2023 Toyota Tundra Engine Problems

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

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.

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.

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.

This is an engine failure recall and after multiple conversations with my service advisor, I am being told that my "vehicle is not ready for the corrective action at this time". When I ask him what constitutes "being ready", he states that "the engine pretty must has to be dead". My reply, "In other words, I need to be stranded with an inoperable vehicle before Toyota is going to allow a claim submission?" His reply, "yep, that is pretty much it." So, I am driving a car over mountain passes every weekend, late at night, just waiting for it to die for a known recall, and Toyota is not taking any action. This car only has 37,700 miles on it and it not what I expected out of purchasing a new Toyota.

Driving down the highway at about 50 mph. Went to pass another vehicle and engine shut off. Thank goodness was able to pull to shoulder and get towed to dealer. Could have been a catastrophic situation.

Toyota has recalled vehicles (24V-381) with the exact same motor that I have, but my truck has not been recalled simply because it is a hybrid. Their reasoning is that the hybrid motor will allow you to still move if the internal combustion engine does not work. Many hybrid owners have stated when their motor died they could not move. Toyota needs to include ALL the motors in this recall, including the hybrid engines. This is a safety issue that needs to be addressed.

Throttle lag Happens 2-3 time a day in many instances due to the delay almost causing accidents

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 repairs were unavailable. The local dealer was contacted and confirmed that the part was not yet available. 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 had not experienced a failure.

Throttle lagging issues and delayed acceleration.

See attached document for complaint. 100,000 Toyota Tundras have been recalled for Engine defects that require engine replacements. Toyota recall letter directed me to contact my dealer for engine replacement information. I have been to Toyota of Cedar Park, Texas three times just to find out if there is a schedule that will let me know when my truck will be serviced for engine replacement. The answer was no. More questions and no answers. How many have been completed to date? Are the 2022 Tundras completed? No answer. Any idea as to when my engine will be replaced? No answer I contacted the Toyota Brand Engagement Center in Plano, Texas. My notice stated that if I needed further assistance to contact them. They could not answer any of my questions and did not know when a remedy would be available. A loss of drive power while driving can increase the risk of a crash. Why would the NHTSA allow 100,000 vehicles with defective engines to operate on the road with the risk of crash? The issue was identified in 2022 or four years ago. Why does the Toyota letter say we will notify you again when we identify a remedy. The remedy has already been identified by Toyota of Japan. They have approved replacements of engines. How long is a reasonable time for consumers to have to wait to resolve this issue? I do not feel confident driving a vehicle that can lose power at any time. Automakers have more rights that consumers. I paid a premium for this Toyota Truck. No new trucks should be allowed to be sold until these defective trucks are repaired. In my last visit to the dealership they offered me $27,000 dollars less than what I paid for my truck. I think the devaluation is due to these recalls. As stated earlier, I write this letter because Toyota has failed or is unable to remedy two defects within a reasonable time. I am requesting assistance from the NHTSA to hold Toyota accountable for these defective engines. I would like to know when my engine is going to be replaced.

The contact owns a 2023 Toyota Tundra. The contact received notifications of NHTSA Campaign Numbers: 25V657000 (Back Over Prevention), 25V322000 (Exterior Lighting), and 25V767000 (Engine and Engine Cooling); however, parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The contact stated that while driving 55 MPH in stop-and-go traffic, the engine failed to operate as needed, and the contact was able to coast into a nearby parking lot, where the vehicle became immobile. There were no warning lights illuminated. The vehicle was towed to the dealer, but was not diagnosed. The vehicle was not repaired. The manufacturer was informed of the failure and confirmed and not received a report from the dealer. A case was opened with the manufacturer. The failure mileage was 34,736.

Extreme throttle hesitation, and lag at low speeds. Causes a safety risk when in traffic or starting to stop situations due to the delay between when the driver presses the throttle pedal and when the vehicle moves. Often times the vehicle lunges aggressively. It happens every time you drive it.

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. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

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.

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.

cold morning (between 32-40 degrees) come to complete stop at stop sign. lag between input and delivery

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.

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.