2023 Toyota Sequoia Hybrid

I would like to create a complaint because my 2023 Toyota Sequoia is not included in the NHTSA recall #25V767 for the V35A 3.4L i Force Max twin turbo V6 hybrid. My Sequoia was manufactured on the same production line as engines that have been recalled for engine debris in the Tundra trucks and Sequoia's. Toyota's reasoning for not including my hybrid vehicle is it's not a safety concern as the hybrid electric motor will provide power if the V35A gasoline portion of the engine should fail. Owners of the Tundra and Sequoia have stated that with loss of engine power some control system fail creating a safety issue. I use this vehicle for towing our boat to and from the lake frequently. I travel long distances with family and stranded along the highway could be catastrophic. This is an issue that Toyota is obviously aware of since they recalled the V35A engines because of failure.

This is related to Toyota service bulletins T-SB-0043-24 and T-SB-0022-25. My brakes started squealing shortly after I purchased the vehicle. I reported this to my toyota dealership. They told me about the service bulletins, but said the parts are on back order. I have been waiting for almost 2 years, and the dealership still hasn’t fixed it. Now, my brakes are vibrating violently at highway speed, and my family is scared to ride in the vehicle.

please refer to NHTSA issue 11624149. Toyota has dismissed my complaints about the trailer brake controller and has (twice now) closed the complaint I have filed with them regarding the issue I am having with the trailer brake controller. Even though I have been able to reproduce the CPU programming issue with the trailer brake controller with a Toyota Service Technician, Toyota corporate has decided to not move forward with any remedies and has dismissed my concerns. The improper programing on the trailer brake controller in this vehicle is a serious safety issue that should be recalled before an accident occurs and someone is killed.

The ECU in my Sequoia is incorrectly programmed when towing a trailer. I have a 6,000# dual axle electric brake travel trailer that I use my Sequoia to tow with. I set up the trailer specifications in the vehicle computer per the Toyota owner's manual and set the trailer gain per the Toyota owner's manual. The problem I experience is when the gain is set this way the trailer brakes lock-up under moderate braking. To remedy the trailer brakes locking up, I reduce the gain. The problem is, in order to stop the trailer brakes from locking up under moderate to heavy braking, I have to reduce the gain to the point the trailer brakes are effectively not operating. I have already brought the vehicle and trailer to a Toyota dealership, and they were able to reproduce the issue I am experiencing with the brakes. However, Toyota has closed my case with no remedy. I never experienced this issue with the previous vehicle (a 2015 Toyota Tundra) I used to tow this same travel trailer with. I believe the ECU is incorrectly programmed causing a different voltage output being provided to the trailer when 1) the brake pedal is depressed; vs. 2) when the trailer brake controller slider is operated (to set trailer gain).