Gxxr

I forget now, I will go look at it tomorrow when I am playing with Techstream on it as well.

Gxxr

I can't seem to locate where the tires are marked as P or LT. I know that the size doesn't say LT or P in it.

craigrpete

Gxxr - do you see you first or second row headrests or visors vibrating with the new tires?

I do (minor), but otherwise can’t feel anything even at higher highway speeds so I assumed it was because of the body on frame design. If you don’t have those symptoms then I need another wheel balance!

Borgs

2019 Premium here. Just under 2000 miles on the clock. It just turned to spring here in PA and with that, the climate control is being used differently than what it was during the colder days. Not using seat warmers, AC being used more, etc. Noticeable vibration when GX is in drive or reverse but at idle. I’ve researched this and it appears to be common, that you will get the vibration at a certain rpm, but then it will stop once the tach increases or decreases ever so slightly. Like so touchy that I noticed it will stop vibrating if I turn the seat warmer or seat cooler on, and the vibration comes back when turned off. Wouldnt think something as small as a seat warmer would impact the rpm of a V8, but what do I know. In any event, seems to be an ECU issue and a simple adjustment of the rpm at idle should be a fix, but I haven’t seen any recent resolution or fix to this on the webs, and for those who have gone back to the dealer, they seem to say this is “normal”. Seems like a weird issue for any car, let alone a new Lexus. Any thoughts?

caesosa

Doesn’t seem normal, but it may depend on what you consider a vibration. The engine does shift from higher rpm’s to lower at a stop in gear depending on conditions but I don’t notice or consider any change as a vibration.

Borgs

Thanks for the response. It’s definitely noticeable. My Tundra certainly doesn’t do this. Previous 4 Runner and Highlanders haven’t either. I am hoping the ECU needs to learn something now that the sweat warmers won’t be used as much and the AC will be kicking in more. I will tell dealer next time.

kgbagent1

2018 Premium here, also in PA. Your issue does not sound normal and I've not experienced this. I can detect the AC compressor cycling (like all cars) but get zero indication of vibration.

Incidentally, I have driven several new GX460's--from 2017 to 2019. About half of them had a perceptible slight steering wheel vibration at different speeds. Mine is so smooth and vibration-free it might as well be RWD.

Take your car to the dealer and make them make it perfect.

Craigyyy

Mine sometimes has a very slightly rough low idle. If it kicks up 100rpm it goes away completely. But mine is a 2011 and yours is a 2019.

Borgs

Thanks for the context and insight. Appreciated!

Borgs

Thank you. It does seem odd, but even more odd is this seems to be common.

GoHuskers

My '15 does this from day 1 and still does it now at 44k miles. Sometimes when the rpm drops to 500-550 it vibrates but it smoothes out at 600 or so.

My service director said the idle rpm cannot be manually adjusted.

Craigyyy

On my brief research one solution I found was to clean the throttle body. Obviously this solution wouldn't work for you or Mr. Borgs with brand new cars with new clean throttle bodies and sensors so I wonder if it would apply to me.

If only we could adjust the idle, probably just 50rpm or less I think it would be cured. I was tempted to try to get a mechanic to adjust this for me or do it myself, but I was worried about opening up a can of worms. Sounds like that's not an option so that's one more solution off the list.

It's been like this for a long time for me, but it never really bothers me enough to take any action. Again, I subscribe to ain't broke don't fix it. But I'd understand that this would be particularly irritating on a new car.

Borgs

Boggles the mind. It sounds like a bumble bee bumping into the window.

Borgs

I will ask the dealer. But I am assuming the answer will be what you got. It’s amazing. I sure hope I can get used to it...

caesosa

Are you able to get a quick video of the rpm needle when it is making the vibration. Also, the water bottle test in the center console helps, this way we can compare to see if the vibration is similar to others or of this is an isolated incident.