Purchase date 7/8/24 Vibration/shake since new now 3450 miles
7/15/24 Discount tire Road force toyo - unchanged
7/20/24 Drove with Dealer Tech passenger side worse
Dealer Road Road force toyo - unchanged called Lexus specialist
8/14/24 to 8/26/24 Lexus Specialist
- 2 hours test driving his OT+ then my OT+ with lead dealer tech and myself. Frequency testing in the front seat and back seat. took 8 best toyo tires from both vehicles test drive my OT+ again with Lexus specialist and dealer tech again - unchanged. Lexus tech reset adaptations in computer to see if it improved - unchanged. stated the valving in the OT rear shocks are different than Lux/Prem due to anticipated increased weight allowance for overlanding. Suspects it may be due to Adaptive Shocks but no solution.
Changed toyo tires to Wildpeak AT4 LT - Unchanged...
10/1/24 Unchanged, shaking felt in passenger seat and rear seat mostly, not speed specific, worsens throughout the day all types of asphalt conditions. Attempted to capture on video but iPhone stability image control tends to zero out motion. rigged up a water vessel today to help demonstrate and attached some video.
Fully aware that most don't have this issue and thankful you dont, but for those that do its not practical to even drive. For context I have built and owned dozens of cars including numerous FJ40, FJ60, Tacoma's, 4 runners, GX470's, Ford Super Duty trucks and dozens of tractors/semi's etc etc. (just trying to offer context on the source of the diagnostics only not trying to boast so please understand i've not posted since this thread was on Page 1 trying to have a comprehensive perspective for peoples benefit and help try and narrow this down.) Wescott designs has put on the new King shock/suspension package and curious if they did this to any yet that had the vibration. It took Toyota 2 years to address the Tundra motor. They are dealing with the TX stop sale due to the airbag issue with windows down and now the 23/24 Corolla over brake module issue. My wife daily drives 2020 TRD Pro with 60k miles and just put on the wildpeak AT4's to replace the Nitto's and it drives like butter. I've since parked my GX550 and driving one of my other cars.
This vibration is not related to brake shims or squeaking for those thinking that Sroberts may have been related.
Again i'm just sharing my knowledge of my experience and perspective from research over 3 months. and shout out to TFlyfisher love the graphic!