Those sensore/monitors were the worst thing(besides brakes) put on the Titan. Best thing to do is just keep you a handy tire gauge or just make a mental note of the difference. Otherwise i see you spending some unwanted time at the dealership. I took my truck several times for the sensor, finally i told them to forget it!!! it still isnt 100%. But, i dont have the nice Nav. system either, so yours may be easier than what i went through.