flat tire sensor came on this morning on m3

[threethirtyi]

got into my e46 m3 and noticed that this strange light was on turns out it means i got a flat tire, but i didnt i even inflated the tires some more and the light still never came off...? WHATS THE DEAL HERE?

PS. my car is in a heated garage...so i dont know if the weather plays a factor...

[Ron]

Not necessarilly a flat tire but a tire that's under inflated. Take out your tire gauge & start checking.
Yes, I think the weather is a factor in this case since I also have to do this to my tires when I drive it for the 1st time after storage.

[kidneykill]

yah no worries, just check your tire pressures... my sensor usually comes on when suddenly it gets extremely cold out... remember, extreme cold temps affect tire pressures.. its a great warning system as we should be checking our tire pressures regularly anyway.