I recently got my tires rotated at Costco and after driving about 5 miles the tire inflation light came on. After a several day saga and many trips to Costco I was informed by Toyota that this is a "known issue". The fix is relatively easy to do yourself. You have to hold the reset button under the steering wheel while driving straight forward (in a parking lot or safe location with no traffic) for approximately 30 seconds. If you call Toyota they will do it for you for free.