I get in the Prius yesterday and pull out of the garage and notice an idiot light flashing that looks like a tire cross section. Hmmm. Pull out the manual and it says if it's flashing then the low tire pressure indicator system is malfunctioning (the light is supposed to be on, solid). Double Hmmm. OK, backup to the garage. Get out my nice digital pressure gauge and start at the driver's front. 79 PSI!!!!!!! I think a little bit of drool spilled out of my mouth because I was staring the gauge so long with a dumbfounded look on my face. Naw, can't be. Check again, still 79. Let the air out, back down to 35 psi. Checked the rest and the back passenger was down to 26 psi. Daughter said the light came on the day before and when she walked around the car the only tire that looked low was the driver's front so she gave it a "little" air without using a gauge. (Every vehicle I own has a gauge in the glove box and there has to be 4 more in a basket above my compressor.) Needless to say we had a little discussion about proper vehicle maintenance along with some hands-on learning. Thread called on account of stupid. Zenmervolt - AnandTech Garage Moderator - Goddamn VB re-opened a previously locked thread. Locked a second time.