2023 Toyota Tundra Power Train

Recurring throttle lag. At a stoplight or stop sign at a full and complete stop I press down the accelerator and nothing happens for about a second and a half. When it finally does respond, it jumps as if it was struggling to get into gear.

My car got stuck in 4WD with 4L light blinking. I wasn't able to get out of the gear and the sensor had to be recalibrated just to fix this issue.

Throttle Lag: when stopped at a stop light/stop sign, there is significant delay from when the gas is depressed and the vehicle moves. This sometimes causes the vehicle to jolt forward and has almost caused accidents.

whenever driving my vehicle, there is noticible delay/lag when attempting to accelerate. This occurs primarily from when first starting from a compelte stop, but it also noticible in other scenarios. When stopped at a stop sign or traffic light, for example, first accelerating produces a lag and delay in movement of the vehicle. The dealership has "reflashed" the transmission which seemed to rmeedy this but only for a very short time. The same issue returned quite soon after. This lag does not produce any warning or error lights or messages. Many other users on vehicle-specific forums + internate groups have all reported sumilar behavior with no permanent solution to date.

When trying to accelerate from coming to a stop I almost always have throttle hesitation and or lag. This had cause me to almost get into a few crashes when trying to turn left due to the truck not responding for a few seconds.

Throttle lag. Sometimes when I press on the gas after a stop the truck lags to accelerate which is dangerous and can cause an accident.

intermitantly, there is a severe power lag when accelerating from stop. When stopped (stop sign or light), and I hit the accelerator, there is no immediate power, then the vehicle will "rocket" from the stop position. This is creating a very dangerous situation, as the lag sometimes puts me in position of pulling out in front of oncoming traffic, or spins the tires and I lose control. This situation happens about 30% of the time from stop. I have not taken it in for service yet, but from researching, this is a known problem throughout the Tundra community. There are no warnings prior to this happening.

The vehicle is a great vehicle. However, I have been noticing that my transmission fluid temperatures rise quickly, whether on the highway or when driving around town. I spoke to a Toyota dealership, and they told me that the proper operating temperatures for the transmission are between 167 degrees and 185 degrees. the temperatures on my transmissions have gotten past 200 degrees. I feel that it is a safety issue because if I am towing or driving long distances or in stop-and-go traffic over time, the transmission may cause a breakdown and then I will be stuck in the middle of traffic. It is a pretty big and heavy vehicle to push off the roadway, and way too expensive to allow someone to push me off of the roadway.

My 2023 Toyota Tundra motor just locked up exactly as the events discussed on the recall with the same model. Toyota stated that my truck was not affected yet here we are. Toyota opted to do a short block replacement instead of the long block as they did with the other trucks. I am concerned that I will have similar failure down the line due to residual metal in the turbo lines and or turbos that will cause turbo and or possible engine filatures later down the line. This is a safety issue because it can result in me being stranded if failure occurs aware from home. This needs to be addressed. Also my truck lurges and the gas pedal does not always respond. A serious investigation needs to be launched against Toyota, these issues can result in many Americans dying if left un checked!!

The engine began to misfire and stumble while idling. There was smoke present from the tail pipe when you would take off from the stop light. After Toyota ran an oil consumption campaign they came to the conclusion that the valve guides were bad and they need to replace both heads on the vehicle. It took 3 week for the repairs to be completed.

At certain times when starting (pressing the accelerator pedal) from a total stop, or from when rolling very slowly, the tuck creeps forward but there is up to a two second delay in start of increase of engine revs and power being delivered. This is quite scary when pulling out into traffic. When the power comes on it tends to surge with rapid acceleration for a very short time. To be clear, no accident has occurred and there are no warning lights on the dash. However, I feel that this vehicle behavior creates a significant hazard worth highlighting. Once the vehicle starts moving, it goes back to normal operation within seconds. It’s not a consistent issue - it does not happen very frequently - but I’ve had it since the truck was new and it has 27k miles on it now. I have made several complaints to the maker and my dealer at every service, but they fail to replicate / recognize this issue after a number of tests drives. I went on a test drive with one dealer tech and when we replicated this issue I was told that ‘all trucks are like this’. There is a technical service bulletin fix for this, but the maker has refused to do it on my truck and others have reported that it did not resolve the issue on their trucks. From online forums, this seems to be a common issue on non-hybrid models. The truck transmission also tends to thud into drive when cold and the chances of the hesitation / surge issue occurring is higher just after a cold start (‘cold start’ being a relative term in South Texas). It most often occurs at the nearest stop sign just after I leave home, but does occur randomly at other times.

I’ve submitted this before the huge recall that Toyota just announced but my truck lands a few months after the dates of this recall. I have the same symptoms and have video evidence of my truck shutting off on the highway.

Truck sporadically will not accelerate from stop without significant lag when gas pedal is pressed. Happens infrequently, but typically occurs after truck is started.

Even after the recall / tcm reprogram, this truck will especially when cold and rolling away from a stop after deceleration stall / stutter for a few seconds before it starts accelerating again.

The transmission kicks hard at any speeds, i used the 4wd and the truck turned off and once i started it again it was a transmission burned fluid smell i only have 16k miles, this happened before when the truck had 1400 miles and the dealership said they cleared the codes and that it was ok…

I was traveling south on [XXX] in Sarasota, FL, around 70-75 miles per hour and the engine shut down with warning. I coasted to a stop and was able to pull in the left emergency lane out of traffic. This could have been a tragic situation because cars were traveling 70 plus mph in that area. I tried to restart the car but all I got was a clicking sound from the starter, I also smelled a faint burning smell form the engine compartment. I had to have the vehicle towed into a local Toyota dealership and was advised several days later that the engine would have to be replaced as metal shavings were found inside of it. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Vehicle started making loud clunking sounds at around 500 miles in rear of vehicle while moving at low speeds. Gradually became louder. Dealership claimed bad rotors on rear wheels causing this, turned rotors then eventually replaced. Found that driveshaft was "bad". Attempted to replace, and discovered rear differential damaged beyond repair. Vehicle has approximately 1100 miles on it total.

Greetings all, This is not my vehicle. It is the vehicle that came to a sudden stop on the [XXX] and I hit. The driver apologized and told me his wife was fiddling with the drive shift lever and accidentally pressed the Park button. Indeed, the 2023 Toyota Tundra driver had been stepping on the brakes (lights on the outside of the flip gate) and switching to reverse (small white lights towards the middle of the bumper) the times I found myself behind it (I had managed to move to the right lane to avoid it a few miles earlier). How does an automatic transmission switch from Drive to Reverse and Park while the vehicle is moving (yes, by then we were going slowly because the driver kept stepping on the brake)? This model does not have mechanical interlocks in the shift lever. It counts on electronic controls. Could it be a burned element in a circuit board? Could it be a defective control card? or a design/programming flaw? Could it have the same parking brake problem that resulted in the recent recall of 870 thousand 2021-2023 Ford F-150s? Could it be something else? Please consider requiring mechanical interlocks for shift levers. Electronics are too sensitive to temperature and humidity and controller failures may become more frequent. Thank you. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Truck has a frequent delay/ hesitation accelerating from a stop. Also has a situation where when accelerating from low speed (3-5 mph) the transmission feels as though it’s in a very high gear and is therefore sluggish. Both issues cause potential safety hazards in traffic. Truck also has harsh or jerky shifts in lower gears, (my best guess is gears 1-6 although it’s hard to tell because there is no gear display) which causes drive-ability problems. Local dealer told me my truck has the most up to date transmission programming therefore there is nothing they can do. Issues have been present since new.

Started Tundra pulled away from Garage concrete approach onto level stone driveway saw a large stone applied brake shifted into neutral vehicle stopped opened door released brake started to step out and Tundra began to move ahead stepped back and applied brake then put transmission into Park. On level driveway this truck will move forward in neutral.

Vehicle before 1200 miles had to have driveshaft, rear differential and transfer case replaced outright due to faulty parts from factory. Vehicle was cleared from lot multiple times with claims of "noisy" rear brakes despite consumer insistence vehicle had drivetrain issues. Vehicle ultimately received rebuild with factory OEM parts.

The contact owns a 2023 Toyota Tundra. The contact stated while driving out of the driveway, the contact shifted into neutral the vehicle started rolling forward. The contact was able to stop the vehicle. The dealer was contacted and stated that the vehicle needed to be diagnosed. The vehicle was not diagnosed. The manufacturer was contacted and stated that the vehicle needed to be diagnosed. The failure mileage was 1,600.