general problems of the 2023 Toyota Tundra

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.

Throttle response is unpredictable. From a stop sign, acceleration is difficult to predict. Sometimes a one second delay occures before acceleration power is effected. With the time delay the throttle has been pressed further than normal. In heavy traffic, a collision could be possible. The problem got worse after a firmware update, during a safety recall to replace rearview touch screen. Pedal lag problem is noted on Toyota Tundra forum.

There have been multiple times, since owning the vehicle, when there is dangerous throttle lag. I step on the gas to turn and nothing happens for a few seconds. It can be pretty scary when there is a car coming and the truck just rolls for a few minutes before accelerating. It’s become a major safety concern for my family.

While pulling out into traffic, my truck will suddenly hesitate. It also caused a vehicle to hit me as the truck pulled out into the lane, then suddenly completely lost power. Dealer was unable to replicate. Has happened to me several times when at a stop light. This is slightly safer as traffic behind me is stopped or slowed. It feels like a throttle issue as it completely looses power.

I get random lags in thorttle engagement when starting from complete or rolling stops. When this happens, it behaves like there is a delay between the throttle input and the engine resoponse. Push the throttle to go, and no go, and after a delay of usually part of a second, then it jerks and goes. Most times there is no problem and the throttle responds correctly, but this issue occurs randomly almost every time I drive.

After coming to a stop and then trying to accelerate, I experienced a lag or throttle hesitation when trying to accelerate again. After pushing the pedal, nothing happens, then all of a sudden it accelerates abruptly.

My 2023 Toyota Tundra has an intermittent issue where the throttle lags or hesitates when accelerating from a complete stop. The problem occurs unpredictably and causes the truck to fail to respond when pressing the gas pedal. The issue appears to be related to the engine or throttle response system, and the vehicle is available for inspection upon request. This malfunction puts my safety and the safety of others at risk because the hesitation can occur while turning left across traffic or merging into traffic, leaving the truck momentarily stalled in the path of oncoming vehicles. The problem has not yet been officially reproduced or confirmed by a dealer or service center, but it has happened multiple times under normal driving conditions. The vehicle has not been inspected by the manufacturer, police, or insurance representatives at this time. There were no warning lights, messages, or other indicators before or during the hesitation; it happens without any prior notice.

Over the course of ownership I have had frequent instances of loss of power and/or lack of acceleration resulting in almost stalling out while trying to take off. This causes dangerous situations when trying to pull out into traffic because you never know when the vehicle might hesitate and crest unsafe distances between you and other moving vehicles.

Unknown. Intermittently when merging into highway traffic from the onramp, the truck will stall and I will lose acceleration. There will be a loss in power and the truck speed will not change. Instead it will just coast with no ability to change speed. I have owned the truck for 1 year and 3months. I advised the dealer and they can not duplicate the issue.

Huge delay in the throttle response. You press on the throttle and there is sometimes a hesitation and the vehicle will not move or is jerky.

Throttle lag/lurching: when pressing the gas pedal at a full stop or pulling into traffic on the expressway the truck hesitates. It doesn't immediately go. This happens often. . . Transmission should be recalled. It's very dangerous especially when pulling into traffic on the expressway.

When from a stop vehicle does not accelerate as normal, especially while turning. Lag and hesitation is experienced for a moment and then catches causing a rapid acceleration. When turning across oncoming lanes of traffic the unexpected lag and lack of acceleration considerably increases risk of side collision from cross traffic and risk of rear collision from traffic behind due to inability to know consistent time, speed, and acceleration needed to safely cross lanes of traffic and expected acceleration speed anticipated by vehicles from rear. Concern has been brought up to dealer and properly notified. Dealer was unable to replicate. No dash warnings appeared.

The vehicle inconsistently delays when accelerating from a stopped position. This is more frequently noticed shortly after starting the vehicle. This was first noticed around 10k miles, and my vehicle is currently at 25,235 miles. This has happened approximately 4-5 times. While at a stop sign, judging traffic to enter into the intersection I have pushed the gas with no response for 2-3 seconds then a sudden burst of power. Having worked as a state leo/trooper for over 25 years I find this very concerning. Any delay in acceleration for power could result in a collision.

The vehicle has a hesitation when accelerating or when I turn a corner and then try to accelerate it lags. Had a few incidents where I almost got rear ended due to the issue.

Vehicle was accelerating down hill when engine stopped light came on stop in a safe place. I could not accelerate the gas or control the steering vehicle glided halfway to the side of the road before stopping. Engine stopped completely when exiting the vehicle smoke was coming out of the front hood. I could not shift the vehicles gears the system was completely locked up. Steering power low light came on. Engine stopped light came on. Tried to contact roadside assistance no one came for over 3 hours. Neighbors called a police officer and they had to tow it due to it being in an unsafe location (blocking traffic on a two lane road) without street lights. Vehicle was towed to marietta Toyota dealership.

Truck will have a very bad hesitation when coming to a stop and trying to accelerate again before a complete stop. Many times this has almost got me into an accident when trying to pull out into traffic. You will push the gas and there in a 2-3 second delay before the truck will even move. This often makes it a very close call if you’re not expecting it.

Sometimes my truck hesitates from leaving a complete stop. I will press on the accelerator and there is throttle lag response, which causes me to pull out slower than expected. There was one time where I pulled out and lost throttle power in traffic. I have taken it to the dealer and reported this issue. They flashed the ecu and said that was the only fix they had, but it didn’t do much difference I still experienced the throttle lag from a dead stop.

My son was driving our 2023 Toyota Tundra (non-hybrid) at approximately 25-30 miles an hour when the engine shut down. He had difficulty steering but was able to safely brake to a stop in the middle of the road. Cars were forced to pass him on the shoulder. He was unable to restart the engine for what he estimates was approximately one minute. He was finally able to restart the engine and drive home. The next day I drove it to the Toyota dealer. The engine stalled on me one block from the dealer on a busy intersection. I was able to get it restarted, out of traffic and into the dealership where it sits today. There were no apparent symptoms with the vehicle prior to it stalling on my son. I received an engine failure warning message when the vehicle stalled on me. The dealership looked at the engine and stated that there is lose debris in the engine. The dealership has stated that they are unable to give me a diagnoses letter or a repair order at this time. Once they repair is made, they can give me something in writing. This issue appears to be similar safety recall 24ta07. However, Toyota is stating that my vehicle does not fall under 24ta07. It appears have a vehicle with an engine stall safety issue that is not attached to a recall.

When at a 2 way stop sign, for example, I am fully stopped, foot on the break, I see that there is a break in the cross traffic that indicates that I am safe to cross. I hit the gas and the car does not move for a few seconds. By now the car has me in danger and the other drivers who are coming towards me in the cross traffic. I count on the car to go when I hit the gas, especially when trying to get across a busy street or accelerating from a stop to merge into moving traffic. When the car does not move for a few seconds after hitting the gas, I’ve now been put in danger and have caused a disruption in the flow of traffic as well as putting others in danger. No lights on the dash indicate an issue, the truck is in normal mode, and I have not had this confirmed by a dealer yet, but I’ve read many testimonials from other 2023 Tundra drivers having the same issue.

Lag in acceleration. Press the accelerator and vehicle takes a few seconds to respond. Trying to right turn on intersection and due to acceleration lag almost got hit by another vehicle. The accelerator should respond immediately when pressed just like it does on all the other vehicles I have driven. This has happened on multiple occasions with this vehicle.

Hesitation from a stop. Vehicle isn’t following pedal input and at times can put me into a side collision. Lane keep assist is dangerous and throws me off the road constantly. At times the lane assist will fight my input at the wheel and pull me off-road and over the lines.

When attempting to accelerate, the vehicle idles down and fails to accelerate for a period of 2-3 seconds. To initiate normal acceleration, fully depressing the accelerator pedal is required vs. A gradual depression of the pedal.

The issue is with the auto-braking or pre collision system. Have had multiple instances where system has engaged at low speed which also engaged the auto engine stop feature when it was not necessary. Have noticed system engages on roads with curves where it thinks the vehicle in the other lane is in front of me when its not. The most unsafe thing that happened was when a vehicle quickly changed lanes in front of me and slowed slightly. I saw the other vehicle make the unsafe lane change and was covering the brake and when I pressed the brake it went out from under my foot braking hard on its own when it was not necessary. Vehicle slowed from 65 to about 35 quickly almost causing vehicle behind me to rear end me with no way to stop the system. Since I have owned this vehicle auto brake system has engaged about 5 times and all were not necessary or unsafe. I have lowered sensitivity setting and still have the issue, and am unable to disable system.

Throttle lags/hesitates at times when accelerating from a stop.

In some cases when slowing down to a very low speed an trying to to accelerate again. There can be either a brief (1/2 second) or a very long ( > 1/2 second) delay between pressing the accelerator and the engine responding. Because of this delay its very hard to gauge when and how the vehicle will respond. In some conditions this can be a safety concern as the vehicle behaves unpredictably. I was able to verify this with engine logging data the data shows that the computer acknowledges the accelerator position but fails to advance the throttle or by any means add power for a period of time and then behaves in a expected manner after a delay between 1/2 to 1 second. The best I can gather the problem happens in a timing window when the transmission shifts from a higher gear to 1st gear. I took into the dealer who also verified the concern and opened a tas case with Toyota. Tas took my data but provided no information or guidance to the dealership.

Hesitation on accelerator going from reverse o drive or park to drive.

1. There is some sort of severe throttle lag/takeoff issue that happens intermittently, but almost always several times a day. Always from a stopped position. 2. When you are turning left (going across the oncoming lane) you hit the gas pedal and nothing happens for 2-3 seconds and then it shoots off like a rocket ship. I have never been so close to a severely injured or more likely fatal car crash. This severity has happened twice, once with my daughter in the car. 3. Not yet. Looks like there had almost been a class action law suit back to 2022 model year (same engine I believe). 4. No 5. No warning lights ever. As stated this is going back to 2022 and I haven’t visited a dealer yet as they tell the owners (there is no fix for the issue). Hoping this forum can make a difference.