to complete a u-turn in an empty lot). Suddenly the automatic emergency braking engaged. In both instances, if I was reversing (as part of a u-turn on a busy street, this would have been very dangerous. Please investigate this. It was very scary.
When I was parking my car 20 feet behind a car by the street , the car suddenly accelerated. I stepped hard on the brake and fortunately stopped the car about 3 feet from the car in the front. No crash happened
I was trying to park behind a car. Slowed down the car. Just about 20 feet behind the car, the car suddenly started to accelerate. The speed was super fast. I had to step on the brake some hard to stop the car. Fortunately the car stopped just in time. No crash happened.
The car comes with proactive driver assist. The system when activated will cause the car to unexpectedly turn the wheel and lunge usually left if the system suspects you are going off of track. It works even on unmarked 2 lane country roads. Very disconcerting and dangerous. My wife was then subsequently in a serious accident on a slippery and snowy night that totaled the car. We are not convinced that the proactive driver assist system was the cause of the accident but can't help but think it may have been a contributing factor to the accident. Her car swerved into the oncoming lane on a unmarked (snow covered) highway.
Automatic Emergency Braking 6 times on a new car has violently and suddenly engaged at low speeds. Twice in the middle of the street with no obstacles near by.
The contact owns a 2024 Lexus RX350H. The contact stated that while the vehicle was started, the Forward Collision Avoidance system and air bag warning lights illuminated. The vehicle was taken to a dealer for 17 days, where it was diagnosed that a software update was needed. The vehicle was not repaired. The manufacturer was made aware of the failure and the contact was informed that there was no fix for the failure. The failure mileage was 1,020.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
Data on this page last refreshed .