Is there possible to adjust idle rpm to make it little bit higher on Civic Hybrid 2nd gen?

 

Why so you want the idle higher?

 

*do*

 

I'm not even sure that is possible since it's all mostly controlled electronically.

 

Drive by wire I believe, I'm just wondering why it would be beneficial to adjust it if possible

 

Cause increasing idle rpm for a few dozens may help to get rid of vibration.
Any other options how to fix vibration? I feel it on the steering wheel while on warm idle.
When car is cold idle speed is higher so i do not feel any vibration.

 

That is not how you solve an issue like that by increasing idle speed.

If you are having vibration it might be a motor mount.

 

I would fix the underlying issue rather than apply band-aids. Bad motor mounts can lead to damaging your axles, for example.