Got my September OnStar vehicle report a few days ago and all was good.
With the exception of the statement that "One or more of you tires is underinflated and may not be detectible by your vehicles tire pressure monitor system". Problem is, that the tires are within 1lb. of what they were when we purchased it in May 2011. (34#'s). I check the tire pressure on an frequent basis, in addition to what the vehicle info center info states. WTH?
