Has anyone finally been able to resolve or atleast eliminate majority of the idle vibration on the 4th gen RX350?

I feel noticeable but not violent vibration under my seat at idle in D or R, not in P or N. I have been looking into possible solutions for months and I’m just hesitant to pull the trigger on replacing engine mounts on the car as a last resort.

My 2017 RX350 (104k kms) idles at like 580-610 rpms from what I can gage from BlueDriver. Its particularly annoying to deal with in stop and go traffic.

I’ve tried MAF sensor cleaning, throttle body cleaning, injectors, changing fuel type (87 to 91/93), putting in fuel injector cleaner (BG44k) and nothing has eliminated the vibrations yet so far.

Car otherwise is really enjoyable to drive. Hopefully someone has a solution they can recommend!

 

Yes. Swap for the hybrid instead.

 

Why not just increase the idle rpm via an OBD-2 programmer?. In the carburated days, it was just a screw you turned. A bit more complicated now. Have you taken it to a mechanic?

 

You cannot do that because it's all programmed to be controlled by the PCM.

 

How long have you owned this vehicle?
If new to you, it may be normal, and you need to get used to the new noises of this vehicle. It is not uncommon, and we have had similar requests previously.
You have low mileage for issues to show up or have a motor mount failure and you have already addressed any fuel system issues.
Have you checked for stored codes or had a shop check it out?
Or done a transmission fluid change. This is the time to get that done, and it may help.