2025 Toyota Tundra Electrical System Problems

Unknown. The truck often lags when the accelerator is pressed. Coming from a stop seems to make it worse. It takes 1-2 seconds more than you would expect as normal for the truck to start to move. This gives you enough time to think something is wrong and cover the brake to prevent you from entering an intersection if there is a problem. The result is that you end up halfway into an intersection slower than you expected, possibly causing an accident. It seems like a combination of electronic throttle control lag, and the 10 speed transmission never knowing what gear to select causes the issue.

There’s a delay in throttle response. Especially when making a turn across traffic. Throttle would not respond for at least 1 to 2 seconds. Even at full throttle the truck did not respond while cars were coming towards me. This has happened to several tundra owners. Check Facebook tundra group and you’ll find others with same issue.

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

The HVAC climate control system in my 2025 Toyota Tundra Limited malfunctioned while the vehicle was idling. The air conditioning had been set to cool and was operating normally, but without any touch to the controls or any alert, the system switched from blowing cold air to blowing warm/hot air. This caused the cabin temperature to increase rapidly. Because there were no warning lights, notifications, or error messages, there was no indication that the air system had changed. The vehicle continued to show that A/C was on and functioning. The malfunction resulted in the cabin reaching a dangerously high temperature. This caused fatal heat injury to one animal and critical heat injury to another, both of which were inside the vehicle at the time. One is still undergoing medical treatment. This same type of HVAC issue has been reported by other 2024–2025 Toyota Tundra owners in multiple owner discussion groups, particularly related to the vehicle blowing warm air at idle or failing to maintain cabin temperature. This suggests a potential widespread defect, whether software-related or involving the A/C compressor control system. This presents a serious safety risk, especially for: Children Animals Disabled or elderly passengers Anyone unable to immediately exit the vehicle The vehicle remains in our possession and can be inspected. Service interactions with the Toyota dealership are documented and available. Immediate investigation is needed to determine the cause of this HVAC failure and whether a recall or TSB must be issued to prevent future injury or death.

The tailgate will not go down when you push the bottom that is on the tail light or when you push the button inside the truck it will not go down. It makes the noise like if it is going to but gets stuck.

The contact owns a 2025 Toyota Tundra. The contact stated that while the tailgate was closing automatically, her grandson's finger was at the upper closing point of the tailgate; however, the tailgate continued to close. The contact's husband put his body weight on the tailgate and was able to stop the tailgate from closing. There was no injury sustained. The vehicle was taken to the dealer, where the contact put her hand at the upper closing point of the tailgate while the tailgate was closing automatically, and the tailgate stopped closing as designed. The dealer informed the contact that they could not fix the tailgate failure to stop closing when a smaller hand or object was within the closing point. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 1,300.

Radar system and traction control shuts off during normal operation and requires vehicle to be pulled over and turned off then back on to regain control. This causea a loss of forward collision warning, brake assistance, traction control, and lane departure assistance