Engine And Engine Cooling Problems of Toyota Tundra - part 1

I have a 2023 I-force max hybrid and I’m concerned about the non hybrid model engine shares the same engine characteristics and parts use for the I-force max hybrid engine. I want to be on record if I have an engine failure due to debris in Toyota engine manufacturing process for my vehicle. Troy musgrove 4009 robin st bay st louis, ms 39520.

See all problems of the 2023 Toyota Tundra 🔎.

While driving today the engine check light turned on, and the engine turned off (stalled) while in the middle of the road with a good amount of traffic around me. I pulled off to the side of the road and gave the engine a minute. I turned the truck back on again, the engine sounded very rough turning on and rough while driving. After a minute or two of driving, the engine light turned on again, and the engine stopped (stalled) again while in the middle of the road. I stopped this time for two minutes or so and turned the engine on again. I then proceeded to try to make it home, which I accomplished, but the truck's engine sounded rough and with a chattering sound (engine knocking) even when idling. I have received a recall notice letter concerning " certain 2022-2024 model year Tundra vehicles engine may stall during driving. " I possess the letter with the NHTSA recall number and the Toyota recall number. In the letter, it mentions the condition for which it is being recalled. The conditions are as stated in the letter. "machining debris may not have been cleared from the engine when it was produced. In the involved vehicles, this can lead to engine knocking, engine rough running, engine no start, and/or a loss of drive power. A loss of drive power while driving can increase the risk of a crash. " my truck has experienced all of the disfunctions that are stated in the recall letter. I would like for Toyota to look into this and remedy this problem before it ends in a major fatal crash or any other unfortunate circumstance. Thank you!.

The vehicle has a recurring safety-related defect where there is a long, unpredictable pause (1–3 seconds) between pressing the accelerator from a stop and the truck actually accelerating. This hesitation occurs when pulling away from a stop sign, traffic light, or after braking to a stop in traffic, and is not normal throttle response or turbo lag. During this delay, the engine revs slightly but the truck does not move, creating a dangerous situation where the vehicle fails to respond when expected, especially in intersections or when merging. After the pause, the truck often surges forward abruptly, which can cause jerking and loss of control.

On December 23, 2025, while driving at highway speeds, I began to hear a loud knocking sound. The sounds increased and a "low oil pressure" warning appeared on the dash. I began to loose power and the knocking sounds increased. I was able to carefully get the truck off the highway and parked to be towed to a local dealership. The loss of power while on the highway put myself and my family at risk due to not being able to keep at speed with traffic, and the possibility of being stuck on the side of a highway if I was unable to make it to the next exit. The vehicle experienced the same symptoms prior to the engine seizing in July of 2025. At that time the vehicle was not included in a recall campaign, and a short block replacement, rather than a complete engine replacement, was completed by Toyota.

This is ridiculous if there’s debris in the engine of a risk for it and risk for the engine to go I want a new vehicle there’s 18k miles on this truck brand new shape and I will be putting my family in this. This is a risk I’m not willing to take. This needs to be bought back.

The hybrid version of the Toyota Tundra uses the same base v35a-derived engine architecture, block casting, bearing design, and oiling system as the recalled non-hybrid vehicles. Toyota has not demonstrated that hybrid engines were manufactured differently or are immune to the defect that prompted the recall. In towing conditions, an internal combustion engine failure creates an immediate safety hazard even if limited electric propulsion remains available. Electric-only operation provides severely reduced power, limited speed, and restricted torque, making highway merging, grade climbing, or maintaining safe traffic flow unsafe while towing. Retaining minimal electric motion does not equate to maintaining safe propulsion under load. Additionally, a catastrophic engine failure may introduce metal debris, oil pressure loss, or thermal imbalance that can compromise shared drivetrain and hybrid coupling components. The presence of an electric motor does not mitigate the underlying defect risk or the secondary damage potential. Toyota’s distinction between hybrid and non-hybrid vehicles appears to be regulatory and financial rather than engineering-based. The same defect risk exists regardless of the hybrid system. I request that NHTSA evaluate whether Toyota’s exclusion of hybrid vehicles is based on actual engineering differences or solely on regulatory interpretation.

While driving down the highway at ~70 mph, the truck's powertrain suddenly shut off. The electronics still worked, but the rpms dropped to zero. I was forced to pull off to the side of the road, where I tried to turn off and turn back on. The truck kept on turning off and on by itself electronically, but the engine and transmission wouldn't engage for roughly 10 minutes. I was eventually able to start the truck and limp home, but the engine was knocking afterward. Completely shutting down while driving down the highway at cruising speeds is insanely unsafe.

See all problems of the 2024 Toyota Tundra 🔎.

The hybrid version of the Toyota Tundra uses the same base v35a-derived engine architecture, block casting, bearing design, and oiling system as the recalled non-hybrid vehicles. Toyota has not demonstrated that hybrid engines were manufactured differently or are immune to the defect that prompted the recall. In towing conditions, an internal combustion engine failure creates an immediate safety hazard even if limited electric propulsion remains available. Electric-only operation provides severely reduced power, limited speed, and restricted torque, making highway merging, grade climbing, or maintaining safe traffic flow unsafe while towing. Retaining minimal electric motion does not equate to maintaining safe propulsion under load. Additionally, a catastrophic engine failure may introduce metal debris, oil pressure loss, or thermal imbalance that can compromise shared drivetrain and hybrid coupling components. The presence of an electric motor does not mitigate the underlying defect risk or the secondary damage potential. Toyota’s distinction between hybrid and non-hybrid vehicles appears to be regulatory and financial rather than engineering-based. The same defect risk exists regardless of the hybrid system. I request that NHTSA evaluate whether Toyota’s exclusion of hybrid vehicles is based on actual engineering differences or solely on regulatory interpretation.

See all problems of the 2022 Toyota Tundra 🔎.

The truck, randomly experiences hesitation, and or lag when pulling out from a dead stop. Twice it has been so bad as to nearly cause an accident. It also causes out of control acceleration as you don't know when if if the truck will actually accelerate or how much.

My Toyota Tundra (2023) has a recall notice due to possible debris in the engine that is over a year and a half old. This still has not been repaired by the manufacturer. I can hear sounds like knocking coming from the engine and I am concerned that the vehicle could stall or stop while driving on the highway with my children and cause a severe crash. How do I get the vehicle engine replaced expeditiously? the recall is 24v381.

I am submitting this complaint regarding Toyota’s decision to exclude hybrid vehicles from an active safety recall affecting non-hybrid Toyota Tundra models equipped with the same twin-turbo v6 engine architecture. Toyota has stated that hybrid vehicles are excluded because they retain motive power through the electric drive system in the event of an internal combustion engine failure. This rationale does not address real-world safety risk and does not reflect the mechanical realities of towing or highway operation. The hybrid version of the Toyota Tundra uses the same base v35a-derived engine architecture, block casting, bearing design, and oiling system as the recalled non-hybrid vehicles. Toyota has not demonstrated that hybrid engines were manufactured differently or are immune to the defect that prompted the recall. In towing conditions, an internal combustion engine failure creates an immediate safety hazard even if limited electric propulsion remains available. Electric-only operation provides severely reduced power, limited speed, and restricted torque, making highway merging, grade climbing, or maintaining safe traffic flow unsafe while towing. Retaining minimal electric motion does not equate to maintaining safe propulsion under load. Additionally, a catastrophic engine failure may introduce metal debris, oil pressure loss, or thermal imbalance that can compromise shared drivetrain and hybrid coupling components. The presence of an electric motor does not mitigate the underlying defect risk or the secondary damage potential. Toyota’s distinction between hybrid and non-hybrid vehicles appears to be regulatory and financial rather than engineering-based. The same defect risk exists regardless of the hybrid system. I request that NHTSA evaluate whether Toyota’s exclusion of hybrid vehicles is based on actual engineering differences or solely on regulatory interpretation.

I am submitting a safety defect concern regarding Toyota’s v35a 3. 4l twin-turbo v6 manufacturing defect involving machining debris contaminating crankshaft main bearings. Toyota initiated a safety recall in may 2024 for my 2022–2023 Toyota Tundra and Lexus lx vehicles, citing debris left in the engine during manufacturing that can lead to bearing failure, engine failure, loss of motive power, and increased crash risk. In November 2025, Toyota expanded this recall to include my 2022–2024 Toyota Tundra, my 2022–2024 Lexus lx, and my 2024 Lexus GX vehicles, citing the same defect mechanism. Despite this expansion, Toyota has excluded I-force max hybrid vehicles from the recall population. My vehicle is a 2024 Toyota Tundra I-force max, VIN [xxx] , build date 02/2024, with 3,667 miles. It uses the same v35a 3. 4l twin-turbo engine architecture and manufacturing process implicated in the recall. The presence of a hybrid electric motor does not eliminate the underlying defect mechanism (engine-internal debris contamination) nor the risk of sudden engine failure, loss of power under load, or unsafe drivability conditions. Excluding hybrid vehicles appears inconsistent with the stated defect cause and may result in similarly affected vehicles not being inspected, remedied, or disclosed to owners. I respectfully request that NHTSA evaluate whether Toyota’s exclusion of I-force max vehicles is technically justified given the defect mechanism described, and whether additional investigation or recall expansion is warranted. At this time, my vehicle has not exhibited failure symptoms; however, this is a latent manufacturing defect with potential safety consequences. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

When u press the gas the speed hesitates sometimes.

There is a well-known issue with these new model Toyota Tundras where there are problems with acceleration. When at a stop and pulling out from the stop, the engine and acceleration hesitate, and there is a flag of between 2 to 5 seconds before the vehicle starts moving. The gas pedal is depressed and there is a hesitation or lag of several seconds before forward movement progresses. There was a Toyota safety bulletin update that was supposed to fix the problem and it did not. Many users are still reporting the same problem and it’s just as bad as it was before. This creates a massive safety issue when pulling into traffic or trying to increase speed to keep up with the flow of traffic when initially pulling out. My truck specifically is experiencing this anywhere from one to three times a week.

2-3 second throttle lag after pressing pedal from rolling stops and sudden lurches from engine when it decides to go. From dead stops - 2-3 second throttle lag as well and acceleration lurches that are so strong that sometimes it will chirp the tires when it decides to finally go.

I'm having an issue my 2022 Toyota Tundra having incredible throttle lag issues involves a delay and sudden surge when accelerating from a stop, creating a safety concern, often described as a "dead pedal". It has caused me to get into numerous situations where I could've gotten hit by other vehicles. It is so dangerous! the dealership is unable to fix it and says to disconnect the battery regularly to try and "help" the issue.

When accelerating from a stop it has a severe delay. I’ve read now this is not normal. Sometimes the delay can be 1-2 seconds causing confusions at like stop signs and such as I’ve pressed the gas and get nothing. Not reported to dealership but will on next oil change as this has been a persistent problem since purchase.

Hesitation from vehicle when pressing gas coming from a rolling stop. Late response from vehicle which may increase risk of crash or injury when vehicle does not move.

When at a stop, pushing the gas pedal to go, the truck hesitates. Almost like the truck dies then all of the sudden takes off. I have had multiple instances were I was almostnt-boned. Dealer said that is normal for a vehicle with turbos. We don't experience this with my wife's kia. No warning lights appear. Just to be clear the truck hesitates at almost every stop when trying to accelerate.

Throttle lag or hesitation after a stop, and is more frequent after stopping on an incline.

My 2024 Tundra has a throttle delay at times. When you go to accelerate quickly there is a second where the throttle cuts out and the truck stalls. This has almost caused me to get in multiple accidents.

Intermittent throttle response issues or engine lag. When coming from a complete stop, the truck will sometimes move slightly once the throttle is applied, then lose all engine power momentarily before beginning to move again. This is a recurring issue.

I get throttle lag/hesitation most often when starting to go from a complete stop. This has happened many times.

Taking off at a stop and merging in traffic or any complete stop there's a lag or dead spot in the gas pedal,a severe at times hesitation before it finally proceeds to move,a dead spot between hitting the gas and actually taking off. Scary at times. ,this truck had this lag before engine replace and only now has 5,000 miles on new engine and still does it. This happens every time you drive it. Not a particular incident or when it's the truck is cold or warmed up.

When slowing down and then accelerating or coming to a stop on an incline and then gassing it, the truck will stall for 1-2 seconds and then launch off. This has almost caused a wreck multiple times as I get stuck in the roadway for 1-2 seconds before being able to cross the lane and complete my turn. The dealership has said they've heard of the issue but could not duplicate it. No dashboard lights came on during the power failure.

Truck regularly experiences throttle lag leading to dangerous/hesitating entry into traffic/intersections. Either each occurrence, after 1 to 4 seconds the vehicle will lurch forward hard after the pause. It has also happened when accelerating to pass on the highway. This also happened with the original and replaced engine.

When I am coming to a stop , but not a complete stop ( such as at a yield sign) the vehicle hesitates when I hit the throttle. It takes a second for the truck to engage. This is very dangerous. I believe that this could potentially cause a collision due to the vehicle not beginning motion when the throttle is pushed.

The contact owns a 2023 Toyota Tundra. The contact stated that while driving at 65 mph, the message to take the vehicle to the dealer to check the engine was displayed. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that the failure persisted. The contact stated that the messages were displayed while on a long trip. The manufacturer was not notified of the failure. The failure mileage was approximately 53,000.

The contact owns a 2023 Toyota Tundra. The contact received notifications of NHTSA campaign numbers: 25v322000 (exterior lighting) and 25v767000 (engine and engine cooling); however, the parts to do the recall repair were not yet available. The contact stated that the vehicle registration was scheduled for renewal in January 2026; however, the renewal might not be approved with open recalls. The manufacturer was contacted; however, the contact was informed that the parts were not yet available. The contact had not experienced a failure.

Throttle lagging, truck won’t accelerate at low speeds and is very jerky.

I am experiencing an ongoing issue since the truck was new: the engine hesitates upon acceleration at any speed. When stopped this lag in throttle response makes it difficult to navigate in heavy or unpredictable traffic as the vehicle does not response to the pedal instantly and making intentional sudden speed changes is all but impossible to do safely. Depressing the pedal heavy to try and hasten the response makes the truck surge into hard and fast acceleration, worsening the issue. I have discussed this with the dealer and they said this is “normal” for this truck, and I have heard the same from numerous other 3rd generation Tundra owners. This is a safety issue because I don’t have adequate control of the vehicle’s dynamics as the computer is overriding my control of the acceleration, presumably to improve fuel economy. Ultimately this seems to be an intentional design decision by Toyota and puts me and my passengers at risk.

I continuously experience throttle delay when accelerating from a stop. This has almost led to being hit several times when pulling out into an intersection. This seems to be a common issue for newer Tundras.

I’ve noticed that my Toyota Tundra occasionally fails to start moving from a complete stop at a light or stop sign and hesitates. I’ve pressed the gas pedal all the way down, but it doesn’t respond. It usually takes a second attempt before it will move from a stopped position. This first happened during my first week of owning the truck and has occurred a few more times since. I didn’t think much of it at first, but it happened again while I was stopped on an incline in a right-turn yield lane. I released the brake, and when I pressed the gas pedal, nothing happened—the truck even felt like it was rolling backward. I floored the gas, and after a few seconds, it finally took off. I started looking online and found that many others have reported the same issue. There’s even a youtube video from someone who experienced [xxx] I plan to take the truck to the dealership to have it checked out, but this definitely feels like a significant safety concern. I’ve made no modifications to the truck; it’s completely stock with no tuners or aftermarket adjustments. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Throttle lag/hesitation.

The contact owns a 2024 Toyota Tundra. The contact stated that while driving in inclement weather, the rearview camera became inoperable, and moisture was visible in the displayed image. The contact also stated that while driving at 50 mph, the vehicle stalled. There was no warning light illuminated. The vehicle did not need to be restarted. The contact received notification of NHTSA campaign numbers: 25v322000 (exterior lighting) and 25v767000 (engine and engine cooling); however, the parts to perform the recall repairs were not yet available. The vehicle was taken to the dealer, but was not diagnosed or repaired. The dealer confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The approximate failure mileage was 40,000.