Engine And Engine Cooling Problems of Toyota Tundra - part 1

I was turning left from a stop sign on to a busy road. Immediately after beginning to pull out, the engine stalled and left the truck powerless in the middle of the intersection. I almost got t boned from vehicles traveling both directions. The truck eventually regained power a few seconds after the stall. I had my wife and toddler with me and the situation could have been bad. I no longer the trust the truck which sucks being that it has 2500 miles. Searching online, many owners have had this happen and Toyota refuses to do anything meaningful. This needs to be recall before someone gets hurt, or worse. I’ll be taking the truck in but am doubtful anything will come of it from the dealership.

I was on the highway driving about 70 mph, when the engine suddenly turned off. The lights on the dashboard stated that I needed to pull over immediately. The truck was towed to a dealership who confirmed the engine was "destroyed" due to safety recall 25ta14.

See all problems of the 2024 Toyota Tundra 🔎.

Ubject: urgent safety incident report: engine seizure at highway speeds – case #xxx to the Toyota safety & compliance department: I am writing to formally report a critical safety incident involving my 2024 Toyota Tundra (VIN: [xxx] ). Incident description: while traveling at highway speeds, the vehicle’s engine suffered a catastrophic internal seizure and shut down completely without any prior warning. This resulted in an immediate loss of motive power in the middle of high-speed traffic. Because the engine died, I also experienced an immediate loss of power steering assist and power brake vacuum, making the vehicle extremely difficult to control. I was forced to perform an emergency maneuver to avoid a rear-end collision and struggled to steer the truck toward the shoulder while other vehicles swerved around me at high speeds. Safety hazard & manufacturing defect: this failure is identical to the conditions described in NHTSA safety recall 24v-381 (Toyota recall 25ta14). The dealership's diagnosis at autonation Toyota weston confirmed that the bearings are discolored and "spun," which is a direct consequence of the manufacturing debris that Toyota has already admitted exists in these engine blocks. Bad-faith warranty denial: despite the life-threatening nature of this event, the dealership is attempting to blame "abuse" based on a software log from the brake override system. They are ignoring the fact that a metallurgical failure of the main bearings has no mechanical link to pedal input. Using a safety software record to deny a repair for a known manufacturing defect that nearly caused a fatal accident on the highway is unacceptable. Requested action: I demand that this case be immediately reviewed by Toyota’s safety team. My vehicle manifested the exact defect described in the federal recall during a high-risk situation. I am requesting an immediate resolution to remove this dangerous vehicle from the road and to honor the terms of the information redacted pursuant to the freedom of information act (fo.

The 2023 Toyota Tundra hybrid’s powertrain design may be insufficient to maintain basic safety maneuvers (specifically "limp mode" or emergency clearing) during an engine failure while operating under high-load conditions in mountainous terrain. This creates a life-threatening hazard for the occupants and other motorists. ?statement of fact: as an owner of a 2023 Toyota Tundra hybrid, I primarily utilize this vehicle to tow a 9,000 lbs travel trailer through the high-altitude, steep-grade regions of utah. These routes frequently consist of narrow, two-lane mountain passes with no shoulders and steep drop-offs. ? ?failure under stress: engineering logic suggests that engine stress is highest during heavy towing on steep grades. If a primary engine failure occurs in these conditions, the hybrid system’s battery and electric motor capacity are, in my experience, inadequate to move a combined gross combined vehicle weight (gcvw) of approximately 15,000+ lbs to a safe location. ?while the hybrid system may allow a light, unladen vehicle to limp to a shoulder under "ideal conditions," it lacks the torque and sustained power to move a heavy trailer on a grade once the internal combustion engine is compromised. ?in the event of a failure, the vehicle would likely become "dead in the water" in the middle of a live, narrow lane on a blind mountain curve. Without the ability to reach a turnout or even a marginal shoulder due to the weight of the load, the vehicle becomes a stationary target for other high-speed mountain traffic, posing a severe risk of rear-end collisions and multi-car accidents. ? I am requesting that the NHTSA investigate the performance of the Tundra hybrid’s "fail-safe" modes specifically under maximum towing capacity on grades.

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My truck engine seized at highway speeds on 4/29/2026. Machining debris seized to the engine’s bearings causing oil to dump from the engine and the engine to completely seize. This is the same issue that nhsta forced Toyota to issue a recall on 2022-2024 Toyota Tundras.

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The contact owns a 2024 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 repairs were not yet available. The local dealer was contacted and 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 issue. The contact had not experienced a failure.

While driving, I noticed that the vehicle seemed sluggish. Shortly after, I experienced grinding and knocking. The engine then stalled when I came to a traffic light. Fearing for my safety, I was able to get the engine to re-start to be able to pull off the road into a parking lot. At this point, the engine was barely running and making a ton of noise. There were no warning lights prior or after the incident took place. The vehicle was towed to my local Toyota dealership who performed an inspection and determined that the short block needs to be replaced, despite the contamination risk of other components. I have demanded that Toyota replace the engine with a complete new assembly, however, they are declining to do so.

First engine has not failed yet, it will happen. It presents a safety defect potential stalling , engine failure, or worse. . . . It is same engine as non-hybrids . Build date December 2023. Cuurent milage 23k . Toyota excluded hybrids with no proof safely exit hwy under electric power. I avoid passing lane for this very reason. Hybrid cannot gain speed to get over to side of the road. With drastic loss of speed . Even more dangerous if pulling trailer. Sumitt November 6, 2025 defect information report Toyota sent to NHTSA . Section no 6 I find very interesting and disturbing. While Toyota voluntary did recall , the report indicated engine failure not from debris but main bearing failure defects. Grenade waiting to happen. Hybrid owners with false safety from Toyota that can get over is a very dangerous message. Same defect engine exact as ones under recall. They are currently being sued over this. Nhtsa must take action to include same defect engine in the hybrids. Also putting link to a video of a tear down where took nearly 3 years get a blown engine for teardown. I see why now. 2026 engine has fixed main bearings with more oil pathways. If it was ever a debris issue , Toyota would have never fixed defect main bearings and more oil pathways. Fixwd 2026 engine going into recall. November 6, 2025 defect information report shows that main bearing failure. With that allowing Toyota to exclude same engine in hybrid will be failure of of NHTSA. Please help keep my family safe. Link to video teardown [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Approaching a round about at a slow rate of speed, prior to entering I noticed there was time to safely enter the round about ahead of a car also entering the roundabout from another direction. I pushed the accelerator pedal to about 30% at the time I choose to enter the traffic circle and attempted to enter. The truck did nothing in response except keep rolling forward due to the momentum I already had while approaching the round about / traffic circle. After about 2 seconds, I pressed the pedal to about 70%. This still did nothing for about another 1 second, before the truck accelerated as if I had pressed the pedal to 70% from a stop. Fast acceleration into the round about which caused a narrow miss between me and the original car mentioned that was also entering the traffic circle.

While driving on a two-lane highway at approximately 80–85 mph and attempting to pass another vehicle, the engine suddenly shut off without warning. The vehicle lost all propulsion, and steering assist was significantly reduced, creating a dangerous situation and nearly resulting in a head-on collision with oncoming traffic. Warning lights including check engine and low power steering illuminated immediately after the stall. The vehicle would not restart for several minutes and was temporarily disabled in the roadway. The vehicle was later inspected by a dealership, which confirmed through diagnostic data that multiple engine stall events occurred at highway speeds. The inspection also identified system-wide electrical voltage drops and multiple communication faults between control modules. The dealership attributed the issue to a loose battery terminal; however, the diagnostic report indicates prior voltage irregularities and multiple affected systems, suggesting a broader failure condition. This incident is consistent with an active safety recall affecting this vehicle, which states that the engine may stall during driving. The failure has not been reproduced since the initial incident, but the vehicle has documented evidence of multiple stall events and remains a safety concern. The vehicle is available for inspection upon request. Due to the sudden loss of power at highway speed and the inability to safely control or accelerate the vehicle, this issue poses a serious risk to the driver and others on the road.

I am reporting multiple safety-related defects on my 2025 Toyota Tundra (approx. 18. 5k miles, purchased 07/25). Toyota has been made aware and has not resolved these issues. The most serious defect is deterioration of the driver-side air intake housing. While replacing the air filters, I observed the airbox shedding internal material directly onto the engine air filter. This is not external debris and there are no signs of rodent intrusion, indicating internal component breakdown. This vehicle shares the v35a engine platform, which is subject to recall for debris contamination leading to main bearing failure, engine stall, and loss of drive power. The presence of internally generated debris upstream of the engine creates a credible risk of engine damage or sudden failure while driving. Toyota’s recall documentation confirms debris contamination can cause engine stall and loss of drive power. The windshield cracked during extreme cold weather. The crack originated near the lower edge at the wiper/cowl interface and propagated upward in a pattern consistent with stress or thermal failure, not impact, affecting visibility and structural integrity. Additionally, the lower front bumper trim cracked without meaningful impact, and the rear bumper failed under minimal load in cold conditions. These failures indicate material brittleness and raise concern for reduced crash protection and increased risk of injury in a collision. Other issues include driver-side seat trim cracking and premature paint and trim degradation. Similar failures, including windshield cracking, trim failure, and cold-weather brittleness, are widely reported by other 2022+ Tundra owners, indicating a potential systemic defect. Given the known engine recall and active internal material degradation in the intake system, there is a credible safety risk of engine stall, sudden loss of power at speed, reduced visibility, and increased injury risk due to compromised bumper integrity.

The contact owns a 2016 Toyota Tundra. The contact stated that while driving at slower speeds, the vehicle stalled while depressing the accelerator pedal. The check engine warning light was illuminated. The vehicle was towed to a local dealer to be diagnosed. The contact was informed that the fuel pump and other fuel pump-related parts needed to be replaced. The vehicle was not repaired because the parts were on back order. The manufacturer was made aware of the failure. The failure mileage was approximately 67,000.

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My 2023 Toyota Tundra hybrid's engine has expired and been confirmed by Toyota dealership and Toyota corporate. They are rebuilding the motor, which is outside of warranty but my specific truck is not on the recall list, therefor I will not get a new motor, but a rebuilt motor. I was put at risk of complete engine failure, leaving me stranded on the side of the road. The vehicle was towed to reliable Toyota dealership in springfield, mo who confirmed that I would need a new motor. They opened a case with Toyota corporate, which agreed to a rebuild motor, but not a new motor, as this model is not under the recall. There were zero warning lamps, messages, or other symptoms before the complete failure.

With only under 23000 miles, engine started clunking on way back home from a day trip. Took the truck to dealer and they said the engine tech will see on Monday, but almost 100% it’s the engine. They want to rebuild and not replace because my VIN is not in the Toyota engine recall yet. Please help with this, I can’t be risking pulling my 9000 boat and the rebuild engine to crap on me on the hwy with kids and family in truck. Thank you.

It is unknown exactly what causes the issue. But intermittently when taking off from a stop, the powertrain hesitates to respond to my input on the throttle. The hesitation lasts anywhere from half a second to a full second. This puts my safety and other driver’s safety at risk because I cannot reliably tell whether I will be able to pull out quickly and safely in front of an oncoming vehicle. The problem has not been reproduced by a dealer on my particular vehicle. There has been no inspection. There are no warning lamps, messages, or other symptoms. This issue has happened since the truck had only 9,500 miles on it.

After coming to a complete stop to make a turn, throttle became unresponsive and then engaged. No warning lamps or noises.

Vehicle is subject to two active safety recalls, both listed as “remedy not available. ” one recall involves a potential engine defect related to manufacturing debris, which may result in engine damage and sudden loss of motive power. Manufacturer recall documentation indicates this condition may increase the risk of a stall, particularly under sustained load such as towing or highway operation. A second recall involves reverse lamp failure, which reduces rear visibility and may increase the risk of a crash when backing. No failure event has occurred. However, both safety defects remain unresolved, and no repair or timeline for remedy has been provided. The vehicle is used for towing and hauling, which requires sustained engine load. Due to the risk of engine stall under load and the absence of manufacturer guidance regarding safe operation, use of the vehicle for towing and long-distance travel has been limited. These conditions have been confirmed through manufacturer recall notices. The vehicle has not been repaired because a remedy is not yet available. No warning lights or symptoms have been observed. The concern is based on the nature of the defects described in the recall and the lack of available repair or operational guidance.

Dead pedal incidents. At least 4 times in the 6months of ownership, I've experienced where when you press on the gas to go, there is no acceleration for approx 2 seconds. Its almost caused an accident 2x of the 4x times its happened. I feel it may be related to the transmission. Prior to this truck I had a 22' Lexus ls500 fsport which I think also has the 10 speed trans and twice experienced similar conditions. It kind of feels like the trans is slow in downshifting, trying to figure out where it needs to be.

The contact owns a 2022 Toyota Tundra. The contact stated that the engine was blown while driving at 10 mph. No warning lights were illuminated. The vehicle was towed to the local dealer, where it was diagnosed, and determined that the engine needed to be replaced. The engine was replaced, but the failure recurred. The manufacturer was contacted and confirmed that there was no warranty coverage associated with the vehicle. The failure mileage was approximately 71,000.

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The contact owns a 2023 Toyota Tundra. The contact received notification of NHTSA campaign number: 25v767000 (engine and engine cooling); however, the part to do the recall repair was not yet available. The vehicle was taken to the local dealer but was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as needed before the vehicle stalled slow pace and the vehicle stalled. The approximate failure mileage was 50,000.

My 2024 Toyota Tundra platinum (VIN [xxx] ) had multiple times where I had delayed throttle response which created close call of accident while turning. I researched my VIN and it is subject to safety recall 25ta14 for v35a engine stall due to manufacturing machining debris causing main bearing failure. Toyota has issued this recall but no repair remedy is currently available. The authorized dealer (ed martin Toyota, indianapolis, indiana) has confirmed they do not have authority to perform the repair and cannot provide a remedy timeline. I have surrendered the vehicle because I do not feel safe operating it. I am without transportation indefinitely. This vehicle has also been subject to four additional safety recalls: 26ta02, 25ta10, 25ta06, and 24ta02. I previously filed a formal buyback claim with Toyota motor north America (claim no. Xxx) in November 2024 which was denied. Toyota has since issued three additional recalls on this same vehicle. I am requesting federal intervention and investigation into Toyota’s failure to provide a timely remedy for this safety recall. ” information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Nhtsa 25v-767 indicates potential issue with manufacturing debris in the engine potentially resulting in engine failure. Recall status indicates "remedy not yet available". It has been over 4 months (11/6/25 to 3/19/26) since this safety recall was filed. This has been an unreasonably long time and Toyota should be compelled to initiate the remedy immediately and provide a detailed explanation as to why it is failing to meet its own code of conduct with respect to product safety and the law.

I am seeking a case review regarding a persistent and unresolved drivetrain issue with my 2025 Toyota Tundra (non-hybrid) that began immediately following a dealership service visit and has continued for over one month without resolution despite multiple repair attempts. Since that time, the vehicle has exhibited consistent transmission-related defects including failure to shift properly into higher gears (notably not reaching 10th gear at highway speeds), rpm hanging under light throttle, delayed acceleration followed by sudden surges in power, and harsh or erratic downshifting that causes the vehicle to lurch forward when slowing to a stop. The vehicle also demonstrates inconsistent torque delivery, where boost builds but power is not transferred until a delayed and abrupt engagement occurs. These issues are most pronounced during normal highway driving conditions and significantly impair drivability and safety, particularly when merging or maintaining speed. I have brought the vehicle to multiple Toyota dealerships for inspection, where diagnostic scans have not produced any fault codes and I have repeatedly been told the vehicle is operating “within normal parameters,” despite the ongoing and reproducible performance issues. The dealerships have been unable to replicate or resolve the problem, and I have received inconsistent explanations ranging from normal operation to speculative driving pattern causes. I have an active case open with Toyota corporate, but after a month of delays, lack of diagnosis, and no corrective action, the issue remains unresolved. Given the ongoing safety concerns, repeated repair attempts, and inability of Toyota to identify or fix the defect, I am now left without a resolution & am instructed to drive the vehicle despite drivetrain issues.

The engine lost complete power. This is a 2024 Toyota Tundra I=max force hybrid. The low oil pressure, hybrid malfunction, check engine lights all came on. I lost all power, steering, brakes, and had no hybrid assist. I was nearly hit from the back. I was able to get help from people to push it out the highway. There was no warning prior to this happening. I have read about all the engine problems from the 22 and 23 year models and recalls are out. There are no recalls for the hybrid 2024 engines, but this looks the same as what I am reading.

It’s been almost a year with no fix in sight for my tail lights. And my motor has had a recall on since November with no fix in sight. I’ve started the lemon law/buy back process on March 4th and have no communication from Toyota either any updates since . I’ve had no failures to date but want my recalls fixed or truck replaced so I can sell my vehicle.

When at proceeding from a stop or a "rolling stop", the vehicle has delayed throttle response or lag. Causes big problem when trying to get into traffic. This has been ever since I have owned this vehicle.

The contact owns a 2023 Toyota Tundra. The contact received notification of NHTSA campaign number: 25v767000 (engine and engine cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

I received recall (Nov 2025) for engine replacement due to safety failure of the engine and Toyota still does not have replacement. Also received recall for reverse lights that are still not avaialble (Feb 2025).

My Tundra truck is having throttle lag. I pull out into traffic and there is no power. I put the throttle all the way to the floor and still nothing. After 2 to 3 seconds the engine starts to slowly throttling up, but very slow and no turbo. This has happened at least 15 times now since I owed it in July of 2025. That scared me so bad I now have it at the dealer for diagnostics. They had better fix it, I almost got into a wreck.

The contact owns a 2024 Toyota Tundra. The contact received notifications of NHTSA campaign numbers: 25v322000 (exterior lighting) and 25v767000 (engine and engine cooling); however, the parts for the recall repairs were not yet available. The dealer was contacted, and the contact was informed that the parts were not yet available. The manufacturer was contacted, and the contact was informed that the parts were not available. In addition, the contact was informed that the parts could take eight months or more to become available. The contact stated that the vehicle was unsafe to drive. In addition, the contact stated that the vehicle was used to transport his wife and grandson to their destinations. The contact had not experienced a failure.

My vehicle is equipped with the same v35a-fts 3. 4l twin-turbo v6 engine and #1 main bearing assembly that is currently under federal recall for catastrophic engine failure (recalls 24v-381 and 25v-767). Despite the shared mechanical defect of machining debris and bearing tolerances, Toyota has excluded the I-force max hybrid models based on the assumption that the electric motor provides sufficient 'limp home' capability. I believe this is a critical safety oversight, as a sudden internal combustion engine seizure at highway speeds creates an unpredictable loss of motive power that a small hybrid battery cannot safely manage in high-speed traffic. I am filing this to urge the NHTSA to expand the recall scope to include hybrids, as the primary power source is fundamentally defective and prone to stalling without warning.

The vehicle while parked and not running on our driveway burst into flames and had large fire and explosions that burned the vehicle front half completely. The whole engine compartment burned and melted and destroyed the vehicle. No warning lights, no issues. Just burst into flames and destroyed the vehicle.

My Tundra has been having lagged throttle after takeoff for a few months now going into 2026. My truck is slightly over 50k miles and did well for the first 40k miles. Last week it went limp and gave a loss of power warning and check engine light came on. Then the very next day a parking brake assist warning came on. I brought it to the dealer and after 4 days they couldn't replicate the warning light but seen that the turbo had failure. They said they could not change the turbo since theres an active engine recall on my truck. My truck is sitting at the dealer with no committed date or fix for when my engine will be replaced. Not sure what to even do as im paying on a truck I cant even drive. Aside from this major issue ive had two window motors replaced and a non working hamstring leg rest motor. They instead offered to sell me a new 2026 which felt sleazy on their part. I will not be staying with my 2023 Tundra if and when I get it back knowing we only get a 1 year warranty and crate engines are already failing. Toyota is treating their faithful clients horribly on this issue they caused. Id go as far as saying this should be part of the lemon law act and more needs to be done.

The contact owns a 2024 Toyota Tundra. The contact stated that while driving approximately 70 mph on the highway, the vehicle lost automotive power and decelerated unintendedly. The vehicle failed to accelerate. The check engine warning light was illuminated. The vehicle was taken to the dealer, and the spark plugs were replaced, the brake lines were flushed, and the oil filter was replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 40,000.

Component/system failure: the failure involves the engine cooling system, specifically the radiator, fan shroud, and oil cooling lines. The oil cooling lines are improperly routed or positioned, causing them to press against the plastic fan shroud. Over time, this pressure deforms the shroud inward, leading it to rub against the aluminum radiator and create pinhole leaks. The damaged components are available for inspection upon request. Safety risk: this defect poses a serious safety risk due to sudden coolant loss and potential engine overheating. This can result in loss of power, engine failure, and unexpected breakdowns in traffic, increasing the risk of accidents, especially at highway speeds. Reproduction/confirmation: this issue has been widely reported among 2023 Toyota Tundra owners and confirmed through visual inspection by owners and independent mechanics. The consistent nature of the failure indicates a design defect rather than isolated incidents. Inspection history: the vehicle has been inspected, and deformation of the fan shroud along with visible contact and wear on the radiator confirms the issue. Dealerships have acknowledged the condition but refused warranty repairs. Toyota has not issued a technical service bulletin (TSB). Warning signs/symptoms: there are typically no warning lights or messages prior to failure. In some cases, coolant loss or overheating occurs only after radiator damage has already developed. Additional statement: this is a widespread defect caused by improper routing or clearance of oil cooling lines. Despite numerous similar reports, Toyota has not issued a TSB or recall and has denied warranty coverage, leaving owners responsible for repairs related to an apparent design flaw.