2025 Toyota Tundra Fuel System Problems

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.

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.

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.

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.

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.

There is clear hesitation and lurching when accelerating.

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