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.

- Loves Park, IL, USA

Hesitation when trying to accelerate. When I come to a stop sign and hit the gas, there-??s always a hesitation

- State College, PA, USA

After braking or coming to a momentary stop, such as a stop sign, the tundra-??s throttle is delayed for 2-3 seconds. Full pedal to floor, no acceleration. Extremely scary when it occurs, results in pulling out into traffic and having to wait 2-3 seconds before accelerating. It seems to be the ECM hunting for gears after slowing, hesitating, then selecting 6th gear and bottoming out before downshifting to 2nd and nearly burning out as it finally accelerates away from rapidly approaching traffic. Often happens, or is noticed more frequently, when turning right from a stop sign. Please have Toyota fix this, they are not acknowledging there is an issue!

- Holly Ridge, NC, USA

Hesitation From Stop and Surge Concerns. this may cause traffic surge, collison in my front for having no control of the speed if I end up pressing the gas all the way which it cause a quick surge of speed, due to the hesitation when pressing the gas, this happened to my car for a lot of times now which I ignored it until I saw the help from the Toyota Tundra forum, that I can actually send a report to NHTSA.

- Anaheim, CA, USA

There is a lag in the accelerator. It happens 10 to 20% of the time. It is a one or two second lag on the gas pedal. Pretty critical when turning out into traffic. I have al most been hit twice due to car not accelerating properly. I have taken to the dealer twice. They have told me they could not recreate when driving

- Gaffney, SC, USA

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

- Anchorage, AK, USA

Vehicle suffers from power failure response intermittently when attempting to accelerate. Sometimes it feels as it-??s its sputtering before getting a sudden jolt of acceleration.

- Liberty, MO, USA

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.

- Mount Holly , NJ, USA

Consistently this vehicle experiences a hesitation to accelerate from a stop or rolling stop such as a stop sign or at a round about type intersection. When this occurs there may be up to a 2 second delay from when I press the accelerator to when the vehicle moves and once it does begin to move it will jump forward rapidly. I have had several near miss collisions upon entering round abouts when this occurs as well as at several stop sign intersections. This problem has existed from when the vehicle was at about 5,000 miles. I have reported this condition to the Toyota dealer on 2 occasions and they tell me Toyota does not recognize this is an issue and there is no fix.

- Eureka, MO, USA

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.

- Tomball, TX, USA

Excessive hesitation in acceleration from stop or slow start. No warnings displayed car has less than 18000 miles. The excessive hesitation poses a real danger when pulling into traffic or trying to avoid an accident. The truck can randomly take several seconds to respond to accelerator input. This issue halls been reported my many 2022 and later Tundra owner.

- Henderson, NV, USA

Vehicle hesitates when accelerating from a stop. Feels like the engine may stall and the vehicle will not respond to throttle inputs. Very unsafe as I may not be able to accelerate to avoid an accident.

- Manchester, MD, USA

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.

- Katy, TX, USA

When in start and stop traffic when the vehicle is at low speeds below 5 mile an hour. The transmission does not properly downshift. This causes a severe lag in acceleration when needed in traffic or in Intersections. This delay is a safety issue due to causing a lack of vehicle movement when needed. The vehicle will basically not accelerate for a couple seconds until it decides to downshift. This happens continuously at speeds below 5 mile an hour. If you don-??t stop completely and pause for a second or two, the transmission will not downshift properly. In traffic, you cannot do this.

- Beaver Falls, PA, USA

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.

- Henderson, NV, USA

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-??

- Tucson, AZ, USA

The contact owns a 2023 Toyota Tundra. The contact stated that there was a clicking sound coming from the engine compartment while in neutral. The contact stated that while idling and then attempting to accelerate, the vehicle hesitated. There were no warning lights illuminated. The contact was made aware of NHTSA Campaign Number: 24V381000 (Engine and Engine Cooling); however, the VIN was not included. The vehicle had not been taken to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.

- Tucson, AZ, USA

When pressing gas pedal from a stop position the car hesitates for a couple seconds and then goes all while the gas is pushed down

- Hattiesburg, MS, USA

On numerous occasions when I am at a stop sign leaving work and trying to accelerate onto the 4 line highway my vehicle acceleration has a delay in it causing me to not properly accelerate into traffic almost causing me to get hit on numerous occasions. I have complained about this situation to the dealer and was told once that it was normal for the delay and once that it is just a V6 engine so that is why the delay. I am sure that I am not the only person having this issue is a problem and will be the result of many accidents if not addressed.

- Raceland, LA, USA

Pulling into traffic from a stop or near stop (such as a stop sign or yield sign), the vehicle does not respond to the gas pedal. After significant lag / hesitation, the vehicle lurches forward. This has happened multiple times starting around September 2023, and the problem is worse when the engine is cold (cold mornings) although it happens at all times to some extent. It seems to have gotten worst and happens almost daily at this point. There have been several times that the lag / hesitation has left me sitting in the middle of an intersection and almost caused me to be hit by other vehicles. I have had the vehicle in to the dealer 5 times for this issue and have been told it-??s -??normal-?? or they cannot replicate it. On the 5th time, Toyota corporate sent a representative Anthony Merejo, who verified in email that he experienced the hesitation and was sending the data back to Toyota engineering to see if there was a fix. That was about 6 weeks ago and I haven-??t heard back.

- Sparta, NJ, USA