2024 Lexus Gx

On XXX I brought the vehicle to Tri-County and advised them that the vehicle was shifting roughly when coming to a complete stop or when slowing down to take a turn and beginning to accelerate. The dealership acknowledged the issue and advised that they were waiting for a software update. On XXX, I brought the vehicle to Tri-County Lexus about rough transmission jerking and rough idling shake while the vehicle idles. Lexus performed a software update which was performed under TSB L-SB-0042-25; however, they stated that they could not recreate the rough shake at idle. On XXX I returned to the dealer with video proof of the vehicle shaking roughly while at idle, at which time they proceeded to perform a software update acknowledging the issue. On XXX I also advised the dealer that the transmission issue had still been there and they advised they couldn’t recreate the issue. Approximately a month later the issue of rough shake at idle remained as well as the transmission being clunky. I then got in contact with Lexus corporate where they advised me to return with the vehicle to Lexus of [XXX] where the technician acknowledged that they were able to recreate the issue about 10% of the time and deemed it normal due to the size ratio of the vehicle and deemed the rough shake at idle normal for the vehicle. The technician has acknowledged that the transmission issue is there despite a transmission update being completed and ruled the rough shake norma..I returned on XXX to the service center for 5 days where the service was completed. On XXX the rough idle shake returned and it was videoed and time stamped with proof. I proceeded to return the vehicle on XXX and took a test drive with the technician where he acknowledged the shake at idle but could not replicate the hard shift with the rough shift with transmisson while slowing down to and reaccelerating, INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On April 17, 2025, while driving a 2024 Lexus GX 550 Luxury Plus with a minor passenger in the vehicle, the vehicle locked up without warning as I was exiting the highway. The sudden lockup caused skid marks on the tires. The failure occurred at low speed only because I had just turned off the highway — had it occurred moments earlier at highway speed, the consequences could have been fatal. The failed component appears to be the drivetrain or braking/locking system. The vehicle is currently in the possession of the Lexus dealership and is available for inspection. A Lexus field inspector has been scheduled for early May 2025. Safety was put at serious risk. A child was in the vehicle. The lockup was sudden and without warning, with no ability to anticipate or respond. This incident was preceded by two prior issues with the same vehicle: (1) approximately one month prior, a transmission concern was reported to the dealer, who attributed it to abnormal driving habits and took no corrective action; (2) on April 7, 2025, brake rotors were replaced under a recall for rotors that squeak when exposed to moisture. The problem has been confirmed by the dealership, which has retained the vehicle since April 17, 2025. I am aware of at least 8 to 10 other reported incidents involving the same model vehicle with the same lockup failure. No warning lamps or messages appeared prior to the failure.

The contact owns a 2024 Lexus GX 550. The contact stated that while operating the vehicle, the instrument cluster momentarily turned black. The vehicle was taken to the local dealer, where the failure could not be duplicated, and no service was performed. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 8,000.

I have a 2024 Lexus GX 550 Overtrail with about 4,500 miles on it bought in December 2024. I went to start it this afternoon and I got a message saying "Low Steering Power". All the electrical things on the car seemed to be working: lights, dash lit up, courtesy lights, all the screens, etc. It just wouldn't turn over. I shut the car off and gave it a minute or two then tried again. Nothing. At the same time, the car started to make a low, continuous humming sound and made a couple of clicking noises about every 10 seconds. It sounded like the hum of a refrigerator and seemed to be coming from the front half of the car. The car was totally turned off at this time. I then called Lexus Roadside assistance (the car was in my garage; hadn't used it in about 48 or so hours). When the flatbed driver arrived he tried to start it a few times. When he did this the car began to smoke from the fuse box. A significant amount of acrid smoke and severe odor of burning plastic developed. The flatbed driver and I immediately pushed the car out of the garage for fear of a fire starting and engulfing more than just the car. The fuse box and some of the fuses in it were melting. No flames developed but I'm quite certain that was a possibility. This just happened today. The dealer said they are going to begin investigating the issue. I'm very concerned that if others have this problem it could develop into something more serious. From what I've discovered from an internet search is that the combination of the "Low Steering Power" error message and the smoking fuse box condition "indicates a likely electrical short or significant component failure that could lead to a fire." I've uploaded a pic of the partially melted fuse box. I have no paperwork from the dealer service department as yet.

I was just getting off from work starting the engine, the driving meters screen and the head up display were completely off black, I thought that it will turn on after driving but it didn’t. I was driving more than 5 minutes on the free way and both screens were still dark. This is not the first time that this happened. The last time when this was happened, I brought my vehicle to the dealership where I purchased it, but then everything went back normal when I got to the dealership parking lot. They never performed any diagnostic or checking anything. Also the navigation/multi media scene flashing quite a bit. This car electrical system didn’t function properly and correctly when driving and could cause serious accidents or deaths, depending on who was driving. I really don’t know what more failure after this. In the past, Lexus had history of vehicle brake failures and couldn’t stop that claimed someone lives. This issues should be addressed before something else happens. ( I also have video available to support this concern)