Trebber

Just bought an 05 GX. Took my time, found out what the invoice price was and comparative stats to other vehicles. Then went into the dealer ....

Saw the sticker price was 55K with the options I wanted and as I was looking around the vehicle a sales rep walked up.

Told him how much I loved driving my 02 SC430 and my wife was looking for a new SUV. He asked me if I bought the SC there (had him walk into that one) and I mentioned no.

1) The original sales rep was too pushy, calling every other day after I test drove the SC

2) After I mentioned to him I was deciding which convertable to buy he started treating me like I couldn't afford the car

3) The general sales manager lied to me when I asked if there was a 02 in Colorado. Gave me the run around and pushed hard for me to buy a new model.

After hearing this, the sales rep was more than willing to make my SUV buying experience worth it. I ended up buying the 05 GX for 47K (with 12 miles on it) and had them give me blue book for my trade in on a 98 Expedition (private sales blue book, not dealer blue book).

a) Lexus really tries to take care of their customers

B) It pays to do some research before walking into the dealership

Since it is still under warranty, I would do everything I can to get the car inspected at the dealer.  Document who you spoke w/ and the particular problem.  But before you do...here are some questions. 

What tires are you running (the recommended stock one or a similar replacement)?  Are you on the stock run flats?  Are you using aftermarket wheels?  What is your tire size and recommended psi (I noticed you said it should be at 33psi)? 

Tire sensors should not have to be reset.  That doesn't make sense.  The tire system has to be easy enough for the average consumer to use, therefore the system should automatically be able to detect changes in air pressure at all times.  It shouldn't have to be reset at all. 

Have you had new tires installed?  If so, were you told of any abnormalities/damage to the rims?  Was any repair to the rims made?

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If I remember correctly, the 33 psi is very close to the threshhold which would signal the pressure light to come on. It doens't sound like a faulty sensor but you are right at the limit for that sensor.