Mine was the same but is a lot better after some padding. It's not perfect yet. Needs more padding.
I think mine are centered. They are bright in Park and dim out elegantly when in Drive. I noticed this very recently. :)
I am sorry that you've had some problems with your car and am surprised that Lexus haven't treated you better. Lexus dealers are supposed to be very good in terms of customer service. I did not buy my car from Lexus so can't comment on the after sales service aspect of it. I have however been in on numerous occasions to the dealerships. First I went to Lexus Reading for my 60K service and dash rattles ($$). The customer service was acceptable but not the fairy tales I had been reading on this forum. I've been to Lexus Croydon on two occasions too and couldn't help but notice how they pampered me even though I was in for very small jobs. I guess it varies from dealer to dealer.