Toyota may say that it won't improve mileage but I know that if I had it on my TCH I could get a slight improvement. The computer on the car is good but not as good as the human brain.

I suspect that what they are trying to convey is that it is not a panacea. You cannot stay in EV mode indefinitely.

I would like to see this feature migrate to the TCH but also to imrove on what they have used elsewhere. I can often get the TCH to go into EV at 35-38 miles per hour. It would be nice to have the switch and to have it function up to 40 miles per hour.