Owner-reported complaints naming the fuel system system, filed with NHTSA
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Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks. Every record below is an owner-reported complaint about the 2025 Toyota Tundra submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 26 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
The 25 most recent of 26, in the owner's own words
Have owned the 2025 Toyota Tundra for about 18 months. Multiple instances of delayed acceleration when stopped or almost stopped, sometimes as much as 3 or 4 seconds. Last time was in early June, 2026. This is very dangerous because when I pull out into an intersection it will start to go but then lose all power for a few seconds with traffic coming behind me. This is something Toyota needs to look into.
I have experienced a severe hesitation or delay in acceleration when accelerating from a stop or near-stop condition. While the issue has only occurred a few times over the past several months, on multiple occasions it happened while merging into traffic and nearly resulted in an accident. Toyota has issued Technical Service Bulletin (TSB-0032-26) addressing this condition. However, when I brought my vehicle to the dealership, Toyota documented that they were unable to reproduce or confirm the hesitation, and no repair was performed. This defect presents a significant safety risk. Unexpected loss of acceleration during traffic merges, intersections, or other situations requiring immediate power can place drivers and passengers in danger and could lead to serious injury or death. Given the safety implications and the fact that the remedy appears to be a software update requiring less than an hour to perform, I believe this issue warrants a formal safety recall rather than a voluntary Technical Service Bulletin. I urge NHTSA to investigate this matter and require Toyota to provide a recall remedy for all affected vehicles.
Problem - throttle lag/hesitation/lurch. Truck won't go when throttle is pressed for a couple seconds cold or hot. Mentioned the problem on my 5000 mile service. Service tech said he could not reproduce the problem but happens with my drives 95% of the time. No warning lights have appeared.
When coming to a rolling or quick stop and then attempting to maneuver across traffic, my truck hesitates for about a full second before accelerating. This delay can create a dangerous situation for myself, other drivers, and pedestrians. I believe this is a safety issue that Toyota needs to address promptly.
I was crossing two lanes of a 4-lane highway from a stop. I floored the accelerator to cross traffic and the truck hesitated for approximately 1-2 seconds in the middle of the highway before finally accelerating. During this time I was completely exposed to oncoming traffic with no ability to move the vehicle. This is not the first time I have experienced throttle hesitation on this vehicle but this was by far the most dangerous instance. The truck has ~17,000 miles and is a 2025 model year
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.
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.
Vehicle: 2025 Toyota Tundra Component/System: Powertrain / Electronic Throttle Control / Transmission Response Complaint Description: I am reporting a serious safety defect involving delayed and inconsistent acceleration from a stop or low speed. What failed or malfunctioned: The vehicle exhibits a significant delay in throttle response. The electronic throttle and/or transmission fails to deliver engine power when the accelerator is pressed. The vehicle is available for inspection upon request. Safety risk: This failure creates a hazardous condition when entering intersections, turning across traffic, or merging. On multiple occasions, the truck failed to accelerate when commanded. In one incident, I pressed the accelerator approximately 75% and the vehicle did not respond for 2–3 seconds, nearly resulting in a collision. Reproduction/confirmation: The issue has occurred multiple times under normal driving conditions from a stop or slow roll. It is intermittent and unpredictable. Inspections: At this time, the issue has not yet been resolved and has not been successfully corrected. (Inspection pending / not yet corrected.) Warning indicators: No warning lights, messages, or fault indicators were present before or during the failure. The hesitation occurs without any dashboard alerts. Additional details: The delay is not typical turbo lag or minor hesitation — it is a complete loss of commanded acceleration for several seconds, followed by sudden engagement. This condition makes the vehicle unsafe to operate in traffic.
After dinner at a restaurant I went to pull out from the parking lot onto a road with a 40 mph speed limit. When I pressed the accelerator to turn, my truck felt like it was in a high gear and just barely moved forward. I let off the gas pedal and pressed again and the same thing. At this point I am drifting into on coming traffic without power. I hit the brake, moved to park, moved the setting to SPORT and then moved back into drive and only then was able to operated the vehicle properly and safely. Fortunately the person on the road did stop and did not hit me, but this is a VERY DANGEROUS situation and something is clearly not working properly.
When accelerating from a standstill, the car hesitates for 1 to 2 seconds after I press the accelerator pedal. This is a safety concern, especially when merging onto the highway (we have stoplight-controlled merge lanes where I live), where accelerating the vehicle is essential to a safe merge into traffic going 65+ mph. There have been no warning lamps.
Ive been noticing a significant lag sometimes when I press the gas pedal. It last just a couple seconds. This could possibly become something bigger. Will update of it gets worse. Also the cruise control doesn't hold the set speed it stays 1 or 2 miles under.
Unacceptable fuel economy. EPA stats 18/23, I have no been able to manage over 14.6 MPG. Truck has 16,xxx miles on it. I am seeing online this is very common. Something needs to be done about to blatant over fabricated numbers.
Several times when accelerating around traffic or cutting across the highway to work I have been nearly t boned when I'll step on the gas and the truck hesitates or does nothing. It usually hesitates for 3 to 5 seconds and then starts spinning tires or other times it will just start lightly accelerating no matter how much gas I give it. It's dangerous because the vehicle is so unpredictable and will eventually result in an accident.
When trying to pull out into traffic from a stop there is a hesitation at times. I go to press on the accelerator and the truck does not always move. There seems to be a delay at times. Seem dangerous when pulling out into traffic. It has happened multiple times. No sure if it is the transmission or what.
The vehicle does not predictably respond to throttle inputs (if it responds at all), when you come off the brake pedal it will begin rolling at "idle" speed as normal but when you begin to increase throttle input NOTHING will happen for several very important seconds as you roll into an intersection or need the vehicle to accelerate to maneuver. This had happened multiple times before scheduling service appointments. The day BEFORE my appointment while trying to make a right hand turn from EB 13st St in Lemont IL to SB Bell Rd, i had stopped for the red light, verified clearance to make the turn, and began my maneuver. Once I came off the brake pedal the vehicle began to roll into the intersection but as I began to turn the vehicle and try to accelerate though the turn it did not respond WHATSOEVER. I desperately tried to roll my vehicle into the ditch to make space the incoming vehicles to minimize danger, but had no power to do so and was violently T-boned. The vehicle was brought to the dealer for their analysis, the service manager initially claimed "I know exactly what it is" and continued to ask questions that prompted previous knowledge of this issue including what speeds and conditions it will occur at.. two weeks later the vehicle is "ready" and the manager claims the "eprom" had 2 pages of codes in it and that "got rid of the hesitation" I take him for a test drive with me and was able to recreate the issue a few times at which point he said "i understand your frustration with the truck but its a GOOD TRUCK" I drove the truck a few days and continued to experience dangerous and unpredictable delays in throttle response, one of which almost caused me to be rear-ended by a semi while merging from IL-rt83 onto I-55 nb The vehicle has been left behind on a family road trip as it is not safe enough for my family. In hind sight I wish I had the opportunity to submit it to NHTSA for examination after the crash rather than than Toyota. PLEASE DO SOMeTHING
While starting to accelerate from a stop whether it is going straight or turning the truck hesitates and takes multiple seconds to start accelerating leading to a potentially dangerous situation especially when turning and you can't get out of oncoming traffics way. Also when at a slow roll trying to accelerate the truck just does not apply any power for multiple seconds delaying movement and potential to avoid an accident.
Throttle delay/ hesitation that is very unpredictable.
The throttle lag is a major safety concern. When pulling way from a stop there is a huge delay in throttle response. This is consistent and has caused me to have several close incidents and nearly an accident. This is a programming issue that Toyota needs to address.
Vehicle randomly stalls or experiences throttle lag/acceleration hesitation particularly when trying to accelerate quickly through intersections and while turning. Almost seems as if the vehicle loses power all together and then quickly comes back.
The vehicle will stall or lag during acceleration from stop or during regular driving while trying to accelerate. Happens continuously throughout ownership of the vehicle.
From a dead stop truck is hesitant to accelerate. Pedal can be pushed all the way down and there is a delay about 1-2 sec. This is very dangerous it and has almost caused an accident a few times already. It only happens after a complete stop and go
There is clear hesitation and lurching when accelerating.
Throttle lag / hesitation when pushing the gas pedal. This is a very serious issue. There are many many complaints about this issue but the toyota and the dealer is not doing anything about it. This hesitation has almost caused me several accidents because the gas pedal does not respond. Causing on coming traffic to swerve or brake to avoid me. Let's hope this issue get attention before it's too late. Just Google "tundra throttle lag" and see how many tundra owners have this serious issue.
2025 Toyota Tundra with 2200 miles. Truck has developed an intermittent lag/hesitation when starting from a stop. At random times, when pulling out into fast moving traffic, hit the pedal to proceed and enter the roadway and it will take a second or two before there is any response from the engine. Oncoming traffic traveling at 50mph are now a second or two closer and need to brake hard to avoid collision. There seems to be a fault between the throttle pedal and the engine. No warning lamps. Difficult to reproduce as it only happens on occasion. Vehicle has not been inspected by a dealership. The issue has been reported to Toyota via online support, message # [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Throttle lag. When I step on the gas pedal, there is a hesitation or lag which the truck doesn't move forward when asked. Very, very dangerous when entering traffic. Almost caused an accident. Not good. This must be addressed before someone gets hurt or killed. This is no joke and should be taken seriously. I hope this doesn't get ignored as this is a serious problem.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
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