My previous 3 lexus were IS200s which all suffered the same complaint of corroding wheels
and Lexus did change them. The excuse was it only happened in the UK so it wasn't worth fixing at source.
When I bought my IS250 nearly 3 years ago I thought this would not be a problem - wrong
One front and one back now have bubbles and Lexus will replace those 2 but not the others.
The car has only done 17000 miles and, I would imagine, the other 2 will do the same but after
the warranty has expired. The dealer told me Lexus are getting very strict and will not sort
it out once the warranty has expired.
After 11 years with Lexus and many problems we are to part company.
I think they have quality issues and wouldn't be surprised if we discover a lot of components
are now made to a price which is now about to bite back.
I also run Fords at the same time and, over those 11 years, have always been far more reliable
and generally don't visit the dealer between services.