you know what grinds MY gears?
The Toyota RAV4 has a tire pressure gague. the idea is, when a tire is low, the light will come on and let you know to check tire pressure. the only problems are 1. it doesn't tell you which tire, and 2. it comes on with the slightest adjustment in pressure (say, from 30 psi, where it's supposed to be, to 29.5 psi)
I swear I am going to rip that thing out of the car.