GX550 Overtrail Vibration

[DJ’s Sled]

Thank you everyone for your excellent reports and efforts to diagnose this situation which seems quite prevalent on at least the OT variants.

Crazy that Lexus hasn’t done more to figure it out- that we know of. I mean, put a couple of highly experienced suspension, drivetrain techs in the field and get this solved. Cant cost much to do that. Then go devise a fix for affected vehicles.

 

[gavensmith]

Last model of the 2024, Lux +, first moment I drove it, I felt like I was driving over a road with constant ripples in it. Multi-sets of tires, still same. This is a long thread..I read quite a bit. Has anyone found a resolution yet? Just at 1,000 miles. TIA.

 

[DJ’s Sled]

Last model of the 2024, Lux +, first moment I drove it, I felt like I was driving over a road with constant ripples in it. Multi-sets of tires, still same. This is a long thread..I read quite a bit. Has anyone found a resolution yet? Just at 1,000 miles. TIA.

Good description, your experience matches mine in the OT. Thank you for posting.

 

[gavensmith]

Good description, your experience matches mine in the OT. Thank you for posting.

I left the smoothest SUV ever on 23's. I get this is a SUV truck, but dang. A bottle of water in the cup holder just vibrates from 5 mph to 80

 

[Snooperstyle]

Last week, I discovered that my OT+ driveshaft was poorly (or not at all) lubricated. Less than 5k miles on the truck. I was experiencing a pop/click noise when driving very slow and turning. We thought it was a suspension component (aftermarket so wouldn't have been surprised), but then we added grease to the fitting, and now the pop is gone, but damn, what the hell? Mine is at the dealer as we speak to flash the transmission computer and have them road force balance my tires, and inspect the driveshaft, among other issues I am having. They claim that the transmission clunk is normal, and flashing the computer is only a temporary fix, but did agree to do it. Now it has me wondering if the vibration is related to the drivetrain. I still need to fix my alignment and dealer can't do that since aftermarket. But after that, I will be almost at a point where just about everything has been done other than completely removing the sway bars and eKDSS. I am willing to live with the rough ride for a while, but may end up trading it in at some point. Agree with others here that it is totally ridiculous that Lexus is acting like this isn't an issue worth investigating further.