2018 GX vibrating idle issue

[CapnSpaulding]

45k miles on my ‘18 GX. It will idle normally, but every few seconds I get a slight irregular shudder/vibration. It is very brief and VERY subtle, but it's there. I can feel it through the console, door, steering wheel, and even looked underneath and can see the heatshield on the exhaust vibrate ever so briefly when it happens.
I've been in cars with bad plugs/IAC issues/Dirty throttle bodies and it doesn’t feel anywhere close to that, this is much more subdued and brief.
I have no CEL, tach doesn't budge, just cleaned the MAF sensor and the Throttle body and put in a new air filter to no avail. I run injector cleaner through it every 5k-10k and use strictly 91 octane. My local dealer is the king of "Could not replicate," so I only go there for big issues.

Any ideas? Maybe already needing spark plugs or a failing coil at 45k?

 

[1ounce]

I wouldnt pay too much attention to it. For as smooth as ICE's have become its still a fairly violent way to make power. My 4Runner does the same thing a bit. You can try to clean the MAF/TB.

Stop running injector cleaner through it though. Any decent gas is going to have plenty of additives.

 

[CapnSpaulding]

I wouldnt pay too much attention to it. For as smooth as ICE's have become its still a fairly violent way to make power. My 4Runner does the same thing a bit. You can try to clean the MAF/TB.

Stop running injector cleaner through it though. Any decent gas is going to have plenty of additives.

Cleaned both the MAF/TB and no change, it is bugging the hell out of me though. Not really much else left except plugs/coils I guess. Maybe not a failing plug, but a defective one? Idk, I would really hope not at 45k, but I am out of ideas. Anyone else notice this with their GX?