2008 Toyota Prius - Vibrations above 60

[osage]

At speeds of 60 and higher the engine develops a bad vibration. No codes. What causes this

[It_s-Me]

Are you sure it’s the engine ?

[Mustangman]

Sounds more like a tire balance or bent wheel problem based on the speed it happens

[texases]

And if not either of those, maybe a worn suspension part.