I beleive DT has a 30 day trial on their tires. If you think it is the tires, might try different tires.

I have not seen it stated anywhere that you can not use directional tires on the GS.

Is this a pull or drift. I have seen both stated in this thread.

Also, might try posting in the tire section. There are some helpfull guys there.

 

Any update?

I’m having the same drift to right problem with the high dollar Michelin Pilot Sport A/S Plus directional tires. Been through most of the same steps as you. Lexus temporally swapped the front wheels for a quick test to verify. The tires drift to the left though not as bad after the swap. I really like the tires other than this flaw. Michelin after talking to the dealer lead tech said they will put any Michelin tire on I chose. Nice offer, but the only other option that is close is the PS2. At least it is not directional but has not mileage warranty and 90% of my driving is highway. BTW, DT changed out two tires. That is 6 tires that behave the same. One alignment, another check. All within spec.

 

It is one or more of the tires causing the problem. You will have to get them changed.

BTW, for the person who asked if he had his tires balanced, balancing has nothing to do with pulling/drifting. Unbalanced wheels/tires will cause vibration at speed, not pull or drift.

 

It appears all Six or combination of the tires behave the same which is odd for Michelin tires. Bad batch, not tight enough speck for Lexus.. I do not know.

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