I change 4 new tires twice...same issue occur. I brought it to Park Place Lexus and they told me my alignment is fine. But the car keeps drifiting slowly to the right. Before i had my tires change, the car was driving perfectly fine and no drifting to right side. I decided to change to Yokohoma's for the third time after telling Discount tire manager that it is not my alignment and probably the tires he is selling me. He finally gave it a shot and listen to me....replace four new Yokohoma's and problem was fixed. You gotta be careful with the directional tires...it cause the car to pull to the right.

 

Thanks. Which brand and model did you have that drifted?

Also I did some googling and found something interesting on the subject:

http://en.allexperts.com/q/Tires-235...ght-road-1.htm

 

I would rather have tire with superior grip. The Yokohamas are not great tires in terms of either dry traction, wet traction, aquaplaning, noise or ride quality. Tire Racks professional track tests of the tires are quite illuminating.

 

Depends which model Yokohama's you are buying !!!

 

So had the front to back rotation performed and the problem is still there.

This suggests the tires are not the problem.

Does anybody here know if secondary angles (SAI) on the GS are adjustable? Mine are out of spec but were not changed at the alignment. I read somewhere that SAI is not usually adjustable.

Left is below min spec and Right is above max spec. The car drifts to the right. Is this the cause and if so is it fixable?

 

im telling you whoever aligned the car messed it up.

 

Since we have low profile tires it is very sensitive to "RADIAL PULL" from the tires!!!

I've learned this term after they replaced my tires 3 TIMES within a month, before they realized that it was caused by "RADIAL PULL".

From what I was told, Lexus paired up the tires before the installation to reduce or eliminate the "RADIAL PULL" in our toys.

Here is a link to the definition: http://www.blurtit.com/q996700.html

Personally I preferred to spend extra $200~$300 at the Sewell Lexus for the new set of tires, just because I know that they will spend time to eliminate or reduce the "RADIAL PULL' from the new tires... Not sure if other Lexus dealership do this too!?!