Power Train Related Problems of the 2025 Toyota Prius

Table 1 shows one common power train related problems of the 2025 Toyota Prius.

Table 1. Power Train related problems of Toyota Prius

Problem Category Number of Problems
Power Train problems
2

Power Train problem #1

I am submitting this complaint to report an unexpected transmission shift event that occurred while operating my 2025 Toyota Prius at highway speed which created an immediate and obvious safety risk. The event occurred on xxx. While driving my Prius at approximately 75mph on interstate [xxx], I reached toward the center console area to retrieve my sunglasses. I did not intentionally move the shifter, but the transmission suddenly shifted from drive to neutral. After moving from drive to neutral, the accelerator no longer provided propulsion. At the time, my vehicle was traveling downhill and was being followed by an eighteen-wheel tractor trailer. The truck driver behind me had no way of knowing that my vehicle had unexpectedly lost the ability to accelerate. To avoid being struck from behind, I steered left into a paved median area, applied the brakes, and was able to shift back to drive and merge into the traffic flow. Had a paved escape area not been available, it seems inevitable that our chances of being in a fatal collision with the vehicle behind us would be quite high. My concern is that a normal driver movement (reaching for an item near the center console while driving) may inadvertently have caused the transmission to enter neutral at highway speed resulting in the possibility of serious harm or fatality. I believe this presents an unacceptable safety hazard and warrants investigation. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Power Train problem #2

Randomly, the car have a delay of approximately 2 seconds when I hit the gas pedal. It happened multiple times, 2-3 times per day. The gas pedal can pe pressed to the floor, it won’t react. After 2 seconds or so it will react and drive normally. I noticed this is happening when the car is in ev mode ( I’m either stopped at red light, or I’m slowing down a bit/taking a turn. This is a hazardous situation and very dangerous.


Power Train related problems in other Toyota Prius model year vehicles:



Prius Service Bulletins
Prius Safety Recalls
Prius Defect Investigations