Hi gurus, My Ascent has clocked abt 800km's now and it's still pretty new. After getting the car for abt 2 weeks, I decided to stop by the gas station to have the tyre pressure checked. It was a digital meter at a BP station, so I could see the pressure reading. The rear right tyre was having 29psi, while the rest of the 3 were having 32psi (which was the right pressure for Corolla). Anyway, I thought maybe the dealer didn't do a good job, so I corrected it.. 3 days later, I decided to check again.. and to my surprise -- the rear right tyre was reading 31psi while the rest were still retaining 32psi. I knew something was wrong, I did a thorough visual inspection but couldnt find any nails in it... My wife did drive the car over a road kerb (at very low speed, she was making a U-turn), but I dont think that's the cause becoz I dont have alloys.. the steel wheels are tough as hell.. What could it be? Did I get a defective tyre from Day 1? Can I do a warranty claim on tyre from Toyota? Help....